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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.06481">arXiv:2502.06481</a> <span> [<a href="https://arxiv.org/pdf/2502.06481">pdf</a>, <a href="https://arxiv.org/format/2502.06481">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> FCC-ee positron source from conventional to crystal-based </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alharthi%2C+F">Fahad Alharthi</a>, <a href="/search/physics?searchtype=author&query=Chaikovska%2C+I">Iryna Chaikovska</a>, <a href="/search/physics?searchtype=author&query=Chehab%2C+R">Robert Chehab</a>, <a href="/search/physics?searchtype=author&query=Mytrochenko%2C+V">Viktor Mytrochenko</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Y">Yuting Wang</a>, <a href="/search/physics?searchtype=author&query=Zhao%2C+Y">Yongke Zhao</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Canale%2C+N">Nicola Canale</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">Vincenzo Guidi</a>, <a href="/search/physics?searchtype=author&query=Malagutti%2C+L">Lorenzo Malagutti</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Negrello%2C+R">Riccardo Negrello</a>, <a href="/search/physics?searchtype=author&query=Patern%C3%B2%2C+G">Ginafranco Patern貌</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Boccanfuso%2C+D">Daniele Boccanfuso</a>, <a href="/search/physics?searchtype=author&query=Iorio%2C+A+O+M">Alberto Orso Maria Iorio</a>, <a href="/search/physics?searchtype=author&query=Bertelli%2C+S">Susanna Bertelli</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">Mattia Soldani</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.06481v1-abstract-short" style="display: inline;"> The high-luminosity requirement in future lepton colliders imposes a need for a high-intensity positron source. In the conventional scheme, positron beams are obtained by the conversion of bremsstrahlung photons into electron-positron pairs through the interaction between a high-energy electron beam and a high-Z amorphous target. One method to enhance the number of produced positrons is by boostin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.06481v1-abstract-full').style.display = 'inline'; document.getElementById('2502.06481v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.06481v1-abstract-full" style="display: none;"> The high-luminosity requirement in future lepton colliders imposes a need for a high-intensity positron source. In the conventional scheme, positron beams are obtained by the conversion of bremsstrahlung photons into electron-positron pairs through the interaction between a high-energy electron beam and a high-Z amorphous target. One method to enhance the number of produced positrons is by boosting the incident electron beam power. However, the maximum heat load and thermo-mechanical stresses bearable by the target severely limit the beam power of the incident electrons. To overcome these limitations, an innovative approach using lattice coherent effects in oriented crystals appears promising. This approach uses a single thick crystal that serves as a radiator and a converter. In this paper, we investigate the application of this scheme as an alternative to the conventional positron source at the Future Circular Collider (FCC-ee). Simulations were carried out from the positron production stage to the entrance of the damping ring to estimate the accepted positron yield. The results demonstrate the advantages of the crystal-based positron source: it requires thinner targets than the conventional scheme, resulting in a 14% reduction in the deposited power while achieving a 10% increase in accepted positron yield. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.06481v1-abstract-full').style.display = 'none'; document.getElementById('2502.06481v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.00183">arXiv:2502.00183</a> <span> [<a href="https://arxiv.org/pdf/2502.00183">pdf</a>, <a href="https://arxiv.org/format/2502.00183">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> Electron Acceleration in Carbon Nanotubes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bontoiu%2C+C">Cristian Bontoiu</a>, <a href="/search/physics?searchtype=author&query=Bonatto%2C+A">Alexandre Bonatto</a>, <a href="/search/physics?searchtype=author&query=Apsimon%2C+%C3%96">脰znur Apsimon</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">Gianluca Cavoto</a>, <a href="/search/physics?searchtype=author&query=Drebot%2C+I">Illya Drebot</a>, <a href="/search/physics?searchtype=author&query=Gatti%2C+G">Giancarlo Gatti</a>, <a href="/search/physics?searchtype=author&query=Giner-Navarro%2C+J">Jorge Giner-Navarro</a>, <a href="/search/physics?searchtype=author&query=Lei%2C+B">Bifeng Lei</a>, <a href="/search/physics?searchtype=author&query=Mart%C3%ADn-Luna%2C+P">Pablo Mart铆n-Luna</a>, <a href="/search/physics?searchtype=author&query=Rago%2C+I">Ilaria Rago</a>, <a href="/search/physics?searchtype=author&query=P%C3%A9rez%2C+J+R">Juan Rodr铆guez P茅rez</a>, <a href="/search/physics?searchtype=author&query=Nunes%2C+B+S">Bruno Silveira Nunes</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Valagiannopoulos%2C+C">Constantinos Valagiannopoulos</a>, <a href="/search/physics?searchtype=author&query=Welsch%2C+C+P">Carsten P. Welsch</a>, <a href="/search/physics?searchtype=author&query=Xia%2C+G">Guoxing Xia</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+J">Jiaqi Zhang</a>, <a href="/search/physics?searchtype=author&query=Resta-L%C3%B3pez%2C+J">Javier Resta-L贸pez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.00183v2-abstract-short" style="display: inline;"> Wakefield wavelengths associated with solid-state plasmas greatly limit the accelerating length. An alternative approach employs 2D carbon-based nanomaterials, like graphene or carbon nanotubes (CNTs), configured into structured targets. These nanostructures are designed with voids or low-density regions to effectively reduce the overall plasma density. This reduction enables the use of longer-wav… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00183v2-abstract-full').style.display = 'inline'; document.getElementById('2502.00183v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.00183v2-abstract-full" style="display: none;"> Wakefield wavelengths associated with solid-state plasmas greatly limit the accelerating length. An alternative approach employs 2D carbon-based nanomaterials, like graphene or carbon nanotubes (CNTs), configured into structured targets. These nanostructures are designed with voids or low-density regions to effectively reduce the overall plasma density. This reduction enables the use of longer-wavelength lasers and also extends the plasma wavelength and the acceleration length. In this study, we present, to our knowledge, the first numerical demonstration of electron acceleration via self-injection into a wakefield bubble driven by an infrared laser pulse in structured CNT targets, similar to the behavior observed in gaseous plasmas for LWFA in the nonlinear (or bubble) regime. Using the PIConGPU code, bundles of CNTs are modeled in a 3D geometry as 25 nm-thick carbon tubes with an initial density of $10^{22}$ cm$^{-3}$. The carbon plasma is ionized by a three-cycle, 800 nm wavelength laser pulse with a peak intensity of $10^{21}$ W cm$^{-2}$, achieving an effective plasma density of $10^{20}$ cm$^{-3}$. The same laser also drives the wakefield bubble, responsible for the electron self-injection and acceleration. Simulation results indicate that fs-long electron bunches with hundreds of pC charge can be self-injected and accelerated at gradients exceeding 1~TeV$/$m. Both charge and accelerating gradient figures are unprecedented when compared with LWFA in gaseous plasma. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.00183v2-abstract-full').style.display = 'none'; document.getElementById('2502.00183v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.14827">arXiv:2501.14827</a> <span> [<a href="https://arxiv.org/pdf/2501.14827">pdf</a>, <a href="https://arxiv.org/format/2501.14827">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Proposal of the KOTO II experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ahn%2C+J+K">Jung Keun Ahn</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+A">Antonella Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anzivino%2C+G">Giuseppina Anzivino</a>, <a href="/search/physics?searchtype=author&query=Augustine%2C+E">Emile Augustine</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bian%2C+J">Jianming Bian</a>, <a href="/search/physics?searchtype=author&query=Brizioli%2C+F">Francesco Brizioli</a>, <a href="/search/physics?searchtype=author&query=De+Capua%2C+S">Stefano De Capua</a>, <a href="/search/physics?searchtype=author&query=Carini%2C+G">Gabriella Carini</a>, <a href="/search/physics?searchtype=author&query=Chobanova%2C+V">Veronika Chobanova</a>, <a href="/search/physics?searchtype=author&query=D%27Ambrosio%2C+G">Giancarlo D'Ambrosio</a>, <a href="/search/physics?searchtype=author&query=Dainton%2C+J+B">John Bourke Dainton</a>, <a href="/search/physics?searchtype=author&query=D%C5%91brich%2C+B">Babette D艖brich</a>, <a href="/search/physics?searchtype=author&query=Fry%2C+J">John Fry</a>, <a href="/search/physics?searchtype=author&query=Gianoli%2C+A">Alberto Gianoli</a>, <a href="/search/physics?searchtype=author&query=Glazov%2C+A">Alexander Glazov</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+M">Mario Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Gorbahn%2C+M">Martin Gorbahn</a>, <a href="/search/physics?searchtype=author&query=Goudzovski%2C+E">Evgueni Goudzovski</a>, <a href="/search/physics?searchtype=author&query=Homma%2C+M">Mei Homma</a>, <a href="/search/physics?searchtype=author&query=Hsiung%2C+Y+B">Yee B. Hsiung</a>, <a href="/search/physics?searchtype=author&query=Husek%2C+T">Tom谩拧 Husek</a>, <a href="/search/physics?searchtype=author&query=Hutchcroft%2C+D">David Hutchcroft</a>, <a href="/search/physics?searchtype=author&query=Iyer%2C+A">Abhishek Iyer</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+R+W+L">Roger William Lewis Jones</a> , et al. (57 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.14827v1-abstract-short" style="display: inline;"> The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\to蟺^0谓\bar谓$ at J-PARC. With a beamline to extract long-lived neutral kaons at 5 degrees from a production target, the single event sensitivity of the decay is $8.5\times 10^{-13}$, which is much smaller than the Standard Model prediction $3\times 10^{-11}$. This allows searches for new physics beyond the Standard… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14827v1-abstract-full').style.display = 'inline'; document.getElementById('2501.14827v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.14827v1-abstract-full" style="display: none;"> The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\to蟺^0谓\bar谓$ at J-PARC. With a beamline to extract long-lived neutral kaons at 5 degrees from a production target, the single event sensitivity of the decay is $8.5\times 10^{-13}$, which is much smaller than the Standard Model prediction $3\times 10^{-11}$. This allows searches for new physics beyond the Standard Model and the first discovery of the decay with a significance exceeding $5蟽$. As the only experiment proposed in the world dedicated to rare kaon decays, KOTO II will be indispensable in the quest for a complete understanding of flavor dynamics in the quark sector. Moreover, by combining efforts from the kaon community worldwide, we plan to develop the KOTO II detector further and expand the physics reach of the experiment to include measurements of the branching ratio of the $K_L\to蟺^0\ell^+\ell^-$ decays, studies of other $K_L$ decays, and searches for dark photons, axions, and axion-like particles. KOTO II will therefore obtain a comprehensive understanding of $K_L$ decays, providing further constraints on new physics scenarios with existing $K^+$ results. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14827v1-abstract-full').style.display = 'none'; document.getElementById('2501.14827v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to the J-PARC PAC. arXiv admin note: substantial text overlap with arXiv:2110.04462</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.10715">arXiv:2412.10715</a> <span> [<a href="https://arxiv.org/pdf/2412.10715">pdf</a>, <a href="https://arxiv.org/format/2412.10715">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> New full simulation model of crystal-based beam extraction using BDSim toolkit enhanced with Geant4 G4ChannelingFastSimModel </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Kube%2C+G">G. Kube</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Patern%C3%B2%2C+G">G. Patern貌</a>, <a href="/search/physics?searchtype=author&query=Wittenburg%2C+K">K. Wittenburg</a>, <a href="/search/physics?searchtype=author&query=Strokov%2C+S">S. Strokov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.10715v2-abstract-short" style="display: inline;"> We present the development of a full simulation model for crystal-based beam extraction utilizing the BDSim toolkit in conjunction with the Geant4 G4ChannelingFastSimModel and G4BaierKatkov frameworks. A novel accelerator component - a bent crystal compatible with G4ChannelingFastSimModel - was designed and implemented. As a demonstration, we constructed a complete simulation model of the DESY II… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.10715v2-abstract-full').style.display = 'inline'; document.getElementById('2412.10715v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.10715v2-abstract-full" style="display: none;"> We present the development of a full simulation model for crystal-based beam extraction utilizing the BDSim toolkit in conjunction with the Geant4 G4ChannelingFastSimModel and G4BaierKatkov frameworks. A novel accelerator component - a bent crystal compatible with G4ChannelingFastSimModel - was designed and implemented. As a demonstration, we constructed a complete simulation model of the DESY II Booster Synchrotron within BDSim, incorporating all relevant components. The model accounts for betatron and synchrotron oscillations, as well as radiation losses in the oriented crystal, using G4BaierKatkov. Simulation results demonstrate the successful extraction of a primary monoenergetic 6 GeV electron beam, characterized by a charge of 23 pC, a horizontal beam emittance of 3.6 $渭$m$\cdot$rad, a vertical beam emittance of 0.32 $渭$m$\cdot$rad, and an energy spread of 0.008. This approach provides a powerful tool to significantly accelerate R&D for applications related to crystal-based extraction and collimation in synchrotrons and colliders. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.10715v2-abstract-full').style.display = 'none'; document.getElementById('2412.10715v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.07379">arXiv:2412.07379</a> <span> [<a href="https://arxiv.org/pdf/2412.07379">pdf</a>, <a href="https://arxiv.org/format/2412.07379">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Germanium target sensed by phonon-mediated kinetic inductance detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Delicato%2C+D">Daniele Delicato</a>, <a href="/search/physics?searchtype=author&query=Angelone%2C+D">Danilo Angelone</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+M">Martino Calvo</a>, <a href="/search/physics?searchtype=author&query=Cappelli%2C+M">Matteo Cappelli</a>, <a href="/search/physics?searchtype=author&query=Chowdhury%2C+U">Usasi Chowdhury</a>, <a href="/search/physics?searchtype=author&query=Del+Castello%2C+G">Giorgio Del Castello</a>, <a href="/search/physics?searchtype=author&query=Folcarelli%2C+M">Matteo Folcarelli</a>, <a href="/search/physics?searchtype=author&query=Roccagiovine%2C+M+d+G">Matteo del Gallo Roccagiovine</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">Vincenzo Guidi</a>, <a href="/search/physics?searchtype=author&query=Pesce%2C+G+L">Giovanni Luca Pesce</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Cruciani%2C+A">Angelo Cruciani</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Monfardini%2C+A">Alessandro Monfardini</a>, <a href="/search/physics?searchtype=author&query=Vignati%2C+M">Marco Vignati</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.07379v1-abstract-short" style="display: inline;"> Cryogenic phonon detectors are adopted in experiments searching for dark matter interactions or coherent elastic neutrino-nucleus scattering, thanks to the low energy threshold they can achieve. The phonon-mediated sensing of particle interactions in passive silicon absorbers has been demonstrated with Kinetic Inductance Detectors (KIDs). Targets with neutron number larger than silicon, however, f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.07379v1-abstract-full').style.display = 'inline'; document.getElementById('2412.07379v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.07379v1-abstract-full" style="display: none;"> Cryogenic phonon detectors are adopted in experiments searching for dark matter interactions or coherent elastic neutrino-nucleus scattering, thanks to the low energy threshold they can achieve. The phonon-mediated sensing of particle interactions in passive silicon absorbers has been demonstrated with Kinetic Inductance Detectors (KIDs). Targets with neutron number larger than silicon, however, feature higher cross section to neutrinos while multi-target absorbers in dark matter experiments would provide a stronger evidence of a possible signal. In this work we present the design, fabrication and operation of KIDs coupled to a germanium absorber, achieving phonon-sensing performance comparable to silicon absorbers. The device introduced in this work is a proof of concept for a scalable neutrino detector and for a multi-target dark matter experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.07379v1-abstract-full').style.display = 'none'; document.getElementById('2412.07379v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">3 Figures, 2 Tables, 5 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.02966">arXiv:2411.02966</a> <span> [<a href="https://arxiv.org/pdf/2411.02966">pdf</a>, <a href="https://arxiv.org/format/2411.02966">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.5281/zenodo.13970100">10.5281/zenodo.13970100 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> MuCol Milestone Report No. 5: Preliminary Parameters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">Carlotta Accettura</a>, <a href="/search/physics?searchtype=author&query=Adrian%2C+S">Simon Adrian</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">Rohit Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A9%2C+C">Chiara Aim茅</a>, <a href="/search/physics?searchtype=author&query=Aksoy%2C+A">Avni Aksoy</a>, <a href="/search/physics?searchtype=author&query=Alberghi%2C+G+L">Gian Luigi Alberghi</a>, <a href="/search/physics?searchtype=author&query=Alden%2C+S">Siobhan Alden</a>, <a href="/search/physics?searchtype=author&query=Alfonso%2C+L">Luca Alfonso</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">Nicola Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">David Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">Paolo Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">Fabio Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">Rob Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">Artur Apresyan</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">Pouya Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">Mohammed Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Auchmann%2C+B">Bernhard Auchmann</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">John Back</a>, <a href="/search/physics?searchtype=author&query=Badea%2C+A">Anthony Badea</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+K+J">Kyu Jung Bae</a>, <a href="/search/physics?searchtype=author&query=Bahng%2C+E+J">E. J. Bahng</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">Lorenzo Balconi</a>, <a href="/search/physics?searchtype=author&query=Balli%2C+F">Fabrice Balli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a> , et al. (369 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.02966v1-abstract-short" style="display: inline;"> This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02966v1-abstract-full').style.display = 'inline'; document.getElementById('2411.02966v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.02966v1-abstract-full" style="display: none;"> This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2023 Tentative Parameters Report. Particular attention has been given to regions of the facility that are believed to hold greater technical uncertainty in their design and that have a strong impact on the cost and power consumption of the facility. The data is collected from a collaborative spreadsheet and transferred to overleaf. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02966v1-abstract-full').style.display = 'none'; document.getElementById('2411.02966v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.12450">arXiv:2407.12450</a> <span> [<a href="https://arxiv.org/pdf/2407.12450">pdf</a>, <a href="https://arxiv.org/format/2407.12450">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Interim report for the International Muon Collider Collaboration (IMCC) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">C. Accettura</a>, <a href="/search/physics?searchtype=author&query=Adrian%2C+S">S. Adrian</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">R. Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">C. Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A9%2C+C">C. Aim茅</a>, <a href="/search/physics?searchtype=author&query=Aksoy%2C+A">A. Aksoy</a>, <a href="/search/physics?searchtype=author&query=Alberghi%2C+G+L">G. L. Alberghi</a>, <a href="/search/physics?searchtype=author&query=Alden%2C+S">S. Alden</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">D. Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">P. Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">F. Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">R. Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">A. Apresyan</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">P. Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">M. Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Auchmann%2C+B">B. Auchmann</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">J. Back</a>, <a href="/search/physics?searchtype=author&query=Badea%2C+A">A. Badea</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+K+J">K. J. Bae</a>, <a href="/search/physics?searchtype=author&query=Bahng%2C+E+J">E. J. Bahng</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">L. Balconi</a>, <a href="/search/physics?searchtype=author&query=Balli%2C+F">F. Balli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Barbagallo%2C+C">C. Barbagallo</a> , et al. (362 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.12450v2-abstract-short" style="display: inline;"> The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. The Muon Collider Study (MuC) covers the accele… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12450v2-abstract-full').style.display = 'inline'; document.getElementById('2407.12450v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.12450v2-abstract-full" style="display: none;"> The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], hereinafter referred to as the the European LDG roadmap. The Muon Collider Study (MuC) covers the accelerator complex, detectors and physics for a future muon collider. In 2023, European Commission support was obtained for a design study of a muon collider (MuCol) [3]. This project started on 1st March 2023, with work-packages aligned with the overall muon collider studies. In preparation of and during the 2021-22 U.S. Snowmass process, the muon collider project parameters, technical studies and physics performance studies were performed and presented in great detail. Recently, the P5 panel [4] in the U.S. recommended a muon collider R&D, proposed to join the IMCC and envisages that the U.S. should prepare to host a muon collider, calling this their "muon shot". In the past, the U.S. Muon Accelerator Programme (MAP) [5] has been instrumental in studies of concepts and technologies for a muon collider. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12450v2-abstract-full').style.display = 'none'; document.getElementById('2407.12450v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">This document summarises the International Muon Collider Collaboration (IMCC) progress and status of the Muon Collider R&D programme</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.13790">arXiv:2405.13790</a> <span> [<a href="https://arxiv.org/pdf/2405.13790">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.3390/cryst12091263">10.3390/cryst12091263 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Bent Crystal Design and Characterization for High-Energy Physics Experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">Vincenzo Guidi</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">Davide De Salvador</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Sgarbossa%2C+F">Francesco Sgarbossa</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">Mattia Soldani</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">Melissa Tamisari</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.13790v1-abstract-short" style="display: inline;"> Bent crystal are widely used as optics for X-rays, but via the phenomenon of planar channeling they may act as waveguide for relativistic charged particles beam as well, outperforming some of the traditional technologies currently employed. A physical description of the phenomenon and the resulting potential for applications in a particle accelerator is reported. The elastic properties of the anis… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13790v1-abstract-full').style.display = 'inline'; document.getElementById('2405.13790v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.13790v1-abstract-full" style="display: none;"> Bent crystal are widely used as optics for X-rays, but via the phenomenon of planar channeling they may act as waveguide for relativistic charged particles beam as well, outperforming some of the traditional technologies currently employed. A physical description of the phenomenon and the resulting potential for applications in a particle accelerator is reported. The elastic properties of the anisotropic crystal lattice medium are discussed, introducing different types of curvature which can enable a wide array of bending schemes optimized for each different case features. The technological development of machining strategy and bending solutions useful for the fabrication of crystals suitable in high energy particle manipulations are described. As well as the high precision characterization processes developed in order to satisfy the strict requirements for installation in an accelerator. Finally, the characterization of channeling phenomenon in bent crystal is described, pointing out several experimental setups suitable to comply each specific case constrains. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13790v1-abstract-full').style.display = 'none'; document.getElementById('2405.13790v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Crystals, 12(9), 1263 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.08459">arXiv:2404.08459</a> <span> [<a href="https://arxiv.org/pdf/2404.08459">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Observation of Fine Structure in Channeling of Particles in Bent Crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Backe%2C+H">H. Backe</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Canale%2C+N">N. Canale</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Drexler%2C+P">P. Drexler</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Klag%2C+P">P. Klag</a>, <a href="/search/physics?searchtype=author&query=Lauth%2C+W">W. Lauth</a>, <a href="/search/physics?searchtype=author&query=Malagutti%2C+L">L. Malagutti</a>, <a href="/search/physics?searchtype=author&query=Negrello%2C+R">R. Negrello</a>, <a href="/search/physics?searchtype=author&query=Patern%C3%B2%2C+G">G. Patern貌</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Sgarbossa%2C+F">F. Sgarbossa</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Valzani%2C+D">D. Valzani</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.08459v1-abstract-short" style="display: inline;"> Using the newly developed 530 MeV positron beam from the Mainz Microtron MAMI and employing a bent silicon crystal, we demonstrate the first successful manipulation with high efficiencies of the trajectories of positrons through planar channeling and volume reflection. This uncovered the presence of fine structure within the angular distribution of charged particles when they are channeled between… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.08459v1-abstract-full').style.display = 'inline'; document.getElementById('2404.08459v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.08459v1-abstract-full" style="display: none;"> Using the newly developed 530 MeV positron beam from the Mainz Microtron MAMI and employing a bent silicon crystal, we demonstrate the first successful manipulation with high efficiencies of the trajectories of positrons through planar channeling and volume reflection. This uncovered the presence of fine structure within the angular distribution of charged particles when they are channeled between the planes of bent crystals. The alignment of our experimental findings with simulation results not only demonstrates a deeper understanding of the interactions between charged particle beams and bent crystals but also signals a new phase in the development of innovative methodologies for slow extraction in circular accelerators operating in the GeV range, with implications for worldwide accelerators. Our results also mark a considerable progression in the generation of advanced x-ray sources through the channeling process in periodically bent crystals, rooted in a comprehensive understanding of the interactions between positron beams and such crystals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.08459v1-abstract-full').style.display = 'none'; document.getElementById('2404.08459v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.03886">arXiv:2401.03886</a> <span> [<a href="https://arxiv.org/pdf/2401.03886">pdf</a>, <a href="https://arxiv.org/format/2401.03886">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168828">10.1016/j.nima.2023.168828 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Radiation in oriented crystals: Innovative application to future positron sources </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Soldani%2C+M">Mattia Soldani</a>, <a href="/search/physics?searchtype=author&query=Alharthi%2C+F">Fahad Alharthi</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Canale%2C+N">Nicola Canale</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">Gianluca Cavoto</a>, <a href="/search/physics?searchtype=author&query=Chaikovska%2C+I">Iryna Chaikovska</a>, <a href="/search/physics?searchtype=author&query=Chehab%2C+R">Robert Chehab</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">Vincenzo Guidi</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">Viktar Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Negrello%2C+R">Riccardo Negrello</a>, <a href="/search/physics?searchtype=author&query=Patern%C3%B2%2C+G">Gianfranco Patern貌</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">Victor Tikhomirov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.03886v1-abstract-short" style="display: inline;"> It has been known since decades that the alignment of a beam of high-energy electrons with particular crystal directions involves a significant increase of bremsstrahlung radiation emission. This enhancement lies at the conceptual foundation of innovative positron source schemes for future lepton colliders. In particular, the so-called hybrid scheme makes use of a heavy-metal radiator in crystalli… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.03886v1-abstract-full').style.display = 'inline'; document.getElementById('2401.03886v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.03886v1-abstract-full" style="display: none;"> It has been known since decades that the alignment of a beam of high-energy electrons with particular crystal directions involves a significant increase of bremsstrahlung radiation emission. This enhancement lies at the conceptual foundation of innovative positron source schemes for future lepton colliders. In particular, the so-called hybrid scheme makes use of a heavy-metal radiator in crystalline form, which is then followed by an amorphous metallic converter for positron generation from electrons by means of a two-step electromagnetic process. This work presents the most recent simulation results obtained on the development of a hybrid positron source for the FCC-$ee$ from the standpoint of the features of both the crystalline radiator and the amorphous converter. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.03886v1-abstract-full').style.display = 'none'; document.getElementById('2401.03886v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instrum. Methods Phys. Res. A 1058, 168828 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.14399">arXiv:2308.14399</a> <span> [<a href="https://arxiv.org/pdf/2308.14399">pdf</a>, <a href="https://arxiv.org/format/2308.14399">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-12714-9">10.1140/epjc/s10052-024-12714-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Low-energy spectrum of the BULLKID detector array operated on surface </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Delicato%2C+D">D. Delicato</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+A">A. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/physics?searchtype=author&query=Cappelli%2C+M">M. Cappelli</a>, <a href="/search/physics?searchtype=author&query=Del+Castello%2C+G">G. Del Castello</a>, <a href="/search/physics?searchtype=author&query=Roccagiovine%2C+M+d+G">M. del Gallo Roccagiovine</a>, <a href="/search/physics?searchtype=author&query=Giammei%2C+M">M. Giammei</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Maiello%2C+D">D. Maiello</a>, <a href="/search/physics?searchtype=author&query=Pettinacci%2C+V">V. Pettinacci</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a>, <a href="/search/physics?searchtype=author&query=Cruciani%2C+A">A. Cruciani</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Monfardini%2C+A">A. Monfardini</a>, <a href="/search/physics?searchtype=author&query=Vignati%2C+M">M. Vignati</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.14399v2-abstract-short" style="display: inline;"> We present the first continuous operation in a surface lab of BULLKID, a detector for searches of light Dark Matter and precision measurements of the coherent and elastic neutrino-nucleus scattering. The detector consists of an array of 60 cubic silicon particle absorbers of 0.34 g each, sensed by cryogenic kinetic inductance detectors. The data presented focusses on one of the central elements of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.14399v2-abstract-full').style.display = 'inline'; document.getElementById('2308.14399v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.14399v2-abstract-full" style="display: none;"> We present the first continuous operation in a surface lab of BULLKID, a detector for searches of light Dark Matter and precision measurements of the coherent and elastic neutrino-nucleus scattering. The detector consists of an array of 60 cubic silicon particle absorbers of 0.34 g each, sensed by cryogenic kinetic inductance detectors. The data presented focusses on one of the central elements of the array and on its surrounding elements used as veto. The energy spectrum resulting from an exposure of 39 hours to ambient backgrounds, obtained without radiation shields, is flat at the level of $(2.0\pm0.1\,{\rm stat.}\pm0.2\,{\rm syst.})\times10^6$ counts / keV kg days down to the energy threshold of $160\pm13$ eV. The data analysis demonstrates the unique capability of rejecting backgrounds generated from interactions in other sites of the array, stemming from the segmented and monolithic structure of the detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.14399v2-abstract-full').style.display = 'none'; document.getElementById('2308.14399v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 84 (2024) 353 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.08533">arXiv:2303.08533</a> <span> [<a href="https://arxiv.org/pdf/2303.08533">pdf</a>, <a href="https://arxiv.org/format/2303.08533">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Towards a Muon Collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Accettura%2C+C">Carlotta Accettura</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">Dean Adams</a>, <a href="/search/physics?searchtype=author&query=Agarwal%2C+R">Rohit Agarwal</a>, <a href="/search/physics?searchtype=author&query=Ahdida%2C+C">Claudia Ahdida</a>, <a href="/search/physics?searchtype=author&query=Aim%C3%A8%2C+C">Chiara Aim猫</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">Nicola Amapane</a>, <a href="/search/physics?searchtype=author&query=Amorim%2C+D">David Amorim</a>, <a href="/search/physics?searchtype=author&query=Andreetto%2C+P">Paolo Andreetto</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">Fabio Anulli</a>, <a href="/search/physics?searchtype=author&query=Appleby%2C+R">Robert Appleby</a>, <a href="/search/physics?searchtype=author&query=Apresyan%2C+A">Artur Apresyan</a>, <a href="/search/physics?searchtype=author&query=Apyan%2C+A">Aram Apyan</a>, <a href="/search/physics?searchtype=author&query=Arsenyev%2C+S">Sergey Arsenyev</a>, <a href="/search/physics?searchtype=author&query=Asadi%2C+P">Pouya Asadi</a>, <a href="/search/physics?searchtype=author&query=Mahmoud%2C+M+A">Mohammed Attia Mahmoud</a>, <a href="/search/physics?searchtype=author&query=Azatov%2C+A">Aleksandr Azatov</a>, <a href="/search/physics?searchtype=author&query=Back%2C+J">John Back</a>, <a href="/search/physics?searchtype=author&query=Balconi%2C+L">Lorenzo Balconi</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Barlow%2C+R">Roger Barlow</a>, <a href="/search/physics?searchtype=author&query=Bartosik%2C+N">Nazar Bartosik</a>, <a href="/search/physics?searchtype=author&query=Barzi%2C+E">Emanuela Barzi</a>, <a href="/search/physics?searchtype=author&query=Batsch%2C+F">Fabian Batsch</a>, <a href="/search/physics?searchtype=author&query=Bauce%2C+M">Matteo Bauce</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+J+S">J. Scott Berg</a> , et al. (272 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2303.08533v2-abstract-short" style="display: inline;"> A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders desi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08533v2-abstract-full').style.display = 'inline'; document.getElementById('2303.08533v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.08533v2-abstract-full" style="display: none;"> A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08533v2-abstract-full').style.display = 'none'; document.getElementById('2303.08533v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">118 pages, 103 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.04385">arXiv:2303.04385</a> <span> [<a href="https://arxiv.org/pdf/2303.04385">pdf</a>, <a href="https://arxiv.org/ps/2303.04385">ps</a>, <a href="https://arxiv.org/format/2303.04385">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s40042-023-00834-6">10.1007/s40042-023-00834-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Geant4 simulation model of electromagnetic processes in oriented crystals for accelerator physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Cho%2C+K">Kihyeon Cho</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+S">Soonwook Hwang</a>, <a href="/search/physics?searchtype=author&query=Cirrone%2C+G+A+P">Giuseppe Antonio Pablo Cirrone</a>, <a href="/search/physics?searchtype=author&query=Pandola%2C+L">Luciano Pandola</a>, <a href="/search/physics?searchtype=author&query=Guatelli%2C+S">Susanna Guatelli</a>, <a href="/search/physics?searchtype=author&query=Rosenfeld%2C+A">Anatoly Rosenfeld</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">Viktar Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">Victor Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Ivanchenko%2C+V">Vladimir Ivanchenko</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2303.04385v3-abstract-short" style="display: inline;"> Electromagnetic processes of charged particles interaction with oriented crystals provide a wide variety of innovative applications such as beam steering, crystal-based extraction/collimation of leptons and hadrons in an accelerator, a fixed-target experiment on magnetic and electric dipole moment measurement, X-ray and gamma radiation source for radiotherapy and nuclear physics and a positron sou… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.04385v3-abstract-full').style.display = 'inline'; document.getElementById('2303.04385v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.04385v3-abstract-full" style="display: none;"> Electromagnetic processes of charged particles interaction with oriented crystals provide a wide variety of innovative applications such as beam steering, crystal-based extraction/collimation of leptons and hadrons in an accelerator, a fixed-target experiment on magnetic and electric dipole moment measurement, X-ray and gamma radiation source for radiotherapy and nuclear physics and a positron source for lepton and muon colliders, a compact crystalline calorimeter as well as plasma acceleration in the crystal media. One of the main challenges is to develop an up-to-date, universal and fast simulation tool to simulate these applications. We present a new simulation model of electromagnetic processes in oriented crystals implemented into Geant4, which is a toolkit for the simulation of the passage of particles through matter. We validate the model with the experimental data as well as discuss the advantages and perspectives of this model for the applications of oriented crystals mentioned above. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.04385v3-abstract-full').style.display = 'none'; document.getElementById('2303.04385v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.16586">arXiv:2211.16586</a> <span> [<a href="https://arxiv.org/pdf/2211.16586">pdf</a>, <a href="https://arxiv.org/format/2211.16586">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> HIKE, High Intensity Kaon Experiments at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gil%2C+E+C">E. Cortina Gil</a>, <a href="/search/physics?searchtype=author&query=Jerhot%2C+J">J. Jerhot</a>, <a href="/search/physics?searchtype=author&query=Lurkin%2C+N">N. Lurkin</a>, <a href="/search/physics?searchtype=author&query=Numao%2C+T">T. Numao</a>, <a href="/search/physics?searchtype=author&query=Velghe%2C+B">B. Velghe</a>, <a href="/search/physics?searchtype=author&query=Wong%2C+V+W+S">V. W. S. Wong</a>, <a href="/search/physics?searchtype=author&query=Bryman%2C+D">D. Bryman</a>, <a href="/search/physics?searchtype=author&query=Bician%2C+L">L. Bician</a>, <a href="/search/physics?searchtype=author&query=Hives%2C+Z">Z. Hives</a>, <a href="/search/physics?searchtype=author&query=Husek%2C+T">T. Husek</a>, <a href="/search/physics?searchtype=author&query=Kampf%2C+K">K. Kampf</a>, <a href="/search/physics?searchtype=author&query=Koval%2C+M">M. Koval</a>, <a href="/search/physics?searchtype=author&query=Akmete%2C+A+T">A. T. Akmete</a>, <a href="/search/physics?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/physics?searchtype=author&query=B%C3%BCscher%2C+V">V. B眉scher</a>, <a href="/search/physics?searchtype=author&query=Di+Lella%2C+L">L. Di Lella</a>, <a href="/search/physics?searchtype=author&query=Doble%2C+N">N. Doble</a>, <a href="/search/physics?searchtype=author&query=Peruzzo%2C+L">L. Peruzzo</a>, <a href="/search/physics?searchtype=author&query=Schott%2C+M">M. Schott</a>, <a href="/search/physics?searchtype=author&query=Wahl%2C+H">H. Wahl</a>, <a href="/search/physics?searchtype=author&query=Wanke%2C+R">R. Wanke</a>, <a href="/search/physics?searchtype=author&query=D%C3%B6brich%2C+B">B. D枚brich</a>, <a href="/search/physics?searchtype=author&query=Montalto%2C+L">L. Montalto</a>, <a href="/search/physics?searchtype=author&query=Rinaldi%2C+D">D. Rinaldi</a>, <a href="/search/physics?searchtype=author&query=Dettori%2C+F">F. Dettori</a> , et al. (154 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.16586v1-abstract-short" style="display: inline;"> A timely and long-term programme of kaon decay measurements at a new level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). The proposed programme is firmly anchored on the experience built up studying kaon decays at the SPS over the past four decades, and includes rare processes, CP violation, dark sectors, symmetry tests and other tests of the St… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.16586v1-abstract-full').style.display = 'inline'; document.getElementById('2211.16586v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.16586v1-abstract-full" style="display: none;"> A timely and long-term programme of kaon decay measurements at a new level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). The proposed programme is firmly anchored on the experience built up studying kaon decays at the SPS over the past four decades, and includes rare processes, CP violation, dark sectors, symmetry tests and other tests of the Standard Model. The experimental programme is based on a staged approach involving experiments with charged and neutral kaon beams, as well as operation in beam-dump mode. The various phases will rely on a common infrastructure and set of detectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.16586v1-abstract-full').style.display = 'none'; document.getElementById('2211.16586v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Letter of Intent submitted to CERN SPSC. Address all correspondence to hike-eb@cern.ch</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-SPSC-2022-031/SPSC-I-257 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.14806">arXiv:2209.14806</a> <span> [<a href="https://arxiv.org/pdf/2209.14806">pdf</a>, <a href="https://arxiv.org/format/2209.14806">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0128723">10.1063/5.0128723 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> BULLKID: Monolithic array of particle absorbers sensed by Kinetic Inductance Detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cruciani%2C+A">A. Cruciani</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Colantoni%2C+I">I. Colantoni</a>, <a href="/search/physics?searchtype=author&query=Del+Castello%2C+G">G. Del Castello</a>, <a href="/search/physics?searchtype=author&query=Roccagiovine%2C+M+d+G">M. del Gallo Roccagiovine</a>, <a href="/search/physics?searchtype=author&query=Delicato%2C+D">D. Delicato</a>, <a href="/search/physics?searchtype=author&query=Giammei%2C+M">M. Giammei</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Goupy%2C+J">J. Goupy</a>, <a href="/search/physics?searchtype=author&query=Pettinacci%2C+V">V. Pettinacci</a>, <a href="/search/physics?searchtype=author&query=Pettinari%2C+G">G. Pettinari</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Monfardini%2C+A">A. Monfardini</a>, <a href="/search/physics?searchtype=author&query=Vignati%2C+M">M. Vignati</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.14806v1-abstract-short" style="display: inline;"> We introduce BULLKID, an innovative phonon detector consisting of an array of dices acting as particle absorbers sensed by multiplexed Kinetic Inductance Detectors (KIDs). The dices are carved in a thick crystalline wafer and form a monolithic structure. The carvings leave a thin common disk intact in the wafer, acting both as holder for the dices and as substrate for the KID lithography. The prot… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.14806v1-abstract-full').style.display = 'inline'; document.getElementById('2209.14806v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.14806v1-abstract-full" style="display: none;"> We introduce BULLKID, an innovative phonon detector consisting of an array of dices acting as particle absorbers sensed by multiplexed Kinetic Inductance Detectors (KIDs). The dices are carved in a thick crystalline wafer and form a monolithic structure. The carvings leave a thin common disk intact in the wafer, acting both as holder for the dices and as substrate for the KID lithography. The prototype presented consists of an array of 64 dices of 5.4x5.4x5 mm$^3$ carved in a 3" diameter, 5 mm thick silicon wafer, with a common disk 0.5 mm thick hosting a 60 nm patterned aluminum layer. The resulting array is highly segmented but avoids the use of dedicated holding structures for each unit. Despite the fact that the uniformity of the KID electrical response across the array needs optimization, the operation of 8 units with similar features shows, on average, a baseline energy resolution of $26\pm7$ eV. This makes it a suitable detector for low-energy processes such as direct interactions of dark matter and coherent elastic neutrino-nucleus scattering. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.14806v1-abstract-full').style.display = 'none'; document.getElementById('2209.14806v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Appl. Phys. Lett. 121 (2022) 213504 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.05496">arXiv:2207.05496</a> <span> [<a href="https://arxiv.org/pdf/2207.05496">pdf</a>, <a href="https://arxiv.org/format/2207.05496">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/2374/1/012112">10.1088/1742-6596/2374/1/012112 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A high-performance custom photodetection system to probe the light yield enhancement in oriented crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bomben%2C+L">L. Bomben</a>, <a href="/search/physics?searchtype=author&query=Brizzolari%2C+C">C. Brizzolari</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Salvador%2C+D+D">D. De. Salvador</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">V. Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Lutsenko%2C+E">E. Lutsenko</a>, <a href="/search/physics?searchtype=author&query=Maiolino%2C+T">T. Maiolino</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Ronchetti%2C+F">F. Ronchetti</a>, <a href="/search/physics?searchtype=author&query=Selmi%2C+A">A. Selmi</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2207.05496v1-abstract-short" style="display: inline;"> Scintillating homogeneous detectors represent the state of the art in electromagnetic calorimetry. Moreover, the currently neglected crystalline nature of the most common inorganic scintillators can be exploited to achieve an outstanding performance boost in terms of compactness and energy resolution. In fact, it was recently demonstrated by the AXIAL/ELIOT experiments that a strong reduction in t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.05496v1-abstract-full').style.display = 'inline'; document.getElementById('2207.05496v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.05496v1-abstract-full" style="display: none;"> Scintillating homogeneous detectors represent the state of the art in electromagnetic calorimetry. Moreover, the currently neglected crystalline nature of the most common inorganic scintillators can be exploited to achieve an outstanding performance boost in terms of compactness and energy resolution. In fact, it was recently demonstrated by the AXIAL/ELIOT experiments that a strong reduction in the radiation length inside PWO, and a subsequent enhancement in the scintillation light emitted per unit thickness, are attained when the incident particle trajectory is aligned with a crystal axis within $\sim 1^\circ$. A SiPM-based system has been developed to directly probe this remarkable effect by measuring the scintillation light emitted by a PWO sample. The same concept could be applied to full-scale detectors that would feature a design significantly more compact than currently achievable and unparalleled resolution in the range of interest for present and future experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.05496v1-abstract-full').style.display = 'none'; document.getElementById('2207.05496v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.07541">arXiv:2203.07541</a> <span> [<a href="https://arxiv.org/pdf/2203.07541">pdf</a>, <a href="https://arxiv.org/format/2203.07541">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-10666-6">10.1140/epjc/s10052-022-10666-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Crystal-based pair production for a lepton collider positron source </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bomben%2C+L">L. Bomben</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Chaikovska%2C+I">I. Chaikovska</a>, <a href="/search/physics?searchtype=author&query=Chehab%2C+R">R. Chehab</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">V. Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Lutsenko%2C+E">E. Lutsenko</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Ronchetti%2C+F">F. Ronchetti</a>, <a href="/search/physics?searchtype=author&query=Sgarbossa%2C+F">F. Sgarbossa</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.07541v1-abstract-short" style="display: inline;"> An intense positron sources is a demanding element in the design of future lepton colliders. A crystal-based hybrid positron source could be an alternative to a more conventional scheme based on the electron conversion into positron in a thick amorphous target. The conceptual idea of the hybrid source is to have two separate objects, a photon radiator and a photon-to-positron converter target. In… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07541v1-abstract-full').style.display = 'inline'; document.getElementById('2203.07541v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.07541v1-abstract-full" style="display: none;"> An intense positron sources is a demanding element in the design of future lepton colliders. A crystal-based hybrid positron source could be an alternative to a more conventional scheme based on the electron conversion into positron in a thick amorphous target. The conceptual idea of the hybrid source is to have two separate objects, a photon radiator and a photon-to-positron converter target. In such a scheme an electron beam crosses a thin axially oriented crystal with the emission of a channeling radiation, characterized by a considerably larger amount of photons if compared to Bremsstrahlung. The net result is an increase in the number of produced positrons at the converter target. In this paper we present the results of a beam test conducted at the DESY TB 21 with 5.6 GeV electron beam and a crystalline tungsten radiator. Experimental data clearly highlight an increased production of photons and they are critically compared with the outcomes of novel method to simulate the number of radiated photons, showing a very good agreement. Strong of this, the developed simulation tool has been exploited to design a simple scheme for a positron source based on oriented crystal, demonstrating the advantages in terms of reduction of both deposited energy and the peak energy deposition density if compared to conventional sources. The presented work opens the way for a realistic and detailed design of a hybrid crystal-based positron source for future lepton colliders. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07541v1-abstract-full').style.display = 'none'; document.getElementById('2203.07541v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.07459">arXiv:2203.07459</a> <span> [<a href="https://arxiv.org/pdf/2203.07459">pdf</a>, <a href="https://arxiv.org/format/2203.07459">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/18/11/P11008">10.1088/1748-0221/18/11/P11008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Channeling Acceleration in Crystals and Nanostructures and Studies of Solid Plasmas: New Opportunities </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gilljohann%2C+M+F">Max F. Gilljohann</a>, <a href="/search/physics?searchtype=author&query=Mankovska%2C+Y">Yuliia Mankovska</a>, <a href="/search/physics?searchtype=author&query=Claveria%2C+P+S+M">Pablo San Miguel Claveria</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">Alexei Sytov</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Ariniello%2C+R">Robert Ariniello</a>, <a href="/search/physics?searchtype=author&query=Davoine%2C+X">Xavier Davoine</a>, <a href="/search/physics?searchtype=author&query=Ekerfelt%2C+H">Henrik Ekerfelt</a>, <a href="/search/physics?searchtype=author&query=Fiuza%2C+F">Frederico Fiuza</a>, <a href="/search/physics?searchtype=author&query=Gremillet%2C+L">Laurent Gremillet</a>, <a href="/search/physics?searchtype=author&query=Knetsch%2C+A">Alexander Knetsch</a>, <a href="/search/physics?searchtype=author&query=Martinez%2C+B">Bertrand Martinez</a>, <a href="/search/physics?searchtype=author&query=Matheron%2C+A">Aim茅 Matheron</a>, <a href="/search/physics?searchtype=author&query=Piekarz%2C+H">Henryk Piekarz</a>, <a href="/search/physics?searchtype=author&query=Storey%2C+D">Doug Storey</a>, <a href="/search/physics?searchtype=author&query=Taborek%2C+P">Peter Taborek</a>, <a href="/search/physics?searchtype=author&query=Tajima%2C+T">Toshiki Tajima</a>, <a href="/search/physics?searchtype=author&query=Shiltsev%2C+V">Vladimir Shiltsev</a>, <a href="/search/physics?searchtype=author&query=Corde%2C+S">S茅bastien Corde</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.07459v2-abstract-short" style="display: inline;"> Plasma wakefield acceleration (PWFA) has shown illustrious progress and resulted in an impressive demonstration of tens of GeV particle acceleration in meter-long single structures. To reach even higher energies in the 1 TeV to 10 TeV range, a promising scheme is channeling acceleration in solid-density plasmas within crystals or nanostructures. The E336 experiment studies the beam-nanotarget in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07459v2-abstract-full').style.display = 'inline'; document.getElementById('2203.07459v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.07459v2-abstract-full" style="display: none;"> Plasma wakefield acceleration (PWFA) has shown illustrious progress and resulted in an impressive demonstration of tens of GeV particle acceleration in meter-long single structures. To reach even higher energies in the 1 TeV to 10 TeV range, a promising scheme is channeling acceleration in solid-density plasmas within crystals or nanostructures. The E336 experiment studies the beam-nanotarget interaction with the highly compressed electron bunches available at the FACET-II accelerator. These studies furthermore involve an in-depth research on dynamics of beam-plasma instabilities in ultra-dense plasma, its development and suppression in structured media like carbon nanotubes and crystals, and its potential use to transversely modulate the electron bunch. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07459v2-abstract-full').style.display = 'none'; document.getElementById('2203.07459v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">submitted to Snowmass'2021 Accelerator Frontier (AF6), 16 pages, 9 Figs</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 18 P11008 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.04939">arXiv:2202.04939</a> <span> [<a href="https://arxiv.org/pdf/2202.04939">pdf</a>, <a href="https://arxiv.org/format/2202.04939">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/17/05/P05015">10.1088/1748-0221/17/05/P05015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Positron sources: from conventional to advanced accelerator concepts-based colliders </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chaikovska%2C+I">I. Chaikovska</a>, <a href="/search/physics?searchtype=author&query=Chehab%2C+R">R. Chehab</a>, <a href="/search/physics?searchtype=author&query=Kubytskyi%2C+V">V. Kubytskyi</a>, <a href="/search/physics?searchtype=author&query=Ogur%2C+S">S. Ogur</a>, <a href="/search/physics?searchtype=author&query=Ushakov%2C+A">A. Ushakov</a>, <a href="/search/physics?searchtype=author&query=Variola%2C+A">A. Variola</a>, <a href="/search/physics?searchtype=author&query=Sievers%2C+P">P. Sievers</a>, <a href="/search/physics?searchtype=author&query=Musumeci%2C+P">P. Musumeci</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Enomoto%2C+Y">Y. Enomoto</a>, <a href="/search/physics?searchtype=author&query=Hogan%2C+M+J">Mark J. Hogan</a>, <a href="/search/physics?searchtype=author&query=Martyshkin%2C+P">P. Martyshkin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.04939v2-abstract-short" style="display: inline;"> Positron sources are the key elements for the future and current lepton collider projects such as ILC, CLIC, SuperKEKB, FCC-ee, Muon Collider/LEMMA, etc., introducing challenging critical requirements for high intensity and low emittance beams in order to achieve high luminosity. In fact, due to their large production emittance and constraints given by the target thermal load, the main collider pa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04939v2-abstract-full').style.display = 'inline'; document.getElementById('2202.04939v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.04939v2-abstract-full" style="display: none;"> Positron sources are the key elements for the future and current lepton collider projects such as ILC, CLIC, SuperKEKB, FCC-ee, Muon Collider/LEMMA, etc., introducing challenging critical requirements for high intensity and low emittance beams in order to achieve high luminosity. In fact, due to their large production emittance and constraints given by the target thermal load, the main collider parameters such as the peak and average current, the emittances, the damping time, the repetition frequency and consequently the luminosity are determined by the positron beam characteristics. In this paper, the conventional positron sources and their main properties are explored for giving an indication to the challenges that apply during the design of the advanced accelerator concepts. The photon-driven positron sources as the novel approach proposed, primarily for the future linear colliders, are described highlighting their variety and problematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04939v2-abstract-full').style.display = 'none'; document.getElementById('2202.04939v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.09655">arXiv:2201.09655</a> <span> [<a href="https://arxiv.org/pdf/2201.09655">pdf</a>, <a href="https://arxiv.org/ps/2201.09655">ps</a>, <a href="https://arxiv.org/format/2201.09655">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> Multiple scattering of channeled and non-channeled positively charged particles in bent monocrystalline silicon </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Scandale%2C+W">W. Scandale</a>, <a href="/search/physics?searchtype=author&query=Arduini%2C+G">G. Arduini</a>, <a href="/search/physics?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/physics?searchtype=author&query=Esposito%2C+L+S">L. S. Esposito</a>, <a href="/search/physics?searchtype=author&query=Garattini%2C+M">M. Garattini</a>, <a href="/search/physics?searchtype=author&query=Gilardoni%2C+S">S. Gilardoni</a>, <a href="/search/physics?searchtype=author&query=Losito%2C+R">R. Losito</a>, <a href="/search/physics?searchtype=author&query=Masi%2C+A">A. Masi</a>, <a href="/search/physics?searchtype=author&query=Mirarchi%2C+D">D. Mirarchi</a>, <a href="/search/physics?searchtype=author&query=Montesano%2C+S">S. Montesano</a>, <a href="/search/physics?searchtype=author&query=Redaelli%2C+S">S. Redaelli</a>, <a href="/search/physics?searchtype=author&query=Rossi%2C+R">R. Rossi</a>, <a href="/search/physics?searchtype=author&query=Smirnov%2C+G">G. Smirnov</a>, <a href="/search/physics?searchtype=author&query=Burmistrov%2C+L">L. Burmistrov</a>, <a href="/search/physics?searchtype=author&query=Dubos%2C+S">S. Dubos</a>, <a href="/search/physics?searchtype=author&query=Puill%2C+V">V. Puill</a>, <a href="/search/physics?searchtype=author&query=Stocchi%2C+A">A. Stocchi</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Murtas%2C+F">F. Murtas</a>, <a href="/search/physics?searchtype=author&query=Addesa%2C+F">F. Addesa</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Iacoangeli%2C+F">F. Iacoangeli</a> , et al. (17 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2201.09655v2-abstract-short" style="display: inline;"> We present the results of an experimental study of multiple scattering of positively charged high energy particles in bent samples of monocrystalline silicon. This work confirms the recently discovered effect of a strong reduction in the rms multiple scattering angle of particles channeled in the silicon (111) plane. The effect is observed in the plane orthogonal to the bending plane. We show in d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.09655v2-abstract-full').style.display = 'inline'; document.getElementById('2201.09655v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.09655v2-abstract-full" style="display: none;"> We present the results of an experimental study of multiple scattering of positively charged high energy particles in bent samples of monocrystalline silicon. This work confirms the recently discovered effect of a strong reduction in the rms multiple scattering angle of particles channeled in the silicon (111) plane. The effect is observed in the plane orthogonal to the bending plane. We show in detail the influence of angular constraints on the magnitude of the effect. Comparison of the multiple scattering process at different energies indicates a violation of the law of inverse proportionality of the rms angle of channeled particles with energy. By increasing the statistics, we have improved the results of multiple scattering measurements for particles moving, but not channeled, in silicon crystals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.09655v2-abstract-full').style.display = 'none'; document.getElementById('2201.09655v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: text overlap with arXiv:1910.00250 minor fixes</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2110.10102">arXiv:2110.10102</a> <span> [<a href="https://arxiv.org/pdf/2110.10102">pdf</a>, <a href="https://arxiv.org/ps/2110.10102">ps</a>, <a href="https://arxiv.org/format/2110.10102">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Other Condensed Matter">cond-mat.other</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-10115-4">10.1140/epjc/s10052-022-10115-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First design of a crystal-based extraction of 6 GeV electrons for the DESY II Booster Synchrotron </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Kube%2C+G">G. Kube</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Cirrone%2C+P">P. Cirrone</a>, <a href="/search/physics?searchtype=author&query=Ehrlichmann%2C+H">H. Ehrlichmann</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">V. Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Stanitzki%2C+M">M. Stanitzki</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V">V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Wittenburg%2C+K">K. Wittenburg</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2110.10102v4-abstract-short" style="display: inline;"> A proof-of-principle experimental setup for the extraction of 6 GeV electrons from the DESY II Booster Synchrotron using the channeling effect in a bent crystal is elaborated. Various aspects of the experimental setup were investigated in detail, such as the particle beam dynamics during the extraction process, the manufacturing and characterization of bent crystals, and the detection of the extra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10102v4-abstract-full').style.display = 'inline'; document.getElementById('2110.10102v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.10102v4-abstract-full" style="display: none;"> A proof-of-principle experimental setup for the extraction of 6 GeV electrons from the DESY II Booster Synchrotron using the channeling effect in a bent crystal is elaborated. Various aspects of the experimental setup were investigated in detail, such as the particle beam dynamics during the extraction process, the manufacturing and characterization of bent crystals, and the detection of the extracted beam. In order to optimize the crystal geometry, the overall process of beam extraction was simulated, taking into account the influence of radiation energy losses. As result it is concluded that the multi-turn electron beam extraction efficiency can reach up to 16 %. In principle this crystal-based beam extraction technique can be applied at any electron synchrotron in order to provide multi-GeV electron beams in a parasitic mode. This technique will allow to supply fixed-target experiments by intense high-quality monoenergetic electron beams. Furthermore, electron/positron crystal-based extraction from future lepton colliders may provide an access to unique experimental conditions for ultra-high energy fixed-target experiments including searches for new physics beyond the Standard Model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.10102v4-abstract-full').style.display = 'none'; document.getElementById('2110.10102v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.12624">arXiv:2105.12624</a> <span> [<a href="https://arxiv.org/pdf/2105.12624">pdf</a>, <a href="https://arxiv.org/format/2105.12624">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2021.166129">10.1016/j.nima.2021.166129 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Muon detection in electron-positron annihilation for muon collider studies </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">F. Anulli</a>, <a href="/search/physics?searchtype=author&query=Ballerini%2C+G">G. Ballerini</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bartosik%2C+N">N. Bartosik</a>, <a href="/search/physics?searchtype=author&query=Bauce%2C+M">M. Bauce</a>, <a href="/search/physics?searchtype=author&query=Bertolin%2C+A">A. Bertolin</a>, <a href="/search/physics?searchtype=author&query=Biino%2C+C">C. Biino</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+O+R+B">O. R. Blanco- Garcia</a>, <a href="/search/physics?searchtype=author&query=Boscolo%2C+M">M. Boscolo</a>, <a href="/search/physics?searchtype=author&query=Brizzolari%2C+C">C. Brizzolari</a>, <a href="/search/physics?searchtype=author&query=Cappati%2C+A">A. Cappati</a>, <a href="/search/physics?searchtype=author&query=Casaburo%2C+F">F. Casaburo</a>, <a href="/search/physics?searchtype=author&query=Casarsa%2C+M">M. Casarsa</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Cesarini%2C+G">G. Cesarini</a>, <a href="/search/physics?searchtype=author&query=Collamati%2C+F">F. Collamati</a>, <a href="/search/physics?searchtype=author&query=Cotto%2C+G">G. Cotto</a>, <a href="/search/physics?searchtype=author&query=Curatolo%2C+C">C. Curatolo</a>, <a href="/search/physics?searchtype=author&query=Di+Nardo%2C+R">R. Di Nardo</a>, <a href="/search/physics?searchtype=author&query=Gonella%2C+F">F. Gonella</a>, <a href="/search/physics?searchtype=author&query=Hoh%2C+S">S. Hoh</a>, <a href="/search/physics?searchtype=author&query=Iafrati%2C+M">M. Iafrati</a>, <a href="/search/physics?searchtype=author&query=Iacoangeli%2C+F">F. Iacoangeli</a> , et al. (21 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2105.12624v4-abstract-short" style="display: inline;"> The investigation of the energy frontier in physics requires novel concepts for future colliders. The idea of a muon collider is very appealing since it would allow to study particle collisions at up to tens of TeV energy, while offering a cleaner experimental environment with respect to hadronic colliders. One key element in the muon collider design is the low-emittance muon production. Recently,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12624v4-abstract-full').style.display = 'inline'; document.getElementById('2105.12624v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.12624v4-abstract-full" style="display: none;"> The investigation of the energy frontier in physics requires novel concepts for future colliders. The idea of a muon collider is very appealing since it would allow to study particle collisions at up to tens of TeV energy, while offering a cleaner experimental environment with respect to hadronic colliders. One key element in the muon collider design is the low-emittance muon production. Recently,the Low EMittance Muon Accelerator (LEMMA) collaboration has explored the muon pair production close to its kinematic threshold by annihilating 45 GeV positrons with electrons in a low Z material target. In this configuration, muons are emerging from the target with a naturally low-emittance. In this paper we describe the performance of a system, to study this production mechanism, that consists in several segmented absorbers with alternating active layers composed of fast Cherenkov detectors together with a muon identification technique based on this detector. Passive layers were made of tungsten. We collected data corresponding to muon and electron beams produced at the H2 line in the North Area of the European Organization for Nuclear Research (CERN) in September 2018. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12624v4-abstract-full').style.display = 'none'; document.getElementById('2105.12624v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13283">arXiv:2011.13283</a> <span> [<a href="https://arxiv.org/pdf/2011.13283">pdf</a>, <a href="https://arxiv.org/format/2011.13283">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09021-y">10.1140/epjc/s10052-021-09021-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Investigation on steering of ultrarelativistic $e^{\pm}$ beam through an axially oriented bent crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Kyryllin%2C+I+V">I. V. Kyryllin</a>, <a href="/search/physics?searchtype=author&query=Brizzolari%2C+C">C. Brizzolari</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Charitonidis%2C+N">N. Charitonidis</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Shul%27ga%2C+N+F">N. F. Shul'ga</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13283v1-abstract-short" style="display: inline;"> An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. Analytic estimations and numerical simulations were compar… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13283v1-abstract-full').style.display = 'inline'; document.getElementById('2011.13283v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13283v1-abstract-full" style="display: none;"> An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. Analytic estimations and numerical simulations were compared with dedicated experiments at the H4 secondary beam line of SPS North Area, with 120 GeV/$c$ electrons and positrons. In the work presented in this article, the optimal orientations of the plane of bending of the crystal, which allow deflecting the largest number of charged particles using a bent crystal in axial orientation, were found. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13283v1-abstract-full').style.display = 'none'; document.getElementById('2011.13283v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.15582">arXiv:2006.15582</a> <span> [<a href="https://arxiv.org/pdf/2006.15582">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevResearch.3.013108">10.1103/PhysRevResearch.3.013108 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Silicon crystals for steering of high-intensity particle beams at ultra-high energy accelerators </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Baricordi%2C+S">S. Baricordi</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Casotti%2C+D">D. Casotti</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Carturan%2C+S">S. Carturan</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Balbo%2C+A">A. Balbo</a>, <a href="/search/physics?searchtype=author&query=Cruciani%2C+G">G. Cruciani</a>, <a href="/search/physics?searchtype=author&query=Trans%2C+T+N">Thu Nhi Trans</a>, <a href="/search/physics?searchtype=author&query=Verbeni%2C+R">R. Verbeni</a>, <a href="/search/physics?searchtype=author&query=Pastrone%2C+N">N. Pastrone</a>, <a href="/search/physics?searchtype=author&query=Lanzoni%2C+L">L. Lanzoni</a>, <a href="/search/physics?searchtype=author&query=Rossall%2C+A">A. Rossall</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+J+A+v+d">J. A. van den Berg</a>, <a href="/search/physics?searchtype=author&query=Jenkins%2C+R">R. Jenkins</a>, <a href="/search/physics?searchtype=author&query=Dumas%2C+P">P. Dumas</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.15582v1-abstract-short" style="display: inline;"> Experimental results and simulation models show that crystals might play a relevant role for the development of new generations of high-energy and high-intensity particle accelerators and might disclose innovative possibilities at existing ones. In this paper we describe the most advanced manufacturing techniques of crystals suitable for operations at ultra-high energy and ultra-high intensity par… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15582v1-abstract-full').style.display = 'inline'; document.getElementById('2006.15582v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.15582v1-abstract-full" style="display: none;"> Experimental results and simulation models show that crystals might play a relevant role for the development of new generations of high-energy and high-intensity particle accelerators and might disclose innovative possibilities at existing ones. In this paper we describe the most advanced manufacturing techniques of crystals suitable for operations at ultra-high energy and ultra-high intensity particle accelerators, reporting as an example of potential applications the collimation of the particle beams circulating in the Large Hadron Collider at CERN, which will be upgraded through the addition of bent crystals in the frame of the High Luminosity Large Hadron Collider project. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15582v1-abstract-full').style.display = 'none'; document.getElementById('2006.15582v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Research 3, 013108 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.12853">arXiv:2006.12853</a> <span> [<a href="https://arxiv.org/pdf/2006.12853">pdf</a>, <a href="https://arxiv.org/ps/2006.12853">ps</a>, <a href="https://arxiv.org/format/2006.12853">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-021-09071-2">10.1140/epjc/s10052-021-09071-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Investigation on radiation generated by Sub-GeV electrons in ultrashort Si and Ge bent crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Carturan%2C+S">S. Carturan</a>, <a href="/search/physics?searchtype=author&query=Durighello%2C+C">C. Durighello</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Klag%2C+P">P. Klag</a>, <a href="/search/physics?searchtype=author&query=Lauth%2C+W">W. Lauth</a>, <a href="/search/physics?searchtype=author&query=Maggioni%2C+G">G. Maggioni</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.12853v3-abstract-short" style="display: inline;"> We report on the measurements of the spectra of gamma radiation generated by 855 MeV electrons in bent silicon and germanium crystals at MAMI (MAinzer MIkrotron). The crystals were 15 渭m thick along the beam direction to ensure high deflection efficiency. Their (111) crystalline planes were bent by means of a piezo-actuated mechanical holder, which allowed to remotely change the crystal curvature.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.12853v3-abstract-full').style.display = 'inline'; document.getElementById('2006.12853v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.12853v3-abstract-full" style="display: none;"> We report on the measurements of the spectra of gamma radiation generated by 855 MeV electrons in bent silicon and germanium crystals at MAMI (MAinzer MIkrotron). The crystals were 15 渭m thick along the beam direction to ensure high deflection efficiency. Their (111) crystalline planes were bent by means of a piezo-actuated mechanical holder, which allowed to remotely change the crystal curvature. In such a way it was possible to investigate the radiation emitted under planar channeling and volume reflection as a function of the curvature of the crystalline planes. We show that using volume reflection, one can produce intense gamma radiation with comparable intensity but higher angular acceptance than for channeling. We studied the trade-off between radiation intensity and angular acceptance at different values of the crystal curvature. The measurements of radiation spectra have been carried out for the first time in bent Germanium crystals. In particular, the intensity of radiation in the Ge crystal is higher than in the Si one due to the higher atomic number, which is important for the development of the X-ray and gamma radiation sources based on higher-Z deformed crystals, such as crystalline undulator. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.12853v3-abstract-full').style.display = 'none'; document.getElementById('2006.12853v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.04138">arXiv:2005.04138</a> <span> [<a href="https://arxiv.org/pdf/2005.04138">pdf</a>, <a href="https://arxiv.org/ps/2005.04138">ps</a>, <a href="https://arxiv.org/format/2005.04138">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> </div> <p class="title is-5 mathjax"> MBN Explorer atomistic simulations of 855 MeV electron propagation and radiation emission in oriented silicon bent crystal: theory versus experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V+V">V. V. Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Leukovich%2C+A">A. Leukovich</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Sushko%2C+G+B">G. B. Sushko</a>, <a href="/search/physics?searchtype=author&query=Korol%2C+A+V">A. V. Korol</a>, <a href="/search/physics?searchtype=author&query=Solov%27yov%2C+A+V">A. V. Solov'yov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2005.04138v3-abstract-short" style="display: inline;"> The method of relativistic molecular dynamics is applied for accurate computational modelling and numerical analysis of the channelling phenomena for 855 MeV electrons in bent oriented silicon (111) crystal. Special attention is devoted to the transition from the axial channelling regime to the planar one in the course of the crystal rotation with respect to the incident beam. Distribution in the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04138v3-abstract-full').style.display = 'inline'; document.getElementById('2005.04138v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.04138v3-abstract-full" style="display: none;"> The method of relativistic molecular dynamics is applied for accurate computational modelling and numerical analysis of the channelling phenomena for 855 MeV electrons in bent oriented silicon (111) crystal. Special attention is devoted to the transition from the axial channelling regime to the planar one in the course of the crystal rotation with respect to the incident beam. Distribution in the deflection angle of electrons and spectral distribution of the radiation emitted are analysed in detail. The results of calculations are compared with the experimental data collected at the MAinzer MIctrotron (MAMI) facility. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.04138v3-abstract-full').style.display = 'none'; document.getElementById('2005.04138v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 16 figures, submitted to the European Physical Journal Plus (EPJ Plus)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.05781">arXiv:2002.05781</a> <span> [<a href="https://arxiv.org/pdf/2002.05781">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/13/04/C04006">10.1088/1748-0221/13/04/C04006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Innovative remotely-controlled bending device for thin silicon and germanium crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Carturan%2C+S">S. Carturan</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Durighello%2C+C">C. Durighello</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Klag%2C+P">P. Klag</a>, <a href="/search/physics?searchtype=author&query=Lauth%2C+W">W. Lauth</a>, <a href="/search/physics?searchtype=author&query=Maggioni%2C+G">G. Maggioni</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2002.05781v1-abstract-short" style="display: inline;"> Steering of negatively charged particle beams below 1 GeV has demonstrated to be possible with thin bent silicon and germanium crystals. A newly designed mechanical holder was used for bending crystals, since it allows a remotely-controlled adjustment of crystal bending and compensation of unwanted torsion. Bent crystals were installed and tested at the MAMI Mainz MIcrotron to achieve steering of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.05781v1-abstract-full').style.display = 'inline'; document.getElementById('2002.05781v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.05781v1-abstract-full" style="display: none;"> Steering of negatively charged particle beams below 1 GeV has demonstrated to be possible with thin bent silicon and germanium crystals. A newly designed mechanical holder was used for bending crystals, since it allows a remotely-controlled adjustment of crystal bending and compensation of unwanted torsion. Bent crystals were installed and tested at the MAMI Mainz MIcrotron to achieve steering of 0.855-GeV electrons at different bending radii. We report the description and characterization of the innovative bending device developed at INFN Laboratori Nazionali di Legnaro (LNL). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.05781v1-abstract-full').style.display = 'none'; document.getElementById('2002.05781v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 13 C04006 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.13716">arXiv:1909.13716</a> <span> [<a href="https://arxiv.org/pdf/1909.13716">pdf</a>, <a href="https://arxiv.org/format/1909.13716">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/01/P01036">10.1088/1748-0221/15/01/P01036 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of muon pair production from positron annihilation at threshold energy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+M">M. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anulli%2C+F">F. Anulli</a>, <a href="/search/physics?searchtype=author&query=Ballerini%2C+G">G. Ballerini</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bartosik%2C+N">N. Bartosik</a>, <a href="/search/physics?searchtype=author&query=Bauce%2C+M">M. Bauce</a>, <a href="/search/physics?searchtype=author&query=Bertolin%2C+A">A. Bertolin</a>, <a href="/search/physics?searchtype=author&query=Biino%2C+C">C. Biino</a>, <a href="/search/physics?searchtype=author&query=Blanco-Garcia%2C+O+R">O. R. Blanco-Garcia</a>, <a href="/search/physics?searchtype=author&query=Boscolo%2C+M">M. Boscolo</a>, <a href="/search/physics?searchtype=author&query=Brizzolari%2C+C">C. Brizzolari</a>, <a href="/search/physics?searchtype=author&query=Cappati%2C+A">A. Cappati</a>, <a href="/search/physics?searchtype=author&query=Casarsa%2C+M">M. Casarsa</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Collamati%2C+F">F. Collamati</a>, <a href="/search/physics?searchtype=author&query=Cotto%2C+G">G. Cotto</a>, <a href="/search/physics?searchtype=author&query=Curatolo%2C+C">C. Curatolo</a>, <a href="/search/physics?searchtype=author&query=Di+Nardo%2C+R">R. Di Nardo</a>, <a href="/search/physics?searchtype=author&query=Gonella%2C+F">F. Gonella</a>, <a href="/search/physics?searchtype=author&query=Hoh%2C+S">S. Hoh</a>, <a href="/search/physics?searchtype=author&query=Iafrati%2C+M">M. Iafrati</a>, <a href="/search/physics?searchtype=author&query=Iacoangeli%2C+F">F. Iacoangeli</a>, <a href="/search/physics?searchtype=author&query=Kiani%2C+B">B. Kiani</a>, <a href="/search/physics?searchtype=author&query=Lucchesi%2C+D">D. Lucchesi</a> , et al. (17 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1909.13716v2-abstract-short" style="display: inline;"> The muon collider represents one of the most promising solutions for a future machine exploring the high energy frontier, but several challenges due to the 2.2 $渭$sec muon lifetime at rest have to be carefully considered. The LEMMA project is investigating the possibility of producing low emittance muon/antimuon pairs from the e$^+$e$^-$ annihilation process at threshold energy, resulting in small… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.13716v2-abstract-full').style.display = 'inline'; document.getElementById('1909.13716v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.13716v2-abstract-full" style="display: none;"> The muon collider represents one of the most promising solutions for a future machine exploring the high energy frontier, but several challenges due to the 2.2 $渭$sec muon lifetime at rest have to be carefully considered. The LEMMA project is investigating the possibility of producing low emittance muon/antimuon pairs from the e$^+$e$^-$ annihilation process at threshold energy, resulting in small transverse emittance beams without any additional beam cooling. However most of the measurements available are performed at higher $\sqrt{s}$ values. It is therefore necessary to measure muons production in positron annihilation at threshold energy and compare the experimental results with the predictions in this specific energy regime. Apart from being a topic of physical interest by itself, these near to threshold measurements can have a sizeable impact on the estimation of the ultimate luminosity achievable in a muon collider with the LEMMA injection scheme. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.13716v2-abstract-full').style.display = 'none'; document.getElementById('1909.13716v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2020 JINST 15 P01036 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.07691">arXiv:1909.07691</a> <span> [<a href="https://arxiv.org/pdf/1909.07691">pdf</a>, <a href="https://arxiv.org/ps/1909.07691">ps</a>, <a href="https://arxiv.org/format/1909.07691">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-019-7586-6">10.1140/epjc/s10052-019-7586-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Broad angular anisotropy of multiple scattering in a Si crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Carturan%2C+S">S. Carturan</a>, <a href="/search/physics?searchtype=author&query=Durigello%2C+C">C. Durigello</a>, <a href="/search/physics?searchtype=author&query=Maggioni%2C+G">G. Maggioni</a>, <a href="/search/physics?searchtype=author&query=Campostrini%2C+M">M. Campostrini</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a>, <a href="/search/physics?searchtype=author&query=Lauth%2C+W">W. Lauth</a>, <a href="/search/physics?searchtype=author&query=Klag%2C+P">P. Klag</a>, <a href="/search/physics?searchtype=author&query=Tamisari%2C+M">M. Tamisari</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1909.07691v1-abstract-short" style="display: inline;"> We observed reduction of multiple Coulomb scattering of 855 MeV electrons within a Si crystalline plate w.r.t. an amorphous plate with the same mass thickness. The reduction owed to complete or partial suppression of the coherent part of multiple scattering in a crystal vs crystal orientation with the beam. Experimental data were collected at Mainz Mikrotron and critically compared to theoretical… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.07691v1-abstract-full').style.display = 'inline'; document.getElementById('1909.07691v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.07691v1-abstract-full" style="display: none;"> We observed reduction of multiple Coulomb scattering of 855 MeV electrons within a Si crystalline plate w.r.t. an amorphous plate with the same mass thickness. The reduction owed to complete or partial suppression of the coherent part of multiple scattering in a crystal vs crystal orientation with the beam. Experimental data were collected at Mainz Mikrotron and critically compared to theoretical predictions and Monte Carlo simulations. Our results highlighted maximal 7 % reduction of the r.m.s. scattering angle at certain beam alignment with the [100] crystal axes. However, partial reduction was recorded over a wide range of alignment of the electron beam with the crystal up to 15 deg. This evidence may be relevant to refine the modelling of multiple scattering in crystals for currently used software, which is interesting for detectors in nuclear, medical, high energy physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.07691v1-abstract-full').style.display = 'none'; document.getElementById('1909.07691v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 4 figures, submitted to the European Physical Journal C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.03099">arXiv:1901.03099</a> <span> [<a href="https://arxiv.org/pdf/1901.03099">pdf</a>, <a href="https://arxiv.org/format/1901.03099">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> KLEVER: An experiment to measure BR($K_L\to蟺^0谓\bar谓$) at the CERN SPS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ambrosino%2C+F">F. Ambrosino</a>, <a href="/search/physics?searchtype=author&query=Ammendola%2C+R">R. Ammendola</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Ayers%2C+K">K. Ayers</a>, <a href="/search/physics?searchtype=author&query=Badoni%2C+D">D. Badoni</a>, <a href="/search/physics?searchtype=author&query=Ballerini%2C+G">G. Ballerini</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/physics?searchtype=author&query=Biino%2C+C">C. Biino</a>, <a href="/search/physics?searchtype=author&query=Bomben%2C+L">L. Bomben</a>, <a href="/search/physics?searchtype=author&query=Bonaiuto%2C+V">V. Bonaiuto</a>, <a href="/search/physics?searchtype=author&query=Bradley%2C+A">A. Bradley</a>, <a href="/search/physics?searchtype=author&query=Brunetti%2C+M+B">M. B. Brunetti</a>, <a href="/search/physics?searchtype=author&query=Bucci%2C+F">F. Bucci</a>, <a href="/search/physics?searchtype=author&query=Cassese%2C+A">A. Cassese</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=Corvino%2C+M">M. Corvino</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Di+Filippo%2C+D">D. Di Filippo</a>, <a href="/search/physics?searchtype=author&query=van+Dijk%2C+M">M. van Dijk</a>, <a href="/search/physics?searchtype=author&query=Doble%2C+N">N. Doble</a>, <a href="/search/physics?searchtype=author&query=Fantechi%2C+R">R. Fantechi</a>, <a href="/search/physics?searchtype=author&query=Fedotov%2C+S">S. Fedotov</a>, <a href="/search/physics?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/physics?searchtype=author&query=Fontana%2C+F">F. Fontana</a> , et al. (53 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1901.03099v2-abstract-short" style="display: inline;"> Precise measurements of the branching ratios for the flavor-changing neutral current decays $K\to蟺谓\bar谓$ can provide unique constraints on CKM unitarity and, potentially, evidence for new physics. It is important to measure both decay modes, $K^+\to蟺^+谓\bar谓$ and $K_L\to蟺^0谓\bar谓$, since different new physics models affect the rates for each channel differently. The goal of the NA62 experiment at… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.03099v2-abstract-full').style.display = 'inline'; document.getElementById('1901.03099v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.03099v2-abstract-full" style="display: none;"> Precise measurements of the branching ratios for the flavor-changing neutral current decays $K\to蟺谓\bar谓$ can provide unique constraints on CKM unitarity and, potentially, evidence for new physics. It is important to measure both decay modes, $K^+\to蟺^+谓\bar谓$ and $K_L\to蟺^0谓\bar谓$, since different new physics models affect the rates for each channel differently. The goal of the NA62 experiment at the CERN SPS is to measure the BR for the charged channel to within 10%. For the neutral channel, the BR has never been measured. We are designing the KLEVER experiment to measure BR($K_L\to蟺^0谓\bar谓$) to $\sim$20% using a high-energy neutral beam at the CERN SPS starting in LHC Run 4. The boost from the high-energy beam facilitates the rejection of background channels such as $K_L\to蟺^0蟺^0$ by detection of the additional photons in the final state. On the other hand, the layout poses particular challenges for the design of the small-angle vetoes, which must reject photons from $K_L$ decays escaping through the beam exit amidst an intense background from soft photons and neutrons in the beam. Background from $螞\to n蟺^0$ decays in the beam must also be kept under control. We present findings from our design studies for the beamline and experiment, with an emphasis on the challenges faced and the potential sensitivity for the measurement of BR($K_L\to蟺^0谓\bar谓$). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.03099v2-abstract-full').style.display = 'none'; document.getElementById('1901.03099v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 4 figures. Submitted as input to the 2020 update of the European Strategy for Particle Physics. v2: Included authors unintentionally omitted in v1</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> KLEVER-PUB-18-02 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.10005">arXiv:1803.10005</a> <span> [<a href="https://arxiv.org/pdf/1803.10005">pdf</a>, <a href="https://arxiv.org/ps/1803.10005">ps</a>, <a href="https://arxiv.org/format/1803.10005">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.121.021603">10.1103/PhysRevLett.121.021603 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Strong reduction of the effective radiation length in an axially oriented scintillator crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Argiolas%2C+N">N. Argiolas</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Ballerini%2C+G">G. Ballerini</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Brizzolari%2C+C">C. Brizzolari</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Haurylavets%2C+V">V. Haurylavets</a>, <a href="/search/physics?searchtype=author&query=Mascagna%2C+V">V. Mascagna</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Soldani%2C+M">M. Soldani</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1803.10005v5-abstract-short" style="display: inline;"> We measured a considerable increase of the emitted radiation by 120 GeV/c electrons in an axially oriented lead tungstate scintillator crystal, if compared to the case in which the sample was not aligned with the beam direction. This enhancement resulted from the interaction of particles with the strong crystalline electromagnetic field. The data collected at the external lines of CERN SPS were cr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.10005v5-abstract-full').style.display = 'inline'; document.getElementById('1803.10005v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.10005v5-abstract-full" style="display: none;"> We measured a considerable increase of the emitted radiation by 120 GeV/c electrons in an axially oriented lead tungstate scintillator crystal, if compared to the case in which the sample was not aligned with the beam direction. This enhancement resulted from the interaction of particles with the strong crystalline electromagnetic field. The data collected at the external lines of CERN SPS were critically compared to Monte Carlo simulations based on the Baier Katkov quasiclassical method, highlighting a reduction of the scintillator radiation length by a factor of five in case of beam alignment with the [001] crystal axes. The observed effect opens the way to the realization of compact electromagnetic calorimeters/detectors based on oriented scintillator crystals in which the amount of material can be strongly reduced with respect to the state of the art. These devices could have relevant applications in fixed-target experiments as well as in satellite-borne gamma-telescopes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.10005v5-abstract-full').style.display = 'none'; document.getElementById('1803.10005v5-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 021603 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1802.00412">arXiv:1802.00412</a> <span> [<a href="https://arxiv.org/pdf/1802.00412">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Summary and Conclusions of the First DESY Test Beam User Workshop </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Arling%2C+J">Jan-Hendrik Arling</a>, <a href="/search/physics?searchtype=author&query=Amjad%2C+M+S">M. Sohail Amjad</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Behnke%2C+T">Ties Behnke</a>, <a href="/search/physics?searchtype=author&query=Dannheim%2C+D">Dominik Dannheim</a>, <a href="/search/physics?searchtype=author&query=Diener%2C+R">Ralf Diener</a>, <a href="/search/physics?searchtype=author&query=Dreyling-Eschweiler%2C+J">Jan Dreyling-Eschweiler</a>, <a href="/search/physics?searchtype=author&query=Ehrlichmann%2C+H">Heiko Ehrlichmann</a>, <a href="/search/physics?searchtype=author&query=Gerbershagen%2C+A">Andreas Gerbershagen</a>, <a href="/search/physics?searchtype=author&query=Gregor%2C+I">Ingrid-Maria Gregor</a>, <a href="/search/physics?searchtype=author&query=Hayrapetyan%2C+A">Avetik Hayrapetyan</a>, <a href="/search/physics?searchtype=author&query=Jansen%2C+H">Hendrik Jansen</a>, <a href="/search/physics?searchtype=author&query=Kaminski%2C+J">Jochen Kaminski</a>, <a href="/search/physics?searchtype=author&query=Kroll%2C+J">Jiri Kroll</a>, <a href="/search/physics?searchtype=author&query=Martinengo%2C+P">Paolo Martinengo</a>, <a href="/search/physics?searchtype=author&query=Meyners%2C+N">Norbert Meyners</a>, <a href="/search/physics?searchtype=author&query=M%C3%BCntz%2C+C">Christian M眉ntz</a>, <a href="/search/physics?searchtype=author&query=Poley%2C+L">Luise Poley</a>, <a href="/search/physics?searchtype=author&query=Schwenker%2C+B">Benjamin Schwenker</a>, <a href="/search/physics?searchtype=author&query=Stanitzki%2C+M">Marcel Stanitzki</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1802.00412v2-abstract-short" style="display: inline;"> On October 5/6, 2017, DESY hosted the first DESY Test Beam User Workshop [1] which took place in Hamburg. Fifty participants from different user communities, ranging from LHC (ALICE, ATLAS, CMS, LHCb) to FAIR (CBM, PANDA), DUNE, Belle-II, future linear colliders (ILC, CLIC) and generic detector R&D presented their experiences with the DESY II Test Beam Facility, their concrete plans for the upcomi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.00412v2-abstract-full').style.display = 'inline'; document.getElementById('1802.00412v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1802.00412v2-abstract-full" style="display: none;"> On October 5/6, 2017, DESY hosted the first DESY Test Beam User Workshop [1] which took place in Hamburg. Fifty participants from different user communities, ranging from LHC (ALICE, ATLAS, CMS, LHCb) to FAIR (CBM, PANDA), DUNE, Belle-II, future linear colliders (ILC, CLIC) and generic detector R&D presented their experiences with the DESY II Test Beam Facility, their concrete plans for the upcoming years and a first estimate of their needs for beam time in the long-term future beyond 2025. A special focus was also on additional improvements to the facility beyond its current capabilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.00412v2-abstract-full').style.display = 'none'; document.getElementById('1802.00412v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 May, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 18-019 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1709.01482">arXiv:1709.01482</a> <span> [<a href="https://arxiv.org/pdf/1709.01482">pdf</a>, <a href="https://arxiv.org/ps/1709.01482">ps</a>, <a href="https://arxiv.org/format/1709.01482">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-017-5456-7">10.1140/epjc/s10052-017-5456-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Steering of Sub-GeV electrons by ultrashort Si and Ge bent crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sytov%2C+A+I">A. I. Sytov</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Carturan%2C+S">S. Carturan</a>, <a href="/search/physics?searchtype=author&query=Durighello%2C+C">C. Durighello</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Klag%2C+P">P. Klag</a>, <a href="/search/physics?searchtype=author&query=Lauth%2C+W">W. Lauth</a>, <a href="/search/physics?searchtype=author&query=Maggioni%2C+G">G. Maggioni</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">M. Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1709.01482v1-abstract-short" style="display: inline;"> We report the observation of the steering of 855 MeV electrons by bent silicon and germanium crystals at the MAinzer MIkrotron. 15 $渭$m long crystals, bent along (111) planes, were exploited to investigate orientational coherent effects. By using a piezo-actuated mechanical holder, which allowed to remotely change the crystal curvature, it was possible to study the steering capability of planar ch… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.01482v1-abstract-full').style.display = 'inline'; document.getElementById('1709.01482v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1709.01482v1-abstract-full" style="display: none;"> We report the observation of the steering of 855 MeV electrons by bent silicon and germanium crystals at the MAinzer MIkrotron. 15 $渭$m long crystals, bent along (111) planes, were exploited to investigate orientational coherent effects. By using a piezo-actuated mechanical holder, which allowed to remotely change the crystal curvature, it was possible to study the steering capability of planar channeling and volume reflection vs. the curvature radius and the atomic number, Z. For silicon, the channeling efficiency exceeds 35 %, a record for negatively charged particles. This was possible due to the realization of a crystal with a thickness of the order of the dechanneling length. On the other hand, for germanium the efficiency is slightly below 10 % due to the stronger contribution of multiple scattering for a higher-Z material. Nevertheless this is the first evidence of negative beam steering by planar channeling in a Ge crystal. Having determined for the first time the dechanneling length, one may design a Ge crystal based on such knowledge providing nearly the same channeling efficiency of silicon. The presented results are relevant for crystal-based beam manipulation as well as for the generation of e.m. radiation in bent and periodically bent crystals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.01482v1-abstract-full').style.display = 'none'; document.getElementById('1709.01482v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 September, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures, submitted to Eur. Phys. J. C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.08483">arXiv:1708.08483</a> <span> [<a href="https://arxiv.org/pdf/1708.08483">pdf</a>, <a href="https://arxiv.org/format/1708.08483">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-017-5400-x">10.1140/epjc/s10052-017-5400-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Electromagnetic dipole moments of charged baryons with bent crystals at the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Cavoto%2C+G">G. Cavoto</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Henry%2C+L">L. Henry</a>, <a href="/search/physics?searchtype=author&query=Marangotto%2C+D">D. Marangotto</a>, <a href="/search/physics?searchtype=author&query=Vidal%2C+F+M">F. Martinez Vidal</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Merli%2C+A">A. Merli</a>, <a href="/search/physics?searchtype=author&query=Neri%2C+N">N. Neri</a>, <a href="/search/physics?searchtype=author&query=Vidal%2C+J+R">J. Ruiz Vidal</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1708.08483v3-abstract-short" style="display: inline;"> We propose a unique program of measurements of electric and magnetic dipole moments of charm, beauty and strange charged baryons at the LHC, based on the phenomenon of spin precession of channeled particles in bent crystals. Studies of crystal channeling and spin precession of positively- and negatively-charged particles are presented, along with feasibility studies and expected sensitivities for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.08483v3-abstract-full').style.display = 'inline'; document.getElementById('1708.08483v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.08483v3-abstract-full" style="display: none;"> We propose a unique program of measurements of electric and magnetic dipole moments of charm, beauty and strange charged baryons at the LHC, based on the phenomenon of spin precession of channeled particles in bent crystals. Studies of crystal channeling and spin precession of positively- and negatively-charged particles are presented, along with feasibility studies and expected sensitivities for the proposed experiment using a layout based on the LHCb detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.08483v3-abstract-full').style.display = 'none'; document.getElementById('1708.08483v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 13 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.08755">arXiv:1606.08755</a> <span> [<a href="https://arxiv.org/pdf/1606.08755">pdf</a>, <a href="https://arxiv.org/ps/1606.08755">ps</a>, <a href="https://arxiv.org/format/1606.08755">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-017-4642-y">10.1140/epjc/s10052-017-4642-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental evidence of independence of nuclear de-channeling length on the particle charge sign </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A+I">A. I. Sytov</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1606.08755v4-abstract-short" style="display: inline;"> Under coherent interactions, particles undergo correlated collisions with the crystal lattice and their motion result in confinement in the fields of atomic planes, i.e. particle channeling. Other than coherently interacting with the lattice, particles also suffer incoherent interactions with individual nuclei and may leave their bounded motion, i.e., they de-channel. This latter is the main limit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.08755v4-abstract-full').style.display = 'inline'; document.getElementById('1606.08755v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.08755v4-abstract-full" style="display: none;"> Under coherent interactions, particles undergo correlated collisions with the crystal lattice and their motion result in confinement in the fields of atomic planes, i.e. particle channeling. Other than coherently interacting with the lattice, particles also suffer incoherent interactions with individual nuclei and may leave their bounded motion, i.e., they de-channel. This latter is the main limiting factor for applications of coherent interactions in crystal-assisted particle steering. We experimentally investigated the nature of dechanneling of 120 GeV/c $e^{-}$ and $e^{+}$ in a bent silicon crystal at H4-SPS external line at CERN. We found out that while channeling efficiency differs significantly for $e^{-}$ ($2\pm2$ $\%$) and $e^{+}$ ($54\pm2$ $\%$), their nuclear dechanneling length is comparable, $(0.6\pm0.1)$ mm for $e^{-}$ and $(0.7\pm0.3)$ mm for $e^{+}$. The experimental proof of the equality of the nuclear dechanneling length for positrons and electrons is interpreted in terms of similar dynamics undergone by the channeled particles in the field of nuclei no matter of their charge. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.08755v4-abstract-full').style.display = 'none'; document.getElementById('1606.08755v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 January, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.04437">arXiv:1606.04437</a> <span> [<a href="https://arxiv.org/pdf/1606.04437">pdf</a>, <a href="https://arxiv.org/format/1606.04437">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-017-4694-z">10.1140/epjc/s10052-017-4694-z <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Influence of incoherent scattering on stochastic deflection of high-energy negative particle beams in bent crystals </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kirillin%2C+I+V">I. V. Kirillin</a>, <a href="/search/physics?searchtype=author&query=Shul%27ga%2C+N+F">N. F. Shul'ga</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1606.04437v1-abstract-short" style="display: inline;"> An investigation on stochastic deflection of high-energy negatively charged particles in a bent crystal was carried out. On the basis of analytical calculation and numerical simulation it was shown that it exists a maximum angle at which most of the beam is deflected. The existence of a maximum, which is taken in the correspondence of the optimal radius of curvature, is a novelty with respect to t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.04437v1-abstract-full').style.display = 'inline'; document.getElementById('1606.04437v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.04437v1-abstract-full" style="display: none;"> An investigation on stochastic deflection of high-energy negatively charged particles in a bent crystal was carried out. On the basis of analytical calculation and numerical simulation it was shown that it exists a maximum angle at which most of the beam is deflected. The existence of a maximum, which is taken in the correspondence of the optimal radius of curvature, is a novelty with respect to the case of positively charged particles, for which the deflection angle can be freely increased by increasing the crystal length. This difference has to be ascribed to the stronger contribution of incoherent scattering affecting the dynamics of negative particles that move closer to atomic nuclei and electrons. We therefore identified the ideal parameters for the exploitation of axial confinement for negatively charged particle beam manipulation in future high-energy accelerators, e.g., ILC or muon colliders. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.04437v1-abstract-full').style.display = 'none'; document.getElementById('1606.04437v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1511.03175">arXiv:1511.03175</a> <span> [<a href="https://arxiv.org/pdf/1511.03175">pdf</a>, <a href="https://arxiv.org/ps/1511.03175">ps</a>, <a href="https://arxiv.org/format/1511.03175">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-016-3899-x">10.1140/epjc/s10052-016-3899-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Relaxation of axially confined 400 GeV/c protons to planar channeling in a bent crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Sytov%2C+A">A. Sytov</a>, <a href="/search/physics?searchtype=author&query=Kirillin%2C+I+V">I. V. Kirillin</a>, <a href="/search/physics?searchtype=author&query=Shul%27ga%2C+N+F">N. F. Shul'ga</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Lietti%2C+D">D. Lietti</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1511.03175v1-abstract-short" style="display: inline;"> An investigation on the mechanism of relaxation of axially confined 400 GeV/c protons to planar channeling in a bent crystal was carried out at the extracted line H8 from CERN Super Proton Synchrotron. The experimental results were critically compared to computer simulations, showing a good agreement. We firmly individuated a necessary condition for the exploitation of axial confinement or its rel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.03175v1-abstract-full').style.display = 'inline'; document.getElementById('1511.03175v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1511.03175v1-abstract-full" style="display: none;"> An investigation on the mechanism of relaxation of axially confined 400 GeV/c protons to planar channeling in a bent crystal was carried out at the extracted line H8 from CERN Super Proton Synchrotron. The experimental results were critically compared to computer simulations, showing a good agreement. We firmly individuated a necessary condition for the exploitation of axial confinement or its relaxation for particle beam manipulation in high-energy accelerators. We demonstrated that with a short bent crystal, aligned with one of its main axis to the beam direction, it is possible to realize either a total beam steerer or a beam splitter with adjustable intensity. In particular, in the latter case, a complete relaxation from axial confinement to planar channeling takes place, resulting in beam splitting into the two strongest skew planar channels. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.03175v1-abstract-full').style.display = 'none'; document.getElementById('1511.03175v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.01831">arXiv:1505.01831</a> <span> [<a href="https://arxiv.org/pdf/1505.01831">pdf</a>, <a href="https://arxiv.org/ps/1505.01831">ps</a>, <a href="https://arxiv.org/format/1505.01831">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-016-3923-1">10.1140/epjc/s10052-016-3923-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Planar channeling and quasichanneling oscillations in a bent crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sytov%2C+A+I">A. I. Sytov</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1505.01831v2-abstract-short" style="display: inline;"> Particles passing through a crystal under planar channeling experience transverse oscillations in their motion. As channeled particles approach the atomic planes of a crystal, they are likely to be dechanneled. This effect was used in ion-beam analysis with MeV energy. We studied this effect in a bent crystal for positive and negative particles within a wide range of energies in sight of applicati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.01831v2-abstract-full').style.display = 'inline'; document.getElementById('1505.01831v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.01831v2-abstract-full" style="display: none;"> Particles passing through a crystal under planar channeling experience transverse oscillations in their motion. As channeled particles approach the atomic planes of a crystal, they are likely to be dechanneled. This effect was used in ion-beam analysis with MeV energy. We studied this effect in a bent crystal for positive and negative particles within a wide range of energies in sight of application of such crystals at accelerators. We found the conditions for the appearance or not of channeling oscillations. Indeed a new kind of oscillations, strictly related to the motion of over-barrier particles, i.e. quasichanneling particles, has been predicted. Such oscillations, named planar quasichanneling oscillations, possess a different nature than channeling oscillations. Through computer simulation, we studied this effect and provided a theoretical interpretation for them. We show that channeling oscillations can be observed only for positive particles while quasichanneling oscillations can exist for particles with either sign. The conditions for experimental observation of channeling and quasichanneling oscillations at existing accelerators with available crystal has been found and optimized. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.01831v2-abstract-full').style.display = 'none'; document.getElementById('1505.01831v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">25 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.0251">arXiv:1410.0251</a> <span> [<a href="https://arxiv.org/pdf/1410.0251">pdf</a>, <a href="https://arxiv.org/ps/1410.0251">ps</a>, <a href="https://arxiv.org/format/1410.0251">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-014-3114-x">10.1140/epjc/s10052-014-3114-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental evidence of planar channeling in a periodically bent crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bagli%2C+E">E. Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">L. Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bellucci%2C+V">V. Bellucci</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">A. Berra</a>, <a href="/search/physics?searchtype=author&query=Camattari%2C+R">R. Camattari</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">D. De Salvador</a>, <a href="/search/physics?searchtype=author&query=Germogli%2C+G">G. Germogli</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">V. Guidi</a>, <a href="/search/physics?searchtype=author&query=Lanzoni%2C+L">L. Lanzoni</a>, <a href="/search/physics?searchtype=author&query=Lietti%2C+D">D. Lietti</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">A. Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">M. Prest</a>, <a href="/search/physics?searchtype=author&query=Tikhomirov%2C+V+V">V. V. Tikhomirov</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">E. Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1410.0251v3-abstract-short" style="display: inline;"> The usage of a Crystalline Undulator (CU) has been identified as a promising solution for generating powerful and monochromatic $纬$-rays. A CU was fabricated at SSL through the grooving method, i.e., by the manufacturing of a series of periodical grooves on the major surfaces of a crystal. The CU was extensively characterized both morphologically via optical interferometry at SSL and structurally… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.0251v3-abstract-full').style.display = 'inline'; document.getElementById('1410.0251v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.0251v3-abstract-full" style="display: none;"> The usage of a Crystalline Undulator (CU) has been identified as a promising solution for generating powerful and monochromatic $纬$-rays. A CU was fabricated at SSL through the grooving method, i.e., by the manufacturing of a series of periodical grooves on the major surfaces of a crystal. The CU was extensively characterized both morphologically via optical interferometry at SSL and structurally via X-ray diffraction at ESRF. Then, it was finally tested for channeling with a 400 GeV/c proton beam at CERN. The experimental results were compared to Monte Carlo simulations. Evidence of planar channeling in the CU was firmly observed. Finally, the emission spectrum of the positron beam interacting with the CU was simulated for possible usage in currently existing facilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.0251v3-abstract-full').style.display = 'none'; document.getElementById('1410.0251v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1311.4674">arXiv:1311.4674</a> <span> [<a href="https://arxiv.org/pdf/1311.4674">pdf</a>, <a href="https://arxiv.org/ps/1311.4674">ps</a>, <a href="https://arxiv.org/format/1311.4674">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-014-2740-7">10.1140/epjc/s10052-014-2740-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Steering efficiency of a ultrarelativistic proton beam in a thin bent crystal </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bagli%2C+E">Enrico Bagli</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Guidi%2C+V">Vincenzo Guidi</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=De+Salvador%2C+D">Davide De Salvador</a>, <a href="/search/physics?searchtype=author&query=Berra%2C+A">Alessandro Berra</a>, <a href="/search/physics?searchtype=author&query=Lietti%2C+D">Daniela Lietti</a>, <a href="/search/physics?searchtype=author&query=Prest%2C+M">Michela Prest</a>, <a href="/search/physics?searchtype=author&query=Vallazza%2C+E">Erik Vallazza</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1311.4674v1-abstract-short" style="display: inline;"> Crystals with small thickness along the beam exhibit top performance for steering particle beams through planar channeling. For such crystals, the effect of nuclear dechanneling plays an important role because it affects their efficiency. We addressed the problem through experimental work carried out with 400 GeV/c protons at fixed-target facilities of CERN-SPS. The dependence of efficiency vs. cu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.4674v1-abstract-full').style.display = 'inline'; document.getElementById('1311.4674v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1311.4674v1-abstract-full" style="display: none;"> Crystals with small thickness along the beam exhibit top performance for steering particle beams through planar channeling. For such crystals, the effect of nuclear dechanneling plays an important role because it affects their efficiency. We addressed the problem through experimental work carried out with 400 GeV/c protons at fixed-target facilities of CERN-SPS. The dependence of efficiency vs. curvature radius has been investigated and compared favourably to the results of modeling. A realistic estimate of the performance of a crystal designed for LHC energy including nuclear dechanneling has been achieved. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1311.4674v1-abstract-full').style.display = 'none'; document.getElementById('1311.4674v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 November, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> 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