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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/2303.12571">arXiv:2303.12571</a> <span> [<a href="https://arxiv.org/pdf/2303.12571">pdf</a>, <a href="https://arxiv.org/format/2303.12571">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/10.1088/1748-0221/18/05/P05012">10.1088/1748-0221/18/05/P05012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The New Small Wheel electronics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Iakovidis%2C+G">G. Iakovidis</a>, <a href="/search/physics?searchtype=author&query=Levinson%2C+L">L. Levinson</a>, <a href="/search/physics?searchtype=author&query=Afik%2C+Y">Y. Afik</a>, <a href="/search/physics?searchtype=author&query=Alexa%2C+C">C. Alexa</a>, <a href="/search/physics?searchtype=author&query=Alexopoulos%2C+T">T. Alexopoulos</a>, <a href="/search/physics?searchtype=author&query=Ameel%2C+J">J. Ameel</a>, <a href="/search/physics?searchtype=author&query=Amidei%2C+D">D. Amidei</a>, <a href="/search/physics?searchtype=author&query=Antrim%2C+D">D. Antrim</a>, <a href="/search/physics?searchtype=author&query=Badea%2C+A">A. Badea</a>, <a href="/search/physics?searchtype=author&query=Bakalis%2C+C">C. Bakalis</a>, <a href="/search/physics?searchtype=author&query=Boterenbrood%2C+H">H. Boterenbrood</a>, <a href="/search/physics?searchtype=author&query=Brener%2C+R+S">R. S. Brener</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+S">S. Chan</a>, <a href="/search/physics?searchtype=author&query=Chapman%2C+J">J. Chapman</a>, <a href="/search/physics?searchtype=author&query=Chatzianastasiou%2C+G">G. Chatzianastasiou</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Coliban%2C+R+M">R. M. Coliban</a>, <a href="/search/physics?searchtype=author&query=de+Paiva%2C+T+C">T. Costa de Paiva</a>, <a href="/search/physics?searchtype=author&query=de+Geronimo%2C+G">G. de Geronimo</a>, <a href="/search/physics?searchtype=author&query=Edgar%2C+R">R. Edgar</a>, <a href="/search/physics?searchtype=author&query=Felt%2C+N">N. Felt</a>, <a href="/search/physics?searchtype=author&query=Francescato%2C+S">S. Francescato</a>, <a href="/search/physics?searchtype=author&query=Franklin%2C+M">M. Franklin</a>, <a href="/search/physics?searchtype=author&query=Geralis%2C+T">T. Geralis</a> , et al. (77 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="2303.12571v2-abstract-short" style="display: inline;"> The increase in luminosity, and consequent higher backgrounds, of the LHC upgrades require improved rejection of fake tracks in the forward region of the ATLAS Muon Spectrometer. The New Small Wheel upgrade of the Muon Spectrometer aims to reduce the large background of fake triggers from track segments that are not originated from the interaction point. The New Small Wheel employs two detector te… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12571v2-abstract-full').style.display = 'inline'; document.getElementById('2303.12571v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.12571v2-abstract-full" style="display: none;"> The increase in luminosity, and consequent higher backgrounds, of the LHC upgrades require improved rejection of fake tracks in the forward region of the ATLAS Muon Spectrometer. The New Small Wheel upgrade of the Muon Spectrometer aims to reduce the large background of fake triggers from track segments that are not originated from the interaction point. The New Small Wheel employs two detector technologies, the resistive strip Micromegas detectors and the "small" Thin Gap Chambers, with a total of 2.45 Million electrodes to be sensed. The two technologies require the design of a complex electronics system given that it consists of two different detector technologies and is required to provide both precision readout and a fast trigger. It will operate in a high background radiation region up to about 20 kHz/cm$^{2}$ at the expected HL-LHC luminosity of $\mathcal{L}$=7.5$\times10^{34}$cm$^{-2}$s$^{-1}$. The architecture of the system is strongly defined by the GBTx data aggregation ASIC, the newly-introduced FELIX data router and the software based data handler of the ATLAS detector. The electronics complex of this new detector was designed and developed in the last ten years and consists of multiple radiation tolerant Application Specific Integrated Circuits, multiple front-end boards, dense boards with FPGA's and purpose-built Trigger Processor boards within the ATCA standard. The New Small Wheel has been installed in 2021 and is undergoing integration within ATLAS for LHC Run 3. It should operate through the end of Run 4 (December 2032). In this manuscript, the overall design of the New Small Wheel electronics is presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12571v2-abstract-full').style.display = 'none'; document.getElementById('2303.12571v2-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 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">61 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 18 P05012 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1903.08861">arXiv:1903.08861</a> <span> [<a href="https://arxiv.org/pdf/1903.08861">pdf</a>, <a href="https://arxiv.org/format/1903.08861">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.1088/1742-6596/1275/1/012028">10.1088/1742-6596/1275/1/012028 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> VIP2 in LNGS - Testing the Pauli Exclusion Principle for electrons with high sensitivity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Amirkhani%2C+A">A. Amirkhani</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Del+Grande%2C+R">R. Del Grande</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Fiorini%2C+C">C. Fiorini</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Milucci%2C+M">M. Milucci</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D">D. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a> , et al. (3 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="1903.08861v1-abstract-short" style="display: inline;"> The VIP2 (VIolation of the Pauli Exclusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) is searching for possible violations of standard quantum mechanics predictions in atoms at very high sensitivity. We investigate atomic transitions with precision X-ray spectroscopy in order to test the Pauli Exclusion Principle (PEP) and therefore the related spin-statistics theorem. W… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.08861v1-abstract-full').style.display = 'inline'; document.getElementById('1903.08861v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1903.08861v1-abstract-full" style="display: none;"> The VIP2 (VIolation of the Pauli Exclusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) is searching for possible violations of standard quantum mechanics predictions in atoms at very high sensitivity. We investigate atomic transitions with precision X-ray spectroscopy in order to test the Pauli Exclusion Principle (PEP) and therefore the related spin-statistics theorem. We will present our experimental method for the search for "anomalous" (i.e. Pauli-forbidden) X-ray transitions in copper atoms, produced by "new" electrons, which could have tiny probability to undergo Pauli-forbidden transition to the ground state already occupied by two electrons. We will describe the VIP2 experimental setup, which is taking data at LNGS presently. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10$^{-31}$. We will present current experimental results and discuss implications of a possible violation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.08861v1-abstract-full').style.display = 'none'; document.getElementById('1903.08861v1-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> 21 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Proceedings of DICE 2018 Conference</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.09101">arXiv:1807.09101</a> <span> [<a href="https://arxiv.org/pdf/1807.09101">pdf</a>, <a href="https://arxiv.org/format/1807.09101">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"> Search for $K^{+}\rightarrow蟺^{+}谓\overline谓$ at NA62 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=NA62+Collaboration"> NA62 Collaboration</a>, <a href="/search/physics?searchtype=author&query=Rinella%2C+G+A">G. Aglieri Rinella</a>, <a href="/search/physics?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <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=Angelucci%2C+B">B. Angelucci</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+A">A. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anzivino%2C+G">G. Anzivino</a>, <a href="/search/physics?searchtype=author&query=Arcidiacono%2C+R">R. Arcidiacono</a>, <a href="/search/physics?searchtype=author&query=Azhinenko%2C+I">I. Azhinenko</a>, <a href="/search/physics?searchtype=author&query=Balev%2C+S">S. Balev</a>, <a href="/search/physics?searchtype=author&query=Barbanera%2C+M">M. Barbanera</a>, <a href="/search/physics?searchtype=author&query=Bendotti%2C+J">J. Bendotti</a>, <a href="/search/physics?searchtype=author&query=Biagioni%2C+A">A. Biagioni</a>, <a href="/search/physics?searchtype=author&query=Bician%2C+L">L. Bician</a>, <a href="/search/physics?searchtype=author&query=Biino%2C+C">C. Biino</a>, <a href="/search/physics?searchtype=author&query=Bizzeti%2C+A">A. Bizzeti</a>, <a href="/search/physics?searchtype=author&query=Blazek%2C+T">T. Blazek</a>, <a href="/search/physics?searchtype=author&query=Blik%2C+A">A. Blik</a>, <a href="/search/physics?searchtype=author&query=Bloch-Devaux%2C+B">B. Bloch-Devaux</a>, <a href="/search/physics?searchtype=author&query=Bolotov%2C+V">V. Bolotov</a>, <a href="/search/physics?searchtype=author&query=Bonaiuto%2C+V">V. Bonaiuto</a>, <a href="/search/physics?searchtype=author&query=Boretto%2C+M">M. Boretto</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Britton%2C+D">D. Britton</a> , et al. (227 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="1807.09101v1-abstract-short" style="display: inline;"> $K^{+}\rightarrow蟺^{+}谓\overline谓$ is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10\% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of 2015 data acquired,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.09101v1-abstract-full').style.display = 'inline'; document.getElementById('1807.09101v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.09101v1-abstract-full" style="display: none;"> $K^{+}\rightarrow蟺^{+}谓\overline谓$ is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10\% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of 2015 data acquired, in view of the final measurement, will be presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.09101v1-abstract-full').style.display = 'none'; document.getElementById('1807.09101v1-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> 24 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </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">proceeding of the conference New Trends in High-Energy Physics 2016</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.02182">arXiv:1807.02182</a> <span> [<a href="https://arxiv.org/pdf/1807.02182">pdf</a>, <a href="https://arxiv.org/format/1807.02182">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="Quantum Physics">quant-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/10.1016/j.nima.2018.09.087">10.1016/j.nima.2018.09.087 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Detector setup of the VIP2 Underground Experiment at LNGS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Elnaggar%2C+H">H. Elnaggar</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Miliucci%2C+M">M. Miliucci</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a> , et al. (3 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="1807.02182v1-abstract-short" style="display: inline;"> The VIP2 experiment tests the Pauli Exclusion Principle with high sensitivity, by searching for Pauli-forbidden atomic transitions from the 2p to the 1s shell in copper at about 8keV. The transition energy of Pauli-forbidden K X-rays is shifted by about 300 eV with respect to the normal allowed K line. This energy difference can be resolved using Silicon Drift Detectors. The data for this experime… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02182v1-abstract-full').style.display = 'inline'; document.getElementById('1807.02182v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.02182v1-abstract-full" style="display: none;"> The VIP2 experiment tests the Pauli Exclusion Principle with high sensitivity, by searching for Pauli-forbidden atomic transitions from the 2p to the 1s shell in copper at about 8keV. The transition energy of Pauli-forbidden K X-rays is shifted by about 300 eV with respect to the normal allowed K line. This energy difference can be resolved using Silicon Drift Detectors. The data for this experiment is taken in the Gran Sasso underground laboratory (LNGS), which provides shielding from cosmic radiation. An overview of the detection system of the VIP2 experiment will be given. This includes the Silicon Drift Detectors used as X-ray detectors which provide an energy resolution of around 150 eV at 6 keV and timing information for active shielding. Furthermore, the low maintenance requirement makes them excellent X-ray detectors for the use in an underground laboratory. The VIP2 setup will be discussed which consists of a high current target system and a passive as well as an active shielding system using plastic scintillators read out by Silicon Photomultipliers. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.02182v1-abstract-full').style.display = 'none'; document.getElementById('1807.02182v1-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> 4 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1804.04446">arXiv:1804.04446</a> <span> [<a href="https://arxiv.org/pdf/1804.04446">pdf</a>, <a href="https://arxiv.org/format/1804.04446">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey 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="Quantum Physics">quant-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/s10052-018-5802-4">10.1140/epjc/s10052-018-5802-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental search for the violation of Pauli Exclusion Principle </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Elnaggar%2C+H">H. Elnaggar</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Miliucci%2C+M">M. Miliucci</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a>, <a href="/search/physics?searchtype=author&query=Doce%2C+O+V">O. Vazquez Doce</a> , et al. (3 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="1804.04446v3-abstract-short" style="display: inline;"> The VIolation of Pauli exclusion principle -2 experiment, or VIP-2 experiment, at the Laboratori Nazionali del Gran Sasso searches for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. Candidate direct violation events come from the transition of a $2p$ electron to the ground state that is already occupied by two electrons. From the first data taking campai… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.04446v3-abstract-full').style.display = 'inline'; document.getElementById('1804.04446v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1804.04446v3-abstract-full" style="display: none;"> The VIolation of Pauli exclusion principle -2 experiment, or VIP-2 experiment, at the Laboratori Nazionali del Gran Sasso searches for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. Candidate direct violation events come from the transition of a $2p$ electron to the ground state that is already occupied by two electrons. From the first data taking campaign in 2016 of VIP-2 experiment, we determined a best upper limit of 3.4 $\times$ 10$^{-29}$ for the probability that such a violation exists. Significant improvement in the control of the experimental systematics was also achieved, although not explicitly reflected in the improved upper limit. By introducing a simultaneous spectral fit of the signal and background data in the analysis, we succeeded in taking into account systematic errors that could not be evaluated previously in this type of measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.04446v3-abstract-full').style.display = 'none'; document.getElementById('1804.04446v3-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> 23 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2018. </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, 10 figures, 2 tables, accepted by EPJ C on 12th April 2018</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2018) 78: 319 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.01309">arXiv:1711.01309</a> <span> [<a href="https://arxiv.org/pdf/1711.01309">pdf</a>, <a href="https://arxiv.org/format/1711.01309">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="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> VIP2 at Gran Sasso - Test of the validity of the spin statistics theorem for electrons with X-ray spectroscopy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D">D. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a>, <a href="/search/physics?searchtype=author&query=Vazquez-Doce%2C+O">O. Vazquez-Doce</a> , et al. (2 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="1711.01309v1-abstract-short" style="display: inline;"> In the VIP2 (VIolation of the Pauli Exlusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) we are searching for possible violations of standard quantum mechanics predictions. With high precision we investigate the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We will present our experimental method of searching for possible small violati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.01309v1-abstract-full').style.display = 'inline'; document.getElementById('1711.01309v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.01309v1-abstract-full" style="display: none;"> In the VIP2 (VIolation of the Pauli Exlusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) we are searching for possible violations of standard quantum mechanics predictions. With high precision we investigate the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We will present our experimental method of searching for possible small violations of the Pauli Exclusion Principle for electrons, via the search for "anomalous" X-ray transitions in copper atoms, produced by "new" electrons (brought inside a copper bar by circulating current) which could have the probability to undergo Pauli-forbidden transition to the ground state (1 s level) already occupied by two electrons. We will describe the concept of the VIP2 experiment taking data at LNGS presently. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10$^{-31}$. We will show preliminary experimental results obtained at LNGS and discuss implications of a possible violation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.01309v1-abstract-full').style.display = 'none'; document.getElementById('1711.01309v1-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> 3 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Proceedings TAUP 2017</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1705.02165">arXiv:1705.02165</a> <span> [<a href="https://arxiv.org/pdf/1705.02165">pdf</a>, <a href="https://arxiv.org/format/1705.02165">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.3390/e19070300">10.3390/e19070300 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Test of the Pauli Exclusion Principle in the VIP-2 underground experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a>, <a href="/search/physics?searchtype=author&query=Doce%2C+O+V">O. Vazquez Doce</a>, <a href="/search/physics?searchtype=author&query=Widmann%2C+E">E. Widmann</a>, <a href="/search/physics?searchtype=author&query=Zmeskal%2C+J">J. Zmeskal</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="1705.02165v2-abstract-short" style="display: inline;"> The validity of the Pauli Exclusion Principle, a building block of Quantum Mechanics, is tested for electrons. The VIP (VIolation of Pauli exclusion principle) and its follow-up VIP-2 experiments at the Laboratori Nazionali del Gran Sasso search for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. The candidate events, if they exist, originate from the tra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.02165v2-abstract-full').style.display = 'inline'; document.getElementById('1705.02165v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1705.02165v2-abstract-full" style="display: none;"> The validity of the Pauli Exclusion Principle, a building block of Quantum Mechanics, is tested for electrons. The VIP (VIolation of Pauli exclusion principle) and its follow-up VIP-2 experiments at the Laboratori Nazionali del Gran Sasso search for x-rays from copper atomic transition that are prohibited by the Pauli Exclusion Principle. The candidate events, if they exist, originate from the transition of a $2p$ orbit electron to the ground state which is already occupied by two electrons. The present limit on the probability for Pauli Exclusion Principle violation for electrons set by the VIP experiment is 4.7 $\times$ 10 $^{-29}$. We report a first result from the VIP-2 experiment improving on the VIP limit, that solidifies the final goal to achieve a two order of magnitude gain in the long run. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.02165v2-abstract-full').style.display = 'none'; document.getElementById('1705.02165v2-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 December, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">6 pages, 3 figures. Submitted to journal Entropy special issue: "Quantum Information and Foundations", 2017</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> C.Curceanu et al.,Entropy 19, 300 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.10055">arXiv:1703.10055</a> <span> [<a href="https://arxiv.org/pdf/1703.10055">pdf</a>, <a href="https://arxiv.org/format/1703.10055">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</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"> Underground test of quantum mechanics - the VIP2 experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">Johann Marton</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bassi%2C+A">A. Bassi</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">Catalina Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Donadi%2C+S">S. Donadi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">Andreas Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+S+F">D. Sirghi F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a> , et al. (3 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="1703.10055v2-abstract-short" style="display: inline;"> We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We present our method of searching for possible small violations of the Pauli Exclusion Principle (PEP) for electrons, through the searc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.10055v2-abstract-full').style.display = 'inline'; document.getElementById('1703.10055v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.10055v2-abstract-full" style="display: none;"> We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We present our method of searching for possible small violations of the Pauli Exclusion Principle (PEP) for electrons, through the search for anomalous X-ray transitions in copper atoms, produced by fresh electrons (brought inside the copper bar by circulating current) which can have the probability to undergo Pauli-forbidden transition to the 1 s level already occupied by two electrons and we describe the VIP2 (VIolation of PEP) experiment under data taking at the Gran Sasso underground laboratories. In this paper the new VIP2 setup installed in the Gran Sasso underground laboratory will be presented. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10$^{-31}$. We show preliminary experimental results and discuss implications of a possible violation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.10055v2-abstract-full').style.display = 'none'; document.getElementById('1703.10055v2-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 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.06796">arXiv:1703.06796</a> <span> [<a href="https://arxiv.org/pdf/1703.06796">pdf</a>, <a href="https://arxiv.org/ps/1703.06796">ps</a>, <a href="https://arxiv.org/format/1703.06796">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.1088/1742-6596/880/1/012045">10.1088/1742-6596/880/1/012045 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Underground tests of quantum mechanics. Whispers in the cosmic silence? </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bassi%2C+A">A. Bassi</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Donadi%2C+S">S. Donadi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J">J-P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D">D. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a> , et al. (3 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="1703.06796v1-abstract-short" style="display: inline;"> By performing X-rays measurements in the "cosmic silence" of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP), for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. We also use a similar experiment… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.06796v1-abstract-full').style.display = 'inline'; document.getElementById('1703.06796v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.06796v1-abstract-full" style="display: none;"> By performing X-rays measurements in the "cosmic silence" of the underground laboratory of Gran Sasso, LNGS-INFN, we test a basic principle of quantum mechanics: the Pauli Exclusion Principle (PEP), for electrons. We present the achieved results of the VIP experiment and the ongoing VIP2 measurement aiming to gain two orders of magnitude improvement in testing PEP. We also use a similar experimental technique to search for radiation (X and gamma) predicted by continuous spontaneous localization models, which aim to solve the "measurement problem". <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.06796v1-abstract-full').style.display = 'none'; document.getElementById('1703.06796v1-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 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">7 pages, 3 figures, proceedings to the workshop "Eighth International Workshop DICE2016", Castello Pasquini/Castiglioncello (Tuscany), September 12-16, 2016 Spacetime - Matter - Quantum Mechanics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.01615">arXiv:1703.01615</a> <span> [<a href="https://arxiv.org/pdf/1703.01615">pdf</a>, <a href="https://arxiv.org/format/1703.01615">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.1088/1742-6596/873/1/012018">10.1088/1742-6596/873/1/012018 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> VIP-2 at LNGS: An experiment on the validity of the Pauli Exclusion Principle for electrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bassi%2C+A">A. Bassi</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Donadi%2C+S">S. Donadi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D">D. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a> , et al. (4 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="1703.01615v1-abstract-short" style="display: inline;"> We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We present our method of searching for possible small violations of the Pauli Exclusion Principle (PEP) for electrons, through the searc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.01615v1-abstract-full').style.display = 'inline'; document.getElementById('1703.01615v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.01615v1-abstract-full" style="display: none;"> We are experimentally investigating possible violations of standard quantum mechanics predictions in the Gran Sasso underground laboratory in Italy. We test with high precision the Pauli Exclusion Principle and the collapse of the wave function (collapse models). We present our method of searching for possible small violations of the Pauli Exclusion Principle (PEP) for electrons, through the search for anomalous X-ray transitions in copper atoms. These transitions are produced by new electrons (brought inside the copper bar by circulating current) which can have the possibility to undergo Pauli-forbidden transition to the 1s level already occupied by two electrons. We describe the VIP2 (VIolation of the Pauli Exclusion Principle) experimental data taking at the Gran Sasso underground laboratories. The goal of VIP2 is to test the PEP for electrons in agreement with the Messiah-Greenberg superselection rule with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10E-31. We show preliminary experimental results and discuss implications of a possible violation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.01615v1-abstract-full').style.display = 'none'; document.getElementById('1703.01615v1-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 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">Proc. DISCRETE2016</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1602.00898">arXiv:1602.00898</a> <span> [<a href="https://arxiv.org/pdf/1602.00898">pdf</a>, <a href="https://arxiv.org/format/1602.00898">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/10.1088/1742-6596/718/5/052030">10.1088/1742-6596/718/5/052030 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Application of photon detectors in the VIP2 experiment to test the Pauli Exclusion Principle </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a> , et al. (6 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="1602.00898v1-abstract-short" style="display: inline;"> The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to 1s transitions in copper, where 2 electrons are in the 1s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.00898v1-abstract-full').style.display = 'inline'; document.getElementById('1602.00898v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1602.00898v1-abstract-full" style="display: none;"> The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to 1s transitions in copper, where 2 electrons are in the 1s state before the transition happens. These transitions violate the PEP. The lack of detection of X-ray photons coming from these transitions resulted in a preliminary upper limit for the violation of the PEP of $4.7 \times 10^{-29}$. Currently, the successor experiment VIP2 is under preparation. The main improvements are, on one side, the use of Silicon Drift Detectors (SDDs) as X-ray photon detectors. On the other side an active shielding is implemented, which consists of plastic scintillator bars read by Silicon Photomultipliers (SiPMs). The employment of these detectors will improve the upper limit for the violation of the PEP by around 2 orders of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.00898v1-abstract-full').style.display = 'none'; document.getElementById('1602.00898v1-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1602.00867">arXiv:1602.00867</a> <span> [<a href="https://arxiv.org/pdf/1602.00867">pdf</a>, <a href="https://arxiv.org/format/1602.00867">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"> VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=D%27Uffizi%2C+A">A. D'Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a> , et al. (6 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="1602.00867v1-abstract-short" style="display: inline;"> The Pauli Exclusion Principle (PEP) was famously discovered in 1925 by the austrian physicist Wolfgang Pauli. Since then, it underwent several experimental tests. Starting in 2006, the VIP (Violation of the Pauli Principle) experiment looked for 2p to 1s X-ray transitions in copper, where 2 electrons are present in the 1s state before the transition happens. These transitions violate the PEP, and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.00867v1-abstract-full').style.display = 'inline'; document.getElementById('1602.00867v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1602.00867v1-abstract-full" style="display: none;"> The Pauli Exclusion Principle (PEP) was famously discovered in 1925 by the austrian physicist Wolfgang Pauli. Since then, it underwent several experimental tests. Starting in 2006, the VIP (Violation of the Pauli Principle) experiment looked for 2p to 1s X-ray transitions in copper, where 2 electrons are present in the 1s state before the transition happens. These transitions violate the PEP, and the lack of detection of the corresponding X-ray photons lead to a preliminary upper limit for the violation of the PEP of 4.7 * 10^(-29). The follow-up experiment VIP 2 is currently in the testing phase and will be transported to its final destination, the underground laboratory of Gran Sasso in Italy, in autumn 2015. Several improvements compared to its predecessor like the use of new X-ray detectors and active shielding from background gives rise to a goal for the improvement of the upper limit of the probability for the violation of the Pauli Exclusion Principle of 2 orders of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1602.00867v1-abstract-full').style.display = 'none'; document.getElementById('1602.00867v1-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 February, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.06617">arXiv:1601.06617</a> <span> [<a href="https://arxiv.org/pdf/1601.06617">pdf</a>, <a href="https://arxiv.org/format/1601.06617">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/s10701-015-9923-4">10.1007/s10701-015-9923-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spontaneously emitted X-rays: an experimental signature of the dynamical reduction models </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bassi%2C+A">A. Bassi</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Donadi%2C+S">S. Donadi</a>, <a href="/search/physics?searchtype=author&query=DUffizi%2C+A">A. DUffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J">J-P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T+.">T . Ponta</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a> , et al. (7 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="1601.06617v1-abstract-short" style="display: inline;"> We present the idea of searching for X-rays as a signature of the mechanism inducing the spontaneous collapse of the wave function. Such a signal is predicted by the continuous spontaneous localization theories, which are solving the "measurement problem" by modifying the Schrodinger equation. We will show some encouraging preliminary results and discuss future plans and strategy. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.06617v1-abstract-full" style="display: none;"> We present the idea of searching for X-rays as a signature of the mechanism inducing the spontaneous collapse of the wave function. Such a signal is predicted by the continuous spontaneous localization theories, which are solving the "measurement problem" by modifying the Schrodinger equation. We will show some encouraging preliminary results and discuss future plans and strategy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.06617v1-abstract-full').style.display = 'none'; document.getElementById('1601.06617v1-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 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </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">to be published in Foundation of Physics 2015</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.05828">arXiv:1601.05828</a> <span> [<a href="https://arxiv.org/pdf/1601.05828">pdf</a>, <a href="https://arxiv.org/format/1601.05828">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="Quantum Physics">quant-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/10.1088/1742-6596/718/4/042055">10.1088/1742-6596/718/4/042055 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searches for the Violation of Pauli Exclusion Principle at LNGS in VIP(-2) experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shi%2C+H">H Shi</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=d%27Uffizi%2C+A">A. d'Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Vidal%2C+A+R">A. Romero Vidal</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a> , et al. (5 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="1601.05828v1-abstract-short" style="display: inline;"> The VIP (Violation of Pauli exclusion principle) experiment and its follow-up experiment VIP-2 at the Laboratori Nazionali del Gran Sasso (LNGS) search for X-rays from Cu atomic states that are prohibited by the Pauli Exclusion Principle (PEP). The candidate events, if they exist, will originate from the transition of a $2p$ orbit electron to the ground state which is already occupied by two elect… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05828v1-abstract-full').style.display = 'inline'; document.getElementById('1601.05828v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.05828v1-abstract-full" style="display: none;"> The VIP (Violation of Pauli exclusion principle) experiment and its follow-up experiment VIP-2 at the Laboratori Nazionali del Gran Sasso (LNGS) search for X-rays from Cu atomic states that are prohibited by the Pauli Exclusion Principle (PEP). The candidate events, if they exist, will originate from the transition of a $2p$ orbit electron to the ground state which is already occupied by two electrons. The present limit on the probability for PEP violation for electron is 4.7 $\times10^{-29}$ set by the VIP experiment. With upgraded detectors for high precision X-ray spectroscopy, the VIP-2 experiment will improve the sensitivity by two orders of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05828v1-abstract-full').style.display = 'none'; document.getElementById('1601.05828v1-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> 21 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </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">5 pages, 3 figures, 1 table. Conference proceedings for oral presentation at TAUP 2015, Torino</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Physics: Conference Series 2016 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.02991">arXiv:1505.02991</a> <span> [<a href="https://arxiv.org/pdf/1505.02991">pdf</a>, <a href="https://arxiv.org/format/1505.02991">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="Quantum Physics">quant-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/10.1007/s10751-015-1180-6">10.1007/s10751-015-1180-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=D%60Uffizi%2C+A">A. D`Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+P">J. P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D">D. Sirghi</a> , et al. (5 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="1505.02991v1-abstract-short" style="display: inline;"> Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.02991v1-abstract-full').style.display = 'inline'; document.getElementById('1505.02991v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.02991v1-abstract-full" style="display: none;"> Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden by the Pauli Exclusion Principle. The VIP experiment resulted in a preliminary upper limit for the probability of the violation of the PEP of 4.7 x 10^{-29}. Currently a setup for the follow-up experiment VIP 2 is under preparation. The goal of this experiment is to improve the upper limit for the violation of the PEP by two orders of magnitude, by different improvements like enhanced energy resolution of the X-ray detectors and by implementing an active shielding. Here we report currently ongoing performance tests of the new parts of the setup. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.02991v1-abstract-full').style.display = 'none'; document.getElementById('1505.02991v1-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 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">EXA 2014 proceedings in Hyperfine Interactions (2015), Springer International Publishing</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1503.07667">arXiv:1503.07667</a> <span> [<a href="https://arxiv.org/pdf/1503.07667">pdf</a>, <a href="https://arxiv.org/format/1503.07667">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.1088/1742-6596/631/1/012070">10.1088/1742-6596/631/1/012070 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High sensitivity tests of the Pauli Exclusion Principle with VIP2 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pichler%2C+A">A. Pichler</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a>, <a href="/search/physics?searchtype=author&query=Doce%2C+O+V">O. Vazquez Doce</a> , et al. (2 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="1503.07667v1-abstract-short" style="display: inline;"> The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07667v1-abstract-full').style.display = 'inline'; document.getElementById('1503.07667v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1503.07667v1-abstract-full" style="display: none;"> The Pauli Exclusion Principle is one of the most fundamental rules of nature and represents a pillar of modern physics. According to many observations the Pauli Exclusion Principle must be extremely well fulfilled. Nevertheless, numerous experimental investigations were performed to search for a small violation of this principle. The VIP experiment at the Gran Sasso underground laboratory searched for Pauli-forbidden X-ray transitions in copper atoms using the Ramberg-Snow method and obtained the best limit so far. The follow-up experiment VIP2 is designed to reach even higher sensitivity. It aims to improve the limit by VIP by orders of magnitude. The experimental method, comparison of different PEP tests based on different assumptions and the developments for VIP2 are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1503.07667v1-abstract-full').style.display = 'none'; document.getElementById('1503.07667v1-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 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">6 pages, 3 figures, Proceedings DISCRETE2014 Conference</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1501.05548">arXiv:1501.05548</a> <span> [<a href="https://arxiv.org/pdf/1501.05548">pdf</a>, <a href="https://arxiv.org/format/1501.05548">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.5506/APhysPolB.46.101">10.5506/APhysPolB.46.101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the strong interaction induced shift and width of the 1s state of kaonic deuterium at J-PARC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zmeskal%2C+J">J. Zmeskal</a>, <a href="/search/physics?searchtype=author&query=Sato%2C+M">M. Sato</a>, <a href="/search/physics?searchtype=author&query=Ajimura%2C+S">S. Ajimura</a>, <a href="/search/physics?searchtype=author&query=Bazzi%2C+M">M. Bazzi</a>, <a href="/search/physics?searchtype=author&query=Beer%2C+G">G. Beer</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bhang%2C+H">H. Bhang</a>, <a href="/search/physics?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Buehler%2C+P">P. Buehler</a>, <a href="/search/physics?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S">S. Choi</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=D%27uffizi%2C+A">A. D'uffizi</a>, <a href="/search/physics?searchtype=author&query=Enomoto%2C+S">S. Enomoto</a>, <a href="/search/physics?searchtype=author&query=Fabbietti%2C+L">L. Fabbietti</a>, <a href="/search/physics?searchtype=author&query=Faso%2C+D">D. Faso</a>, <a href="/search/physics?searchtype=author&query=Fiorini%2C+C">C. Fiorini</a>, <a href="/search/physics?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/physics?searchtype=author&query=Ghio%2C+F">F. Ghio</a>, <a href="/search/physics?searchtype=author&query=Golser%2C+R">R. Golser</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Hashimoto%2C+T">T. Hashimoto</a> , et al. (52 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="1501.05548v1-abstract-short" style="display: inline;"> The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In this context the importance of kaonic deuterium X-ray spectroscopy has been well recognized, but no experimental results have yet been obtained due to the difficulty of the measurement. We propose to measure the shift and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.05548v1-abstract-full').style.display = 'inline'; document.getElementById('1501.05548v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.05548v1-abstract-full" style="display: none;"> The antikaon-nucleon interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In this context the importance of kaonic deuterium X-ray spectroscopy has been well recognized, but no experimental results have yet been obtained due to the difficulty of the measurement. We propose to measure the shift and width of the kaonic deuterium 1s state with an accuracy of 60 eV and 140 eV respectively at J-PARC. These results together with the kaonic hydrogen data (KpX at KEK, DEAR and SIDDHARTA at DAFNE) will then permit the determination of values of both the isospin I=0 and I=1 antikaon-nucleon scattering lengths and will provide the most stringent constraints on the antikaon-nucleon interaction, promising a breakthrough. Refined Monte Carlo studies were performed, including the investigation of background suppression factors for the described setup. These studies have demonstrated the feasibility of determining the shift and width of the kaonic deuterium atom 1s state with the desired accuracy of 60 eV and 140 eV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.05548v1-abstract-full').style.display = 'none'; document.getElementById('1501.05548v1-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, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">12 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/1501.04462">arXiv:1501.04462</a> <span> [<a href="https://arxiv.org/pdf/1501.04462">pdf</a>, <a href="https://arxiv.org/format/1501.04462">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.5506/APhysPolB.46.147">10.5506/APhysPolB.46.147 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beyond quantum mechanics? Hunting the 'impossible' atoms (Pauli Exclusion Principle violation and spontaneous collapse of the wave function at test) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bassi%2C+A">A. Bassi</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Donadi%2C+S">S. Donadi</a>, <a href="/search/physics?searchtype=author&query=d%27Uffizi%2C+A">A. d'Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J">J-P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a> , et al. (5 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="1501.04462v1-abstract-short" style="display: inline;"> The development of mathematically complete and consistent models solving the so-called "measurement problem", strongly renewed the interest of the scientific community for the foundations of quantum mechanics, among these the Dynamical Reduction Models posses the unique characteristic to be experimentally testable. In the first part of the paper an upper limit on the reduction rate parameter of su… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.04462v1-abstract-full').style.display = 'inline'; document.getElementById('1501.04462v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1501.04462v1-abstract-full" style="display: none;"> The development of mathematically complete and consistent models solving the so-called "measurement problem", strongly renewed the interest of the scientific community for the foundations of quantum mechanics, among these the Dynamical Reduction Models posses the unique characteristic to be experimentally testable. In the first part of the paper an upper limit on the reduction rate parameter of such models will be obtained, based on the analysis of the X-ray spectrum emitted by an isolated slab of germanium and measured by the IGEX experiment. The second part of the paper is devoted to present the results of the VIP (Violation of the Pauli exclusion principle) experiment and to describe its recent upgrade. The VIP experiment established a limit on the probability that the Pauli Exclusion Principle (PEP) is violated by electrons, using the very clean method of searching for PEP forbidden atomic transitions in copper. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1501.04462v1-abstract-full').style.display = 'none'; document.getElementById('1501.04462v1-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 January, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.1634">arXiv:1405.1634</a> <span> [<a href="https://arxiv.org/pdf/1405.1634">pdf</a>, <a href="https://arxiv.org/format/1405.1634">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-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/10.1016/j.phpro.2014.12.002">10.1016/j.phpro.2014.12.002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Testing the Pauli Exclusion Principle for electrons at LNGS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shi%2C+H">H. Shi</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+A+M">A. M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=De+Paolis%2C+L">L. De Paolis</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=d%27Uffizi%2C+A">A. d'Uffizi</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Vidal%2C+A+R">A. Romero Vidal</a>, <a href="/search/physics?searchtype=author&query=Sbardella%2C+E">E. Sbardella</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a> , et al. (5 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="1405.1634v1-abstract-short" style="display: inline;"> High-precision experiments have been done to test the Pauli exclusion principle (PEP) for electrons by searching for anomalous $K$-series X-rays from a Cu target supplied with electric current. With the highest sensitivity, the VIP (VIolation of Pauli Exclusion Principle) experiment set an upper limit at the level of $10^{-29}$ for the probability that an external electron captured by a Cu atom ca… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1634v1-abstract-full').style.display = 'inline'; document.getElementById('1405.1634v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.1634v1-abstract-full" style="display: none;"> High-precision experiments have been done to test the Pauli exclusion principle (PEP) for electrons by searching for anomalous $K$-series X-rays from a Cu target supplied with electric current. With the highest sensitivity, the VIP (VIolation of Pauli Exclusion Principle) experiment set an upper limit at the level of $10^{-29}$ for the probability that an external electron captured by a Cu atom can make the transition from the 2$p$ state to a 1$s$ state already occupied by two electrons. In a follow-up experiment at Gran Sasso, we aim to increase the sensitivity by two orders of magnitude. We show proofs that the proposed improvement factor is realistic based on the results from recent performance tests of the detectors we did at Laboratori Nazionali di Frascati (LNF). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.1634v1-abstract-full').style.display = 'none'; document.getElementById('1405.1634v1-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> 7 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </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, 5 figures, conference proceedings on TAUP 2013</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physics Procedia, 61 (2015) 552-559 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.4537">arXiv:1307.4537</a> <span> [<a href="https://arxiv.org/pdf/1307.4537">pdf</a>, <a href="https://arxiv.org/format/1307.4537">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"> The Straw Tube Trackers of the PANDA Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/physics?searchtype=author&query=Lucherini%2C+V">V. Lucherini</a>, <a href="/search/physics?searchtype=author&query=Pace%2C+E">E. Pace</a>, <a href="/search/physics?searchtype=author&query=Boca%2C+G+L">G. L. Boca</a>, <a href="/search/physics?searchtype=author&query=Costanza%2C+S">S. Costanza</a>, <a href="/search/physics?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/physics?searchtype=author&query=Lavezzi%2C+L">L. Lavezzi</a>, <a href="/search/physics?searchtype=author&query=Montanga%2C+P">P. Montanga</a>, <a href="/search/physics?searchtype=author&query=Rotondi%2C+A">A. Rotondi</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Vasile%2C+M+E">M. E. Vasile</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Biernat%2C+J">J. Biernat</a>, <a href="/search/physics?searchtype=author&query=Jowzaee%2C+S">S. Jowzaee</a>, <a href="/search/physics?searchtype=author&query=Korcyl%2C+G">G. Korcyl</a>, <a href="/search/physics?searchtype=author&query=Palka%2C+M">M. Palka</a>, <a href="/search/physics?searchtype=author&query=Salabura%2C+P">P. Salabura</a>, <a href="/search/physics?searchtype=author&query=Smyrski%2C+J">J. Smyrski</a>, <a href="/search/physics?searchtype=author&query=Fiutowski%2C+T">T. Fiutowski</a>, <a href="/search/physics?searchtype=author&query=Idzik%2C+M">M. Idzik</a>, <a href="/search/physics?searchtype=author&query=Przyborowski%2C+D">D. Przyborowski</a>, <a href="/search/physics?searchtype=author&query=Korcyl%2C+K">K. Korcyl</a>, <a href="/search/physics?searchtype=author&query=Kulessa%2C+P">P. Kulessa</a>, <a href="/search/physics?searchtype=author&query=Pysz%2C+K">K. Pysz</a>, <a href="/search/physics?searchtype=author&query=Dobbs%2C+S">S. Dobbs</a> , et al. (13 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="1307.4537v1-abstract-short" style="display: inline;"> The PANDA experiment will be built at the FAIR facility at Darmstadt (Germany) to perform accurate tests of the strong interaction through bar pp and bar pA annihilation's studies. To track charged particles, two systems consisting of a set of planar, closed-packed, self-supporting straw tube layers are under construction. The PANDA straw tubes will have also unique characteristics in term of mate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.4537v1-abstract-full').style.display = 'inline'; document.getElementById('1307.4537v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.4537v1-abstract-full" style="display: none;"> The PANDA experiment will be built at the FAIR facility at Darmstadt (Germany) to perform accurate tests of the strong interaction through bar pp and bar pA annihilation's studies. To track charged particles, two systems consisting of a set of planar, closed-packed, self-supporting straw tube layers are under construction. The PANDA straw tubes will have also unique characteristics in term of material budget and performance. They consist of very thin mylar-aluminized cathodes which are made self-supporting by means of the operation gas-mixture over-pressure. This solution allows to reduce at maximum the weight of the mechanical support frame and hence the detector material budget. The PANDA straw tube central tracker will not only reconstruct charged particle trajectories, but also will help in low momentum (< 1 GeV) particle identification via dE/dx measurements. This is a quite new approach that PANDA tracking group has first tested with detailed Monte Carlo simulations, and then with experimental tests of detector prototypes. This paper addresses the design issues of the PANDA straw tube trackers and the performance obtained in prototype tests. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.4537v1-abstract-full').style.display = 'none'; document.getElementById('1307.4537v1-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 July, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">7 pages,16 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE Xplore publication 2013 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1302.7218">arXiv:1302.7218</a> <span> [<a href="https://arxiv.org/pdf/1302.7218">pdf</a>, <a href="https://arxiv.org/ps/1302.7218">ps</a>, <a href="https://arxiv.org/format/1302.7218">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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"> Testing the Pauli Exclusion Principle for Electrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marton%2C+J">J. Marton</a>, <a href="/search/physics?searchtype=author&query=Bartalucci%2C+S">S. Bartalucci</a>, <a href="/search/physics?searchtype=author&query=Bertolucci%2C+S">S. Bertolucci</a>, <a href="/search/physics?searchtype=author&query=Berucci%2C+C">C. Berucci</a>, <a href="/search/physics?searchtype=author&query=Bragadireanu%2C+M">M. Bragadireanu</a>, <a href="/search/physics?searchtype=author&query=Cargnelli%2C+M">M. Cargnelli</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Di+Matteo%2C+S">S. Di Matteo</a>, <a href="/search/physics?searchtype=author&query=Egger%2C+J+-">J. -P. Egger</a>, <a href="/search/physics?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/physics?searchtype=author&query=Iliescu%2C+M">M. Iliescu</a>, <a href="/search/physics?searchtype=author&query=Ishiwatari%2C+T">T. Ishiwatari</a>, <a href="/search/physics?searchtype=author&query=Laubenstein%2C+M">M. Laubenstein</a>, <a href="/search/physics?searchtype=author&query=Milotti%2C+E">E. Milotti</a>, <a href="/search/physics?searchtype=author&query=Pietreanu%2C+D">D. Pietreanu</a>, <a href="/search/physics?searchtype=author&query=Pisciccia%2C+K">K. Pisciccia</a>, <a href="/search/physics?searchtype=author&query=Ponta%2C+T">T. Ponta</a>, <a href="/search/physics?searchtype=author&query=Romero-Vidal%2C+A">A. Romero-Vidal</a>, <a href="/search/physics?searchtype=author&query=Scordo%2C+A">A. Scordo</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+D+L">D. L. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sirghi%2C+F">F. Sirghi</a>, <a href="/search/physics?searchtype=author&query=Sperandio%2C+L">L. Sperandio</a>, <a href="/search/physics?searchtype=author&query=Doce%2C+O+V">O. Vazquez Doce</a>, <a href="/search/physics?searchtype=author&query=Widmann%2C+E">E. Widmann</a>, <a href="/search/physics?searchtype=author&query=Zmeskal%2C+J">J. Zmeskal</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="1302.7218v5-abstract-short" style="display: inline;"> One of the fundamental rules of nature and a pillar in the foundation of quantum theory and thus of modern physics is represented by the Pauli Exclusion Principle. We know that this principle is extremely well fulfilled due to many observations. Numerous experiments were performed to search for tiny violation of this rule in various systems. The experiment VIP at the Gran Sasso underground laborat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7218v5-abstract-full').style.display = 'inline'; document.getElementById('1302.7218v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1302.7218v5-abstract-full" style="display: none;"> One of the fundamental rules of nature and a pillar in the foundation of quantum theory and thus of modern physics is represented by the Pauli Exclusion Principle. We know that this principle is extremely well fulfilled due to many observations. Numerous experiments were performed to search for tiny violation of this rule in various systems. The experiment VIP at the Gran Sasso underground laboratory is searching for possible small violations of the Pauli Exclusion Principle for electrons leading to forbidden X-ray transitions in copper atoms. VIP is aiming at a test of the Pauli Exclusion Principle for electrons with high accuracy, down to the level of 10$^{-29}$ - 10$^{-30}$, thus improving the previous limit by 3-4 orders of magnitude. The experimental method, results obtained so far and new developments within VIP2 (follow-up experiment at Gran Sasso, in preparation) to further increase the precision by 2 orders of magnitude will be presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7218v5-abstract-full').style.display = 'none'; document.getElementById('1302.7218v5-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> 6 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">Proceedings DISCRETE 2012-Third Symposium on Prospects in the Physics of Discrete Symmetries, Lisbon, December 3-7, 2012</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1205.5441">arXiv:1205.5441</a> <span> [<a href="https://arxiv.org/pdf/1205.5441">pdf</a>, <a href="https://arxiv.org/format/1205.5441">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/10.1140/epja/i2013-13025-8">10.1140/epja/i2013-13025-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Technical Design Report for the: PANDA Straw Tube Tracker </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=PANDA+Collaboration"> PANDA Collaboration</a>, <a href="/search/physics?searchtype=author&query=Erni%2C+W">W. Erni</a>, <a href="/search/physics?searchtype=author&query=Keshelashvili%2C+I">I. Keshelashvili</a>, <a href="/search/physics?searchtype=author&query=Krusche%2C+B">B. Krusche</a>, <a href="/search/physics?searchtype=author&query=Steinacher%2C+M">M. Steinacher</a>, <a href="/search/physics?searchtype=author&query=Heng%2C+Y">Y. Heng</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Z">Z. Liu</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+H">H. Liu</a>, <a href="/search/physics?searchtype=author&query=Shen%2C+X">X. Shen</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Q">Q. Wang</a>, <a href="/search/physics?searchtype=author&query=Xu%2C+H">H. Xu</a>, <a href="/search/physics?searchtype=author&query=Aab%2C+A">A. Aab</a>, <a href="/search/physics?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/physics?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/physics?searchtype=author&query=Csap%C3%B3%2C+A">A. Csap贸</a>, <a href="/search/physics?searchtype=author&query=Feldbauer%2C+F">F. Feldbauer</a>, <a href="/search/physics?searchtype=author&query=Fink%2C+M">M. Fink</a>, <a href="/search/physics?searchtype=author&query=Friedel%2C+P">P. Friedel</a>, <a href="/search/physics?searchtype=author&query=Heinsius%2C+F+H">F. H. Heinsius</a>, <a href="/search/physics?searchtype=author&query=Held%2C+T">T. Held</a>, <a href="/search/physics?searchtype=author&query=Klask%2C+L">L. Klask</a>, <a href="/search/physics?searchtype=author&query=Koch%2C+H">H. Koch</a>, <a href="/search/physics?searchtype=author&query=Kopf%2C+B">B. Kopf</a>, <a href="/search/physics?searchtype=author&query=Leiber%2C+S">S. Leiber</a>, <a href="/search/physics?searchtype=author&query=Leyhe%2C+M">M. Leyhe</a> , et al. (451 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="1205.5441v2-abstract-short" style="display: inline;"> This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM-stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.5441v2-abstract-full').style.display = 'inline'; document.getElementById('1205.5441v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1205.5441v2-abstract-full" style="display: none;"> This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM-stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory and the measurement of the specific energy-loss for a particle identification. Dedicated simulations with full analysis studies of certain proton-antiproton reactions, identified as being benchmark tests for the whole PANDA scientific program, have been performed to test the STT layout and performance. The results are presented, and the time lines to construct the STT are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1205.5441v2-abstract-full').style.display = 'none'; document.getElementById('1205.5441v2-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> 4 June, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2012. </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">accepted for publication on EPJA</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A (2013) 49: 25 </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> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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