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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/2306.14578">arXiv:2306.14578</a> <span> [<a href="https://arxiv.org/pdf/2306.14578">pdf</a>, <a href="https://arxiv.org/format/2306.14578">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 - Phenomenology">hep-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="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Radiative Corrections: From Medium to High Energy Experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Afanasev%2C+A">Andrei Afanasev</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">Jan C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Blunden%2C+P">Peter Blunden</a>, <a href="/search/nucl-ex?searchtype=author&query=Bl%C3%BCmlein%2C+J">Johannes Bl眉mlein</a>, <a href="/search/nucl-ex?searchtype=author&query=Cline%2C+E+W">Ethan W. Cline</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">Jan M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Hagelstein%2C+F">Franziska Hagelstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Husek%2C+T">Tom谩拧 Husek</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">Michael Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Myhrer%2C+F">Fred Myhrer</a>, <a href="/search/nucl-ex?searchtype=author&query=Paz%2C+G">Gil Paz</a>, <a href="/search/nucl-ex?searchtype=author&query=Schadmand%2C+S">Susan Schadmand</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmidt%2C+A">Axel Schmidt</a>, <a href="/search/nucl-ex?searchtype=author&query=Sharkovska%2C+V">Vladyslava Sharkovska</a>, <a href="/search/nucl-ex?searchtype=author&query=Signer%2C+A">Adrian Signer</a>, <a href="/search/nucl-ex?searchtype=author&query=Tomalak%2C+O">Oleksandr Tomalak</a>, <a href="/search/nucl-ex?searchtype=author&query=Tomasi-Gustafsson%2C+E">Egle Tomasi-Gustafsson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ulrich%2C+Y">Yannick Ulrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Vanderhaeghen%2C+M">Marc Vanderhaeghen</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="2306.14578v1-abstract-short" style="display: inline;"> Radiative corrections are crucial for modern high-precision physics experiments, and are an area of active research in the experimental and theoretical community. Here we provide an overview of the state of the field of radiative corrections with a focus on several topics: lepton-proton scattering, QED corrections in deep-inelastic scattering, and in radiative light-hadron decays. Particular empha… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.14578v1-abstract-full').style.display = 'inline'; document.getElementById('2306.14578v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.14578v1-abstract-full" style="display: none;"> Radiative corrections are crucial for modern high-precision physics experiments, and are an area of active research in the experimental and theoretical community. Here we provide an overview of the state of the field of radiative corrections with a focus on several topics: lepton-proton scattering, QED corrections in deep-inelastic scattering, and in radiative light-hadron decays. Particular emphasis is placed on the two-photon exchange, believed to be responsible for the proton form-factor discrepancy, and associated Monte-Carlo codes. We encourage the community to continue developing theoretical techniques to treat radiative corrections, and perform experimental tests of these corrections. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.14578v1-abstract-full').style.display = 'none'; document.getElementById('2306.14578v1-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 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">Review article to be submitted to the EPJ A Topical Collection on radiative corrections. 63 pages, 27 figures, 3 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.12196">arXiv:2303.12196</a> <span> [<a href="https://arxiv.org/pdf/2303.12196">pdf</a>, <a href="https://arxiv.org/format/2303.12196">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Non-forward radiative corrections to electron-carbon scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mihovilovi%C4%8D%2C+M">M. Mihovilovi膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Weber%2C+A+B">A. B. Weber</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Bajec%2C+M">M. Bajec</a>, <a href="/search/nucl-ex?searchtype=author&query=Beranek%2C+T">T. Beranek</a>, <a href="/search/nucl-ex?searchtype=author&query=Beri%C4%8Di%C4%8D%2C+J">J. Beri膷i膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardinali%2C+M">M. Cardinali</a>, <a href="/search/nucl-ex?searchtype=author&query=Correa%2C+L">L. Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">L. Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">A. Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Bondy%2C+M+I+F">M. I. Feretti Bondy</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Fri%C5%A1%C4%8Di%C4%87%2C+I">I. Fri拧膷i膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Griffioen%2C+K">K. Griffioen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoek%2C+M">M. Hoek</a>, <a href="/search/nucl-ex?searchtype=author&query=Kegel%2C+S">S. Kegel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">D. G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a> , et al. (15 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="2303.12196v1-abstract-short" style="display: inline;"> Radiative corrections to elastic scattering represent an important part of the interpretation of electron-induced nuclear reactions at small energy transfers, where they make for a dominant part of background. Here we present and validate a new event generator for mimicking QED radiative processes in electron-carbon scattering that exactly calculates the coherent sum of the Bethe-Heitler amplitude… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12196v1-abstract-full').style.display = 'inline'; document.getElementById('2303.12196v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.12196v1-abstract-full" style="display: none;"> Radiative corrections to elastic scattering represent an important part of the interpretation of electron-induced nuclear reactions at small energy transfers, where they make for a dominant part of background. Here we present and validate a new event generator for mimicking QED radiative processes in electron-carbon scattering that exactly calculates the coherent sum of the Bethe-Heitler amplitudes for the leading diagrams and can be reliably employed for a more robust determination of inelastic cross-sections. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.12196v1-abstract-full').style.display = 'none'; document.getElementById('2303.12196v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.11791">arXiv:2003.11791</a> <span> [<a href="https://arxiv.org/pdf/2003.11791">pdf</a>, <a href="https://arxiv.org/format/2003.11791">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2020.135600">10.1016/j.physletb.2020.135600 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Antiproton over proton and K$^-$ over K$^+$ multiplicity ratios at high $z$ in DIS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Antoshkin%2C+A">A. Antoshkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Augsten%2C+K">K. Augsten</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Ball%2C+M">M. Ball</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Antequera%2C+J+B">J. Berenguer Antequera</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressan%2C+A">A. Bressan</a>, <a href="/search/nucl-ex?searchtype=author&query=Buechele%2C+M">M. Buechele</a>, <a href="/search/nucl-ex?searchtype=author&query=Burtsev%2C+V+E">V. E. Burtsev</a>, <a href="/search/nucl-ex?searchtype=author&query=Chang%2C+W+-">W. -C. Chang</a>, <a href="/search/nucl-ex?searchtype=author&query=Chatterjee%2C+C">C. Chatterjee</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiosso%2C+M">M. Chiosso</a> , et al. (174 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="2003.11791v1-abstract-short" style="display: inline;"> The $\bar{\rm p} $ over p multiplicity ratio is measured in deep-inelastic scattering for the first time using (anti-) protons carrying a large fraction of the virtual-photon energy, $z>0.5$. The data were obtained by the COMPASS Collaboration using a 160 GeV muon beam impinging on an isoscalar $^6$LiD target. The regime of deep-inelastic scattering is ensured by requiring $Q^2$ > 1 (GeV/$c$)$^2$… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.11791v1-abstract-full').style.display = 'inline'; document.getElementById('2003.11791v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.11791v1-abstract-full" style="display: none;"> The $\bar{\rm p} $ over p multiplicity ratio is measured in deep-inelastic scattering for the first time using (anti-) protons carrying a large fraction of the virtual-photon energy, $z>0.5$. The data were obtained by the COMPASS Collaboration using a 160 GeV muon beam impinging on an isoscalar $^6$LiD target. The regime of deep-inelastic scattering is ensured by requiring $Q^2$ > 1 (GeV/$c$)$^2$ for the photon virtuality and $W > 5$ GeV/$c^2$ for the invariant mass of the produced hadronic system. The range in Bjorken-$x$ is restricted to $0.01 < x < 0.40$. Protons and antiprotons are identified in the momentum range $20 梅60$ GeV/$c$. In the whole studied $z$-region, the $\bar{\rm p}$ over p multiplicity ratio is found to be below the lower limit expected from calculations based on leading-order perturbative Quantum Chromodynamics (pQCD). Extending our earlier analysis of the K$^-$ over K$^+$ multiplicity ratio by including now events with larger virtual-photon energies, this ratio becomes closer to the expectation of next-to-leading order pQCD. The results of both analyses strengthen our earlier conclusion that the phase space available for hadronisation should be taken into account in the pQCD formalism. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.11791v1-abstract-full').style.display = 'none'; document.getElementById('2003.11791v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 7 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2020-041 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.11182">arXiv:1905.11182</a> <span> [<a href="https://arxiv.org/pdf/1905.11182">pdf</a>, <a href="https://arxiv.org/format/1905.11182">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> </div> </div> <p class="title is-5 mathjax"> The proton charge radius extracted from the Initial State Radiation experiment at MAMI </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mihovilovi%C4%8D%2C+M">Miha Mihovilovi膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">Patrick Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Beranek%2C+T">Tobias Beranek</a>, <a href="/search/nucl-ex?searchtype=author&query=Beri%C4%8Di%C4%8D%2C+J">Jure Beri膷i膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">Jan C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">Ralph B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">Damir Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardinali%2C+M">Matteo Cardinali</a>, <a href="/search/nucl-ex?searchtype=author&query=Correa%2C+L">Loup Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">Luka Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Denig%2C+A">Achim Denig</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">Michael O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">Anselm Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Bondy%2C+M+I+F">Maria I. Ferretti Bondy</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">Helene Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">Jan M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Fri%C5%A1%C4%8Di%C4%87%2C+I">Ivica Fri拧膷i膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Griffioen%2C+K">Keith Griffioen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoek%2C+M">Matthias Hoek</a>, <a href="/search/nucl-ex?searchtype=author&query=Kegel%2C+S">Simon Kegel</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+Y">Yvonne Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">Harald Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">Duncan G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">Ulrich M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Pochodzalla%2C+J">Josef Pochodzalla</a> , et al. (10 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="1905.11182v1-abstract-short" style="display: inline;"> We report on a comprehensive reinterpretation of the existing cross-section data for elastic electron-proton scattering obtained by the initial-state radiation technique, resulting in a significantly improved accuracy of the extracted proton charge radius. By refining the external energy corrections we have achieved an outstanding description of the radiative tail, essential for a detailed investi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.11182v1-abstract-full').style.display = 'inline'; document.getElementById('1905.11182v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.11182v1-abstract-full" style="display: none;"> We report on a comprehensive reinterpretation of the existing cross-section data for elastic electron-proton scattering obtained by the initial-state radiation technique, resulting in a significantly improved accuracy of the extracted proton charge radius. By refining the external energy corrections we have achieved an outstanding description of the radiative tail, essential for a detailed investigation of the proton finite-size effects on the measured cross-sections. This development, together with a novel framework for determining the radius, based on a regression analysis of the cross-sections employing a polynomial model for the form factor, led us to a new value for the charge radius, which is $(0.870 \pm 0.014_\mathrm{stat.}\pm 0.024_\mathrm{sys.} \pm 0.003_\mathrm{mod.})\,\mathrm{fm}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.11182v1-abstract-full').style.display = 'none'; document.getElementById('1905.11182v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1802.02739">arXiv:1802.02739</a> <span> [<a href="https://arxiv.org/pdf/1802.02739">pdf</a>, <a href="https://arxiv.org/format/1802.02739">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2019.04.038">10.1016/j.physletb.2019.04.038 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse Extension of Partons in the Proton probed by Deeply Virtual Compton Scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anfimov%2C+N+V">N. V. Anfimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Antoshkin%2C+A">A. Antoshkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Augsten%2C+K">K. Augsten</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Ball%2C+M">M. Ball</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a> , et al. (202 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="1802.02739v2-abstract-short" style="display: inline;"> We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/$c$ polarized $渭^+$ and $渭^-$ beams of the CERN SPS impinging on a liquid hydrogen target. We determine the dependence of the average of the measured $渭^+$ and $渭^-$ cross sections for deeply virtual Compton scattering on the squared four-momentum transfer $t$ from the initial to the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.02739v2-abstract-full').style.display = 'inline'; document.getElementById('1802.02739v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1802.02739v2-abstract-full" style="display: none;"> We report on the first measurement of exclusive single-photon muoproduction on the proton by COMPASS using 160 GeV/$c$ polarized $渭^+$ and $渭^-$ beams of the CERN SPS impinging on a liquid hydrogen target. We determine the dependence of the average of the measured $渭^+$ and $渭^-$ cross sections for deeply virtual Compton scattering on the squared four-momentum transfer $t$ from the initial to the final final proton. The slope $B$ of the $t$-dependence is fitted with a single exponential function, which yields $B=(4.3 \ \pm \ 0.6_{\text{stat}}\_{- \ 0.3}^{+ \ 0.1}\big\rvert_{\text{sys}}) (\text{GeV}/c)^{-2}$. This result can be converted into an average transverse extension of partons in the proton, $\sqrt{\langle r_{\perp}^2 \rangle} = (0.58 \ \pm \ 0.04_{\text{stat}}\_{- \ 0.02}^{+ \ 0.01}\big\rvert_{\text{sys}})\text{fm}$. For this measurement, the average virtuality of the photon mediating the interaction is $\langle Q^2 \rangle = 1.8\,(\text{GeV/}c)^2$ and the average value of the Bjorken variable is $\langle x_{\text{Bj}} \rangle = 0.056$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1802.02739v2-abstract-full').style.display = 'none'; document.getElementById('1802.02739v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 February, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2018-016 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1709.07374">arXiv:1709.07374</a> <span> [<a href="https://arxiv.org/pdf/1709.07374">pdf</a>, <a href="https://arxiv.org/format/1709.07374">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.97.032006">10.1103/PhysRevD.97.032006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse-momentum-dependent Multiplicities of Charged Hadrons in Muon-Deuteron Deep Inelastic Scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aghasyan%2C+M">M. Aghasyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anfimov%2C+N+V">N. V. Anfimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Antoshkin%2C+A">A. Antoshkin</a>, <a href="/search/nucl-ex?searchtype=author&query=Augsten%2C+K">K. Augsten</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Ball%2C+M">M. Ball</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a> , et al. (206 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="1709.07374v1-abstract-short" style="display: inline;"> A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality $Q^{2}>1$ (GeV/$c$)$^2$, invariant mass of the hadronic system $W > 5$ GeV/$c^2$, Bjorken scaling variable in the range… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.07374v1-abstract-full').style.display = 'inline'; document.getElementById('1709.07374v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1709.07374v1-abstract-full" style="display: none;"> A semi-inclusive measurement of charged hadron multiplicities in deep inelastic muon scattering off an isoscalar target was performed using data collected by the COMPASS Collaboration at CERN. The following kinematic domain is covered by the data: photon virtuality $Q^{2}>1$ (GeV/$c$)$^2$, invariant mass of the hadronic system $W > 5$ GeV/$c^2$, Bjorken scaling variable in the range $0.003 < x < 0.4$, fraction of the virtual photon energy carried by the hadron in the range $0.2 < z < 0.8$, square of the hadron transverse momentum with respect to the virtual photon direction in the range 0.02 (GeV/$c)^2 < P_{\rm{hT}}^{2} < 3$ (GeV/$c$)$^2$. The multiplicities are presented as a function of $P_{\rm{hT}}^{2}$ in three-dimensional bins of $x$, $Q^2$, $z$ and compared to previous semi-inclusive measurements. We explore the small-$P_{\rm{hT}}^{2}$ region, i.e. $P_{\rm{hT}}^{2} < 1$ (GeV/$c$)$^2$, where hadron transverse momenta are expected to arise from non-perturbative effects, and also the domain of larger $P_{\rm{hT}}^{2}$, where contributions from higher-order perturbative QCD are expected to dominate. The multiplicities are fitted using a single-exponential function at small $P_{\rm{hT}}^{2}$ to study the dependence of the average transverse momentum $\langle P_{\rm{hT}}^{2}\rangle$ on $x$, $Q^2$ and $z$. The power-law behaviour of the multiplicities at large $P_{\rm{hT}}^{2}$ is investigated using various functional forms. The fits describe the data reasonably well over the full measured range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1709.07374v1-abstract-full').style.display = 'none'; document.getElementById('1709.07374v1-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 September, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 20 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2017-253 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 97, 032006 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.06707">arXiv:1612.06707</a> <span> [<a href="https://arxiv.org/pdf/1612.06707">pdf</a>, <a href="https://arxiv.org/format/1612.06707">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="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2017.05.031">10.1016/j.physletb.2017.05.031 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of proton's charge form factor at very low $Q^2$ with initial state radiation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mihovilovi%C4%8D%2C+M">M. Mihovilovi膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Weber%2C+A+B">A. B. Weber</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Beranek%2C+T">T. Beranek</a>, <a href="/search/nucl-ex?searchtype=author&query=Beri%C4%8Di%C4%8D%2C+J">J. Beri膷i膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardinali%2C+M">M. Cardinali</a>, <a href="/search/nucl-ex?searchtype=author&query=Correa%2C+L">L. Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">L. Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Denig%2C+A">A. Denig</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">A. Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Bondy%2C+M+I+F">M. I. Ferretti Bondy</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Fri%C5%A1%C4%8Di%C4%87%2C+I">I. Fri拧膷i膰</a>, <a href="/search/nucl-ex?searchtype=author&query=Griffioen%2C+K">K. Griffioen</a>, <a href="/search/nucl-ex?searchtype=author&query=Hoek%2C+M">M. Hoek</a>, <a href="/search/nucl-ex?searchtype=author&query=Kegel%2C+S">S. Kegel</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+Y">Y. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">D. G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a> , et al. (14 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="1612.06707v1-abstract-short" style="display: inline;"> We report on a new experimental method based on initial-state radiation (ISR) in e-p scattering, in which the radiative tail of the elastic e-p peak contains information on the proton charge form factor ($G_E^p$) at extremely small $Q^2$. The ISR technique was validated in a dedicated experiment using the spectrometers of the A1-Collaboration at the Mainz Microtron (MAMI). This provided first meas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.06707v1-abstract-full').style.display = 'inline'; document.getElementById('1612.06707v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.06707v1-abstract-full" style="display: none;"> We report on a new experimental method based on initial-state radiation (ISR) in e-p scattering, in which the radiative tail of the elastic e-p peak contains information on the proton charge form factor ($G_E^p$) at extremely small $Q^2$. The ISR technique was validated in a dedicated experiment using the spectrometers of the A1-Collaboration at the Mainz Microtron (MAMI). This provided first measurements of $G_E^p$ for $0.001\leq Q^2\leq 0.004 (GeV/c)^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.06707v1-abstract-full').style.display = 'none'; document.getElementById('1612.06707v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">6 pages, 3 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/1608.06760">arXiv:1608.06760</a> <span> [<a href="https://arxiv.org/pdf/1608.06760">pdf</a>, <a href="https://arxiv.org/format/1608.06760">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2017.01.053">10.1016/j.physletb.2017.01.053 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Agarwala%2C+J">J. Agarwala</a>, <a href="/search/nucl-ex?searchtype=author&query=Aghasyan%2C+M">M. Aghasyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anfimov%2C+N+V">N. V. Anfimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Augsten%2C+K">K. Augsten</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Ball%2C+M">M. Ball</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a> , et al. (202 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="1608.06760v1-abstract-short" style="display: inline;"> Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.06760v1-abstract-full').style.display = 'inline'; document.getElementById('1608.06760v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1608.06760v1-abstract-full" style="display: none;"> Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6 LiD target. They cover the kinematic domain 1 (GeV/c)2 < Q2 < 60 (GeV/c)^2 in the photon virtuality, 0.004 < x < 0.4, 0.1 < y < 0.7, 0.20 < z < 0.85, and W > 5 GeV/c^2 in the invariant mass of the hadronic system. The results from the sum of the z-integrated K+ and K- multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.06760v1-abstract-full').style.display = 'none'; document.getElementById('1608.06760v1-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 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">10 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2016--206 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.03725">arXiv:1606.03725</a> <span> [<a href="https://arxiv.org/pdf/1606.03725">pdf</a>, <a href="https://arxiv.org/format/1606.03725">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysb.2016.12.015">10.1016/j.nuclphysb.2016.12.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Exclusive $蠅$ meson muoproduction on transversely polarised protons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Agarwala%2C+J">J. Agarwala</a>, <a href="/search/nucl-ex?searchtype=author&query=Aghasyan%2C+M">M. Aghasyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anfimov%2C+N+V">N. V. Anfimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a> , et al. (204 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="1606.03725v2-abstract-short" style="display: inline;"> Exclusive production of $蠅$ mesons was studied at the COMPASS experiment by scattering $160~\mathrm{GeV}/\mathit{c}$ muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured in the range of photon virtuality $1~(\mathrm{GeV}/\mathit{c})^2 < Q^2 < 10~(\mathrm{GeV}/\mathit{c})^2$, Bjorken scaling variable $0.003 < x_{\mathit{Bj}} < 0.3$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.03725v2-abstract-full').style.display = 'inline'; document.getElementById('1606.03725v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.03725v2-abstract-full" style="display: none;"> Exclusive production of $蠅$ mesons was studied at the COMPASS experiment by scattering $160~\mathrm{GeV}/\mathit{c}$ muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured in the range of photon virtuality $1~(\mathrm{GeV}/\mathit{c})^2 < Q^2 < 10~(\mathrm{GeV}/\mathit{c})^2$, Bjorken scaling variable $0.003 < x_{\mathit{Bj}} < 0.3$ and transverse momentum squared of the $蠅$ meson $0.05~(\mathrm{GeV}/\mathit{c})^2 < p_{T}^{2} < 0.5~(\mathrm{GeV}/\mathit{c})^2$. The measured asymmetries are sensitive to the nucleon helicity-flip Generalised Parton Distributions (GPD) $E$ that are related to the orbital angular momentum of quarks, the chiral-odd GPDs $H_{T}$ that are related to the transversity Parton Distribution Functions, and the sign of the $蟺蠅$ transition form factor. The results are compared to recent calculations of a GPD-based model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.03725v2-abstract-full').style.display = 'none'; document.getElementById('1606.03725v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 October, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">23 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2016-157 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.02695">arXiv:1604.02695</a> <span> [<a href="https://arxiv.org/pdf/1604.02695">pdf</a>, <a href="https://arxiv.org/format/1604.02695">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2016.09.042">10.1016/j.physletb.2016.09.042 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Multiplicities of charged pions and unidentified charged hadrons from deep-inelastic scattering of muons off an isoscalar target </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Agarwala%2C+J">J. Agarwala</a>, <a href="/search/nucl-ex?searchtype=author&query=Aghasyan%2C+M">M. Aghasyan</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anfimov%2C+N+V">N. V. Anfimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Augustyniak%2C+W">W. Augustyniak</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a> , et al. (203 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="1604.02695v2-abstract-short" style="display: inline;"> Multiplicities of charged pions and unidentified hadrons produced in deep-inelastic scattering were measured in bins of the Bjorken scaling variable $x$, the relative virtual-photon energy $y$ and the relative hadron energy $z$. Data were obtained by the COMPASS Collaboration using a 160 GeV muon beam and an isoscalar target ($^6$LiD). They cover the kinematic domain in the photon virtuality… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.02695v2-abstract-full').style.display = 'inline'; document.getElementById('1604.02695v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.02695v2-abstract-full" style="display: none;"> Multiplicities of charged pions and unidentified hadrons produced in deep-inelastic scattering were measured in bins of the Bjorken scaling variable $x$, the relative virtual-photon energy $y$ and the relative hadron energy $z$. Data were obtained by the COMPASS Collaboration using a 160 GeV muon beam and an isoscalar target ($^6$LiD). They cover the kinematic domain in the photon virtuality $Q^2$ > 1(GeV/c$)^2$, $0.004 < x < 0.4$, $0.2 < z < 0.85$ and $0.1 < y < 0.7$. In addition, a leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.02695v2-abstract-full').style.display = 'none'; document.getElementById('1604.02695v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2016-095 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.06106">arXiv:1505.06106</a> <span> [<a href="https://arxiv.org/pdf/1505.06106">pdf</a>, <a href="https://arxiv.org/ps/1505.06106">ps</a>, <a href="https://arxiv.org/format/1505.06106">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="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.92.054307">10.1103/PhysRevC.92.054307 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the Beam-Recoil Polarization in Low-Energy Virtual Compton Scattering from the Proton </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Doria%2C+L">L. Doria</a>, <a href="/search/nucl-ex?searchtype=author&query=Janssens%2C+P">P. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bensafa%2C+I">I. Bensafa</a>, <a href="/search/nucl-ex?searchtype=author&query=Benali%2C+M">M. Benali</a>, <a href="/search/nucl-ex?searchtype=author&query=Beri%C4%8Di%C4%8D%2C+J">J. Beri膷i膷</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Correa%2C+L">L. Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Hose%2C+N">N. D'Hose</a>, <a href="/search/nucl-ex?searchtype=author&query=Defa%C3%BF%2C+X">X. Defa每</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Laveissi%C3%A8re%2C+G">G. Laveissi猫re</a>, <a href="/search/nucl-ex?searchtype=author&query=Makek%2C+M">M. Makek</a>, <a href="/search/nucl-ex?searchtype=author&query=Marroncle%2C+J">J. Marroncle</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Mihovilovi%C4%8D%2C+M">M. Mihovilovi膷</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a> , et al. (16 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="1505.06106v1-abstract-short" style="display: inline;"> Double-polarization observables in the reaction $\vec{e}p \rightarrow e'\vec{p'}纬$ have been measured at $Q^2=0.33 (GeV/c)^2$. The experiment was performed at the spectrometer setup of the A1 Collaboration using the 855 MeV polarized electron beam provided by the Mainz Microtron (MAMI) and a recoil proton polarimeter. From the double-polarization observables the structure function $P_{LT}^\perp$ i… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.06106v1-abstract-full').style.display = 'inline'; document.getElementById('1505.06106v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.06106v1-abstract-full" style="display: none;"> Double-polarization observables in the reaction $\vec{e}p \rightarrow e'\vec{p'}纬$ have been measured at $Q^2=0.33 (GeV/c)^2$. The experiment was performed at the spectrometer setup of the A1 Collaboration using the 855 MeV polarized electron beam provided by the Mainz Microtron (MAMI) and a recoil proton polarimeter. From the double-polarization observables the structure function $P_{LT}^\perp$ is extracted for the first time, with the value $(-15.4 \pm 3.3 (stat.)^{+1.5}_{-2.4} (syst.)) GeV^{-2}$, using the low-energy theorem for Virtual Compton Sattering. This structure function provides a hitherto unmeasured linear combination of the generalized polarizabilities of the proton. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.06106v1-abstract-full').style.display = 'none'; document.getElementById('1505.06106v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 May, 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">Journal ref:</span> Phys. Rev. C 92, 054307 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1408.4286">arXiv:1408.4286</a> <span> [<a href="https://arxiv.org/pdf/1408.4286">pdf</a>, <a href="https://arxiv.org/format/1408.4286">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.11.058">10.1016/j.physletb.2014.11.058 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Odd and Even Partial Waves of $畏蟺^-$ and $畏'蟺^-$ in $蟺^-p\to畏^{(\prime)}蟺^-p$ at $191\,\textrm{GeV}/c$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+G">G. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlin%2C+A">A. Berlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bielert%2C+E+R">E. R. Bielert</a>, <a href="/search/nucl-ex?searchtype=author&query=Bieling%2C+J">J. Bieling</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a> , et al. (184 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="1408.4286v1-abstract-short" style="display: inline;"> Exclusive production of $畏蟺^-$ and $畏'蟺^-$ has been studied with a $191\,\textrm{GeV}/c$ $蟺^-$ beam impinging on a hydrogen target at COMPASS (CERN). Partial-wave analyses reveal different odd/even angular momentum ($L$) characteristics in the inspected invariant mass range up to $3\,\textrm{GeV}/c^2$. A striking similarity between the two systems is observed for the $L=2,4,6$ intensities (scaled… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.4286v1-abstract-full').style.display = 'inline'; document.getElementById('1408.4286v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1408.4286v1-abstract-full" style="display: none;"> Exclusive production of $畏蟺^-$ and $畏'蟺^-$ has been studied with a $191\,\textrm{GeV}/c$ $蟺^-$ beam impinging on a hydrogen target at COMPASS (CERN). Partial-wave analyses reveal different odd/even angular momentum ($L$) characteristics in the inspected invariant mass range up to $3\,\textrm{GeV}/c^2$. A striking similarity between the two systems is observed for the $L=2,4,6$ intensities (scaled by kinematical factors) and the relative phases. The known resonances $a_2(1320)$ and $a_4(2040)$ are in line with this similarity. In contrast, a strong enhancement of $畏'蟺^-$ over $畏蟺^-$ is found for the $L=1,3,5$ waves, which carry non-$q\bar q$ quantum numbers. The $L=1$ intensity peaks at $1.7\,\textrm{GeV}/c^2$ in $畏'蟺^-$ and at $1.4\,\textrm{GeV}/c^2$ in $畏蟺^-$, the corresponding phase motions with respect to $L=2$ are different. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.4286v1-abstract-full').style.display = 'none'; document.getElementById('1408.4286v1-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 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">16 pages, 5 figures and 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.6377">arXiv:1405.6377</a> <span> [<a href="https://arxiv.org/pdf/1405.6377">pdf</a>, <a href="https://arxiv.org/format/1405.6377">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.114.062002">10.1103/PhysRevLett.114.062002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the charged-pion polarisability </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+G">G. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlin%2C+A">A. Berlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bieling%2C+J">J. Bieling</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/nucl-ex?searchtype=author&query=Braun%2C+C">C. Braun</a> , et al. (188 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="1405.6377v2-abstract-short" style="display: inline;"> The COMPASS collaboration at CERN has investigated pion Compton scattering, $蟺^-纬\rightarrow 蟺^-纬$, at centre-of-mass energy below 3.5 pion masses. The process is embedded in the reaction $蟺^-\mathrm{Ni}\rightarrow蟺^-纬\;\mathrm{Ni}$, which is initiated by 190\,GeV pions impinging on a nickel target. The exchange of quasi-real photons is selected by isolating the sharp Coulomb peak observed at smal… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6377v2-abstract-full').style.display = 'inline'; document.getElementById('1405.6377v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.6377v2-abstract-full" style="display: none;"> The COMPASS collaboration at CERN has investigated pion Compton scattering, $蟺^-纬\rightarrow 蟺^-纬$, at centre-of-mass energy below 3.5 pion masses. The process is embedded in the reaction $蟺^-\mathrm{Ni}\rightarrow蟺^-纬\;\mathrm{Ni}$, which is initiated by 190\,GeV pions impinging on a nickel target. The exchange of quasi-real photons is selected by isolating the sharp Coulomb peak observed at smallest momentum transfers, $Q^2<0.0015$\,(GeV/$c$)$^2$. From a sample of 63\,000 events the pion electric polarisability is determined to be $伪_蟺 =\ (\,2.0\ \pm\ 0.6_{\mbox{\scriptsize stat}}\ \pm\ 0.7_{\mbox{\scriptsize syst}}\,) \times 10^{-4}\,\mbox{fm}^3$ under the assumption $伪_蟺=-尾_蟺$, which relates the electric and magnetic dipole polarisabilities. It is the most precise measurement of this fundamental low-energy parameter of strong interaction, that has been addressed since long by various methods with conflicting outcomes. While this result is in tension with previous dedicated measurements, it is found in agreement with the expectation from chiral perturbation theory. An additional measurement replacing pions by muons, for which the cross-section behavior is unambigiously known, was performed for an independent estimate of the systematic uncertainty. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6377v2-abstract-full').style.display = 'none'; document.getElementById('1405.6377v2-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, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 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">Published version: 9 pages, 3 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 114, 062002 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.6376">arXiv:1405.6376</a> <span> [<a href="https://arxiv.org/pdf/1405.6376">pdf</a>, <a href="https://arxiv.org/format/1405.6376">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nuclphysb.2014.07.020">10.1016/j.nuclphysb.2014.07.020 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spin alignment and violation of the OZI rule in exclusive $蠅$ and $蠁$ production in pp collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Akhunzyanov%2C+R">R. Akhunzyanov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+M+G">M. G. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Anosov%2C+V">V. Anosov</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+G">G. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Beck%2C+R">R. Beck</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlin%2C+A">A. Berlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bieling%2C+J">J. Bieling</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bodlak%2C+M">M. Bodlak</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/nucl-ex?searchtype=author&query=Braun%2C+C">C. Braun</a> , et al. (184 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="1405.6376v1-abstract-short" style="display: inline;"> Exclusive production of the isoscalar vector mesons $蠅$ and $蠁$ is measured with a 190 GeV$/c$ proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable $x_{F}$ of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on $x_{F}$ and on the invariant mass… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6376v1-abstract-full').style.display = 'inline'; document.getElementById('1405.6376v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.6376v1-abstract-full" style="display: none;"> Exclusive production of the isoscalar vector mesons $蠅$ and $蠁$ is measured with a 190 GeV$/c$ proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable $x_{F}$ of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on $x_{F}$ and on the invariant mass $M_{p\mathrm{V}}$ of the system formed by fast proton $p_\mathrm{fast}$ and vector meson $V$ is discussed in terms of diffractive production of $p_\mathrm{fast}V$ resonances in competition with central production. The measurement of the spin density matrix element $蟻_{00}$ of the vector mesons in different selected reference frames provides another handle to distinguish the contributions of these two major reaction types. Again, dependences of the alignment on $x_{F}$ and on $M_{p\mathrm{V}}$ are found. Most of the observations can be traced back to the existence of several excited baryon states contributing to $蠅$ production which are absent in the case of the $蠁$ meson. Removing the low-mass $M_{p\mathrm{V}}$ resonant region, the OZI rule is found to be violated by a factor of eight, independently of $x_\mathrm{F}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6376v1-abstract-full').style.display = 'none'; document.getElementById('1405.6376v1-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, 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">23 pages, 13 figures and 5 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1310.1454">arXiv:1310.1454</a> <span> [<a href="https://arxiv.org/pdf/1310.1454">pdf</a>, <a href="https://arxiv.org/format/1310.1454">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2014.02.005">10.1016/j.physletb.2014.02.005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse target spin asymmetries in exclusive $蟻^0$ muoproduction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+M+G">M. G. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexakhin%2C+V+Y">V. Yu. Alexakhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexandrov%2C+Y">Yu. Alexandrov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieux%2C+V">V. Andrieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badellek%2C+B">B. Badellek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+G">G. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlin%2C+A">A. Berlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertini%2C+R">R. Bertini</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bieling%2C+J">J. Bieling</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Boer%2C+M">M. Boer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/nucl-ex?searchtype=author&query=Braun%2C+C">C. Braun</a>, <a href="/search/nucl-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a> , et al. (188 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="1310.1454v2-abstract-short" style="display: inline;"> Exclusive production of $蟻^0$ mesons was studied at the COMPASS experiment by scattering 160 GeV/$c$ muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured as a function of $Q^2$, $x_{Bj}$, or $p_{T}^{2}$. The $\sin 蠁_S$ asymmetry is found to be $-0.019 \pm 0.008(stat.) \pm 0.003(syst.)$. All other asymmetries are also found to be of sm… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.1454v2-abstract-full').style.display = 'inline'; document.getElementById('1310.1454v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.1454v2-abstract-full" style="display: none;"> Exclusive production of $蟻^0$ mesons was studied at the COMPASS experiment by scattering 160 GeV/$c$ muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured as a function of $Q^2$, $x_{Bj}$, or $p_{T}^{2}$. The $\sin 蠁_S$ asymmetry is found to be $-0.019 \pm 0.008(stat.) \pm 0.003(syst.)$. All other asymmetries are also found to be of small magnitude and consistent with zero within experimental uncertainties. Very recent calculations using a GPD-based model agree well with the present results. The data is interpreted as evidence for the existence of chiral-odd, transverse generalized parton distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.1454v2-abstract-full').style.display = 'none'; document.getElementById('1310.1454v2-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> 9 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">14 pages, two tables, 5 figures, bibliography updated</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1307.6227">arXiv:1307.6227</a> <span> [<a href="https://arxiv.org/pdf/1307.6227">pdf</a>, <a href="https://arxiv.org/format/1307.6227">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.90.015206">10.1103/PhysRevC.90.015206 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The electric and magnetic form factors of the proton </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=A1+Collaboration"> A1 Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Walcher%2C+T">Th. Walcher</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+P+A+C+A">P. Achenbach C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">L. Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Doria%2C+L">L. Doria</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">A. Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=de+la+Paz%2C+M+G+R">M. G贸mez Rodr铆gues de la Paz</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Makek%2C+M">M. Makek</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">D. G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Nungesser%2C+L">L. Nungesser</a>, <a href="/search/nucl-ex?searchtype=author&query=Pochodzalla%2C+J">J. Pochodzalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Potokar%2C+M">M. Potokar</a>, <a href="/search/nucl-ex?searchtype=author&query=Majos%2C+S+S">S. S谩nchez Majos</a>, <a href="/search/nucl-ex?searchtype=author&query=Schlimme%2C+B+S">B. S. Schlimme</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%A0irca%2C+S">S. 艩irca</a>, <a href="/search/nucl-ex?searchtype=author&query=Weinriefer%2C+M">M. Weinriefer</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="1307.6227v2-abstract-short" style="display: inline;"> The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 \lesssim Q^2 \lesssim 1$\ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $\sim$ 0.37%. These data are used for a coherent new analysis together with all world data of unpolarized and polarized electron scattering from the very smallest to the highes… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.6227v2-abstract-full').style.display = 'inline'; document.getElementById('1307.6227v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1307.6227v2-abstract-full" style="display: none;"> The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 \lesssim Q^2 \lesssim 1$\ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $\sim$ 0.37%. These data are used for a coherent new analysis together with all world data of unpolarized and polarized electron scattering from the very smallest to the highest momentum transfers so far measured. The extracted electric and magnetic form factors provide new insight into their exact shape, deviating from the classical dipole form, and of structure on top of this gross shape. The data reaching very low $Q^2$ values are used for a new determination of the electric and magnetic radii. An empirical determination of the Two-Photon-Exchange (TPE) correction is presented. The implications of this correction on the radii and the question of a directly visible signal of the pion cloud are addressed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1307.6227v2-abstract-full').style.display = 'none'; document.getElementById('1307.6227v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 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">38 pages, 20 figures. Updated data files. PRC version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 90, 015206 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.0952">arXiv:1304.0952</a> <span> [<a href="https://arxiv.org/pdf/1304.0952">pdf</a>, <a href="https://arxiv.org/format/1304.0952">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="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-013-2581-9">10.1140/epjc/s10052-013-2581-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of 危(1385) and 螢(1321) hyperon and antihyperon production in deep inelastic muon scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Adolph%2C+C">C. Adolph</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+M">M. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexakhin%2C+V+Y">V. Yu. Alexakhin</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexandrov%2C+Y">Yu. Alexandrov</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexeev%2C+G+D">G. D. Alexeev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=Austregesilo%2C+A">A. Austregesilo</a>, <a href="/search/nucl-ex?searchtype=author&query=Badelek%2C+B">B. Badelek</a>, <a href="/search/nucl-ex?searchtype=author&query=Balestra%2C+F">F. Balestra</a>, <a href="/search/nucl-ex?searchtype=author&query=Barth%2C+J">J. Barth</a>, <a href="/search/nucl-ex?searchtype=author&query=Baum%2C+G">G. Baum</a>, <a href="/search/nucl-ex?searchtype=author&query=Bedfer%2C+Y">Y. Bedfer</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlin%2C+A">A. Berlin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernhard%2C+J">J. Bernhard</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertini%2C+R">R. Bertini</a>, <a href="/search/nucl-ex?searchtype=author&query=Bicker%2C+K">K. Bicker</a>, <a href="/search/nucl-ex?searchtype=author&query=Bieling%2C+J">J. Bieling</a>, <a href="/search/nucl-ex?searchtype=author&query=Birsa%2C+R">R. Birsa</a>, <a href="/search/nucl-ex?searchtype=author&query=Bisplinghoff%2C+J">J. Bisplinghoff</a>, <a href="/search/nucl-ex?searchtype=author&query=Bordalo%2C+P">P. Bordalo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/nucl-ex?searchtype=author&query=Braun%2C+C">C. Braun</a>, <a href="/search/nucl-ex?searchtype=author&query=Bravar%2C+A">A. Bravar</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressan%2C+A">A. Bressan</a>, <a href="/search/nucl-ex?searchtype=author&query=Buechele%2C+M">M. Buechele</a> , et al. (182 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="1304.0952v2-abstract-short" style="display: inline;"> Large samples of 螞, 危(1385) and 螢(1321) hyperons produced in deep-inelastic muon scattering off a ^6LiD target were collected with the COMPASS experimental setup at CERN. The relative yields of 危(1385)^+, 危(1385)^-, \bar危(1385)^-, \bar危(1385)^+, 螢(1321)^-, and \bar螢(1321)^+ hyperons decaying into 螞(\bar螞)蟺were measured. The heavy hyperon to 螞and heavy antihyperon to \bar螞 yield ratios were found t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.0952v2-abstract-full').style.display = 'inline'; document.getElementById('1304.0952v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.0952v2-abstract-full" style="display: none;"> Large samples of 螞, 危(1385) and 螢(1321) hyperons produced in deep-inelastic muon scattering off a ^6LiD target were collected with the COMPASS experimental setup at CERN. The relative yields of 危(1385)^+, 危(1385)^-, \bar危(1385)^-, \bar危(1385)^+, 螢(1321)^-, and \bar螢(1321)^+ hyperons decaying into 螞(\bar螞)蟺were measured. The heavy hyperon to 螞and heavy antihyperon to \bar螞 yield ratios were found to be in the range 3.8% to 5.6% with a relative uncertainty of about 10%. They were used to tune the parameters relevant for strange particle production of the LEPTO Monte Carlo generator. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.0952v2-abstract-full').style.display = 'none'; document.getElementById('1304.0952v2-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> 16 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">13 pages, 4 figures and 3 tables, 1 Appendix with 3 figures. Version accepted by the Editor</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1108.3533">arXiv:1108.3533</a> <span> [<a href="https://arxiv.org/pdf/1108.3533">pdf</a>, <a href="https://arxiv.org/format/1108.3533">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> </div> </div> <p class="title is-5 mathjax"> Reply to Comment on "High-Precision Determination of the Electric and Magnetic Form Factors of the Proton" </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">L. Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Doria%2C+L">L. Doria</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">A. Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=de+la+Paz%2C+M+G+R">M. G贸mez Rodr铆guez de la Paz</a>, <a href="/search/nucl-ex?searchtype=author&query=Makek%2C+M">M. Makek</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">D. G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Nungesser%2C+L">L. Nungesser</a>, <a href="/search/nucl-ex?searchtype=author&query=Pochodzalla%2C+J">J. Pochodzalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Potokar%2C+M">M. Potokar</a>, <a href="/search/nucl-ex?searchtype=author&query=Majos%2C+S+S">S. S谩nchez Majos</a>, <a href="/search/nucl-ex?searchtype=author&query=Schlimme%2C+B+S">B. S. Schlimme</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%A0irca%2C+S">S. 艩irca</a>, <a href="/search/nucl-ex?searchtype=author&query=Walcher%2C+T">Th. Walcher</a>, <a href="/search/nucl-ex?searchtype=author&query=Weinriefer%2C+M">M. Weinriefer</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="1108.3533v1-abstract-short" style="display: inline;"> In arXiv:1108.3058v1 [nucl-ex], Arrington criticizes the Coulomb corrections we applied in the analysis of high precision form factor data (see Phys.Rev.Lett.105:242001, 2010, arXiv:1007.5076v3 [nucl-ex]). We show, by comparing different calculations cited in the Comment, that the criticism of the Comment neglects the large uncertainty of "more modern" TPE corrections. This uncertainty has also be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.3533v1-abstract-full').style.display = 'inline'; document.getElementById('1108.3533v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1108.3533v1-abstract-full" style="display: none;"> In arXiv:1108.3058v1 [nucl-ex], Arrington criticizes the Coulomb corrections we applied in the analysis of high precision form factor data (see Phys.Rev.Lett.105:242001, 2010, arXiv:1007.5076v3 [nucl-ex]). We show, by comparing different calculations cited in the Comment, that the criticism of the Comment neglects the large uncertainty of "more modern" TPE corrections. This uncertainty has also been seen in recent polarized measurements. We rerun our analysis using one of these calculations. The results show that the Comment exaggerates the quantitative effect at small Q^2. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1108.3533v1-abstract-full').style.display = 'none'; document.getElementById('1108.3533v1-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 August, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2011. </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">1 page, 2 figure, To appear as a Reply Comment in Physical Review Letters</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1007.5076">arXiv:1007.5076</a> <span> [<a href="https://arxiv.org/pdf/1007.5076">pdf</a>, <a href="https://arxiv.org/ps/1007.5076">ps</a>, <a href="https://arxiv.org/format/1007.5076">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.105.242001">10.1103/PhysRevLett.105.242001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-precision determination of the electric and magnetic form factors of the proton </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Debenjak%2C+L">L. Debenjak</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Doria%2C+L">L. Doria</a>, <a href="/search/nucl-ex?searchtype=author&query=Esser%2C+A">A. Esser</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=de+la+Paz%2C+M+G+R">M. G贸mez Rodr铆guez de la Paz</a>, <a href="/search/nucl-ex?searchtype=author&query=Makek%2C+M">M. Makek</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Middleton%2C+D+G">D. G. Middleton</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Nungesser%2C+L">L. Nungesser</a>, <a href="/search/nucl-ex?searchtype=author&query=Pochodzalla%2C+J">J. Pochodzalla</a>, <a href="/search/nucl-ex?searchtype=author&query=Potokar%2C+M">M. Potokar</a>, <a href="/search/nucl-ex?searchtype=author&query=Majos%2C+S+S">S. S谩nchez Majos</a>, <a href="/search/nucl-ex?searchtype=author&query=Schlimme%2C+B+S">B. S. Schlimme</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%A0irca%2C+S">S. 艩irca</a>, <a href="/search/nucl-ex?searchtype=author&query=Walcher%2C+T">Th. Walcher</a>, <a href="/search/nucl-ex?searchtype=author&query=Weinriefer%2C+M">M. Weinriefer</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="1007.5076v3-abstract-short" style="display: inline;"> New precise results of a measurement of the elastic electron-proton scattering cross section performed at the Mainz Microtron MAMI are presented. About 1400 cross sections were measured with negative four-momentum transfers squared up to Q^2=1 (GeV/c)^2 with statistical errors below 0.2%. The electric and magnetic form factors of the proton were extracted by fits of a large variety of form factor… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.5076v3-abstract-full').style.display = 'inline'; document.getElementById('1007.5076v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1007.5076v3-abstract-full" style="display: none;"> New precise results of a measurement of the elastic electron-proton scattering cross section performed at the Mainz Microtron MAMI are presented. About 1400 cross sections were measured with negative four-momentum transfers squared up to Q^2=1 (GeV/c)^2 with statistical errors below 0.2%. The electric and magnetic form factors of the proton were extracted by fits of a large variety of form factor models directly to the cross sections. The form factors show some features at the scale of the pion cloud. The charge and magnetic radii are determined to be r_E=0.879(5)(stat.)(4)(syst.)(2)(model)(4)(group) fm and r_M=0.777(13)(stat.)(9)(syst.)(5)(model)(2)(group) fm. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1007.5076v3-abstract-full').style.display = 'none'; document.getElementById('1007.5076v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 July, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2010. </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, 2 figures, published in Phys. Rev. Lett. v3: added references, updated text, color figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.105:242001,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0803.0911">arXiv:0803.0911</a> <span> [<a href="https://arxiv.org/pdf/0803.0911">pdf</a>, <a href="https://arxiv.org/ps/0803.0911">ps</a>, <a href="https://arxiv.org/format/0803.0911">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="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/i2008-10609-3">10.1140/epja/i2008-10609-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new measurement of the structure functions $P_{LL}-P_{TT}/epsilon$ and $P_{LT}$ in virtual Compton scattering at $Q^2=$ 0.33 (GeV/c)$^2$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Collaboration%2C+T+M">The MAMI-A1 Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=Janssens%2C+P">P. Janssens</a>, <a href="/search/nucl-ex?searchtype=author&query=Doria%2C+L">L. Doria</a>, <a href="/search/nucl-ex?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-ex?searchtype=author&query=Gayoso%2C+C+A">C. Ayerbe Gayoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernauer%2C+J+C">J. C. Bernauer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bensafa%2C+I+K">I. K. Bensafa</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Burtin%2C+E">E. Burtin</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Hose%2C+N">N. D'Hose</a>, <a href="/search/nucl-ex?searchtype=author&query=Defa%C3%BF%2C+X">X. Defa每</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Fonvieille%2C+H">H. Fonvieille</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Laveissi%C3%A8re%2C+G">G. Laveissi猫re</a>, <a href="/search/nucl-ex?searchtype=author&query=Makek%2C+M">M. Makek</a>, <a href="/search/nucl-ex?searchtype=author&query=Marroncle%2C+J">J. Marroncle</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Nungesser%2C+L">L. Nungesser</a> , et al. (15 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="0803.0911v2-abstract-short" style="display: inline;"> The cross section of the $ep \to e' p' 纬$ reaction has been measured at $Q^2 = 0.33$ (GeV/c)$^2$. The experiment was performed using the electron beam of the MAMI accelerator and the standard detector setup of the A1 Collaboration. The cross section is analyzed using the low-energy theorem for virtual Compton scattering, yielding a new determination of the two structure functions… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0803.0911v2-abstract-full').style.display = 'inline'; document.getElementById('0803.0911v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0803.0911v2-abstract-full" style="display: none;"> The cross section of the $ep \to e' p' 纬$ reaction has been measured at $Q^2 = 0.33$ (GeV/c)$^2$. The experiment was performed using the electron beam of the MAMI accelerator and the standard detector setup of the A1 Collaboration. The cross section is analyzed using the low-energy theorem for virtual Compton scattering, yielding a new determination of the two structure functions $P_LL}-P_{TT}/epsilon$ and $P_{LT}$ which are linear combinations of the generalized polarizabilities of the proton. We find somewhat larger values than in the previous investigation at the same $Q^2$. This difference, however, is purely due to our more refined analysis of the data. The results tend to confirm the non-trivial $Q^2$-evolution of the generalized polarizabilities and call for more measurements in the low-$Q^2$ region ($\le$ 1 (GeV/c)$^2$). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0803.0911v2-abstract-full').style.display = 'none'; document.getElementById('0803.0911v2-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> 16 May, 2008; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 March, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2008. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 10 figures. EPJA version. slight revisions in the text and figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.A37:1,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0705.3816">arXiv:0705.3816</a> <span> [<a href="https://arxiv.org/pdf/0705.3816">pdf</a>, <a href="https://arxiv.org/ps/0705.3816">ps</a>, <a href="https://arxiv.org/format/0705.3816">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> </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/i2007-10644-6">10.1140/epja/i2007-10644-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Separated cross sections in 蟺^0 electroproduction at threshold at Q^2 = 0.05 GeV^2/c^2 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Weis%2C+M">M. Weis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A+M">A. M. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">M. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">P. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Pavan%2C+M+M">M. M. Pavan</a>, <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">Th. Pospischil</a>, <a href="/search/nucl-ex?searchtype=author&query=Potokar%2C+M">M. Potokar</a>, <a href="/search/nucl-ex?searchtype=author&query=Rosner%2C+G">G. Rosner</a>, <a href="/search/nucl-ex?searchtype=author&query=Schmieden%2C+H">H. Schmieden</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="0705.3816v1-abstract-short" style="display: inline;"> The differential cross sections 蟽_0=蟽_T+蔚蟽_L, 蟽_{LT}, and 蟽_{TT} of 蟺^0 electroproduction from the proton were measured from threshold up to an additional center of mass energy of 40 MeV, at a value of the photon four-momentum transfer of Q^2= 0.05 GeV^2/c^2 and a center of mass angle of 胃=90^\circ. By an additional out-of-plane measurement with polarized electrons 蟽_{LT'} was determined. This s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0705.3816v1-abstract-full').style.display = 'inline'; document.getElementById('0705.3816v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0705.3816v1-abstract-full" style="display: none;"> The differential cross sections 蟽_0=蟽_T+蔚蟽_L, 蟽_{LT}, and 蟽_{TT} of 蟺^0 electroproduction from the proton were measured from threshold up to an additional center of mass energy of 40 MeV, at a value of the photon four-momentum transfer of Q^2= 0.05 GeV^2/c^2 and a center of mass angle of 胃=90^\circ. By an additional out-of-plane measurement with polarized electrons 蟽_{LT'} was determined. This showed for the first time the cusp effect above the 蟺^+ threshold in the imaginary part of the s-wave. The predictions of Heavy Baryon Chiral Perturbation Theory are in disagreement with these data. On the other hand, the data are somewhat better predicted by the MAID phenomenological model and are in good agreement with the dynamical model DMT. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0705.3816v1-abstract-full').style.display = 'none'; document.getElementById('0705.3816v1-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, 2007; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2007. </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, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.A38:27-33,2008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0507014">arXiv:nucl-ex/0507014</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0507014">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0507014">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0507014">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> </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/i2005-10212-2">10.1140/epja/i2005-10212-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the LT-asymmetry in 蟺^0 electroproduction at the energy of the 螖(1232) resonance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Elsner%2C+D">D. Elsner</a>, <a href="/search/nucl-ex?searchtype=author&query=S%C3%BCle%2C+A">A. S眉le</a>, <a href="/search/nucl-ex?searchtype=author&query=Barneo%2C+P">P. Barneo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M">M. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Drechsel%2C+D">D. Drechsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Gr%C3%B6zinger%2C+S">S. Gr枚zinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalov%2C+S">S. Kamalov</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+F+H">F. H. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">M. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">P. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">Th. Pospischil</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="nucl-ex/0507014v2-abstract-short" style="display: inline;"> The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region of W=1232 MeV. From measurements left and right of q, cross section asymmetries 蟻_LT have been obtained in forward kinematics 蟻_LT(胃_蟺^0=20deg) = (-11.68 +/- 2.36_stat +/- 2.36_sys)$ and backward kinematics 蟻_LT(胃_蟺^0=160deg) =(12.18 +/- 0.27_stat +/- 0.82_sys). Multipole ratios \Re(S_1+^* M_1+)/|M_1+|^2 and \Re(S_0+^*… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0507014v2-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0507014v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0507014v2-abstract-full" style="display: none;"> The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region of W=1232 MeV. From measurements left and right of q, cross section asymmetries 蟻_LT have been obtained in forward kinematics 蟻_LT(胃_蟺^0=20deg) = (-11.68 +/- 2.36_stat +/- 2.36_sys)$ and backward kinematics 蟻_LT(胃_蟺^0=160deg) =(12.18 +/- 0.27_stat +/- 0.82_sys). Multipole ratios \Re(S_1+^* M_1+)/|M_1+|^2 and \Re(S_0+^* M_1+)/|M_1+|^2 were determined in the framework of the MAID2003 model. The results are in agreement with older data. The unusally strong negative \Re(S_0+^* M_1+)/|M_1+|^2 required to bring also the result of Kalleicher et al. in accordance with the rest of the data is almost excluded. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0507014v2-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0507014v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 January, 2006; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 July, 2005; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2005. </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, 7 figures, 4 tables. Changed content. Accepted for publication in 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. A27 (2006) 91-97 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0408013">arXiv:nucl-ex/0408013</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0408013">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0408013">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0408013">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> </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/i2004-10040-x">10.1140/epja/i2004-10040-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Rlt and Atl in the 4He(e,e'p)3H Reaction at pmiss of 130-300 MeV/c </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aniol%2C+K+A">K. A. Aniol</a>, <a href="/search/nucl-ex?searchtype=author&query=Epstein%2C+M+B">M. B. Epstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Gama%2C+E">E. Gama</a>, <a href="/search/nucl-ex?searchtype=author&query=Margaziotis%2C+D+J">D. J. Margaziotis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertozzi%2C+W">W. Bertozzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J+P">J. P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dale%2C+D">D. Dale</a>, <a href="/search/nucl-ex?searchtype=author&query=Florizone%2C+R+E+J">R. E. J. Florizone</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilad%2C+S">S. Gilad</a>, <a href="/search/nucl-ex?searchtype=author&query=Sarty%2C+A+J">A. J. Sarty</a>, <a href="/search/nucl-ex?searchtype=author&query=Templon%2C+J+A">J. A. Templon</a>, <a href="/search/nucl-ex?searchtype=author&query=Van+Verst%2C+S+P">S. P. Van Verst</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhao%2C+J">J. Zhao</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+Z+L">Z. L. Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W+U">W. U. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Geiges%2C+R">R. Geiges</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a> , et al. (20 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="nucl-ex/0408013v1-abstract-short" style="display: inline;"> We have measured the 4He(e,e'p)3H reaction at missing momenta of 130-300 MeV/c using the three-spectrometer facility at the Mainz microtron MAMI. Data were taken in perpendicular kinematics to allow us to determine the response function Rlt and the asymmetry term Atl. The data are compared to both relativistic and non-relativistic calculations. </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0408013v1-abstract-full" style="display: none;"> We have measured the 4He(e,e'p)3H reaction at missing momenta of 130-300 MeV/c using the three-spectrometer facility at the Mainz microtron MAMI. Data were taken in perpendicular kinematics to allow us to determine the response function Rlt and the asymmetry term Atl. The data are compared to both relativistic and non-relativistic calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0408013v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0408013v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 August, 2004; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2004. </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 the European Physical Journal A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.A22:449-454,2004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0303015">arXiv:nucl-ex/0303015</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0303015">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0303015">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0303015">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> </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/S0370-2693(03)00725-1">10.1016/S0370-2693(03)00725-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The neutron charge form factor and target analyzing powers from pol.3He(pol e,e'n)-scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">P. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=Carasco%2C+C+C">C. C. Carasco</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Golak%2C+J">J. Golak</a>, <a href="/search/nucl-ex?searchtype=author&query=Gloeckle%2C+W">W. Gloeckle</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauger%2C+M">M. Hauger</a>, <a href="/search/nucl-ex?searchtype=author&query=Heil%2C+W">W. Heil</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Jourdan%2C+J">J. Jourdan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamada%2C+H">H. Kamada</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+A">A. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">M. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Krusche%2C+B">B. Krusche</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Mueller%2C+U">U. Mueller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Nogga%2C+A">A. Nogga</a> , et al. (18 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="nucl-ex/0303015v3-abstract-short" style="display: inline;"> The charge form factor of the neutron has been determined from asymmetries measured in quasi--elastic pol.3He(pol e,e'n) at a momentum transfer of 0.67(GeV/c)^2. In addition, the target analyzing power, A_y^o, has been measured to study effects of final state interactions and meson exchange currents. </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0303015v3-abstract-full" style="display: none;"> The charge form factor of the neutron has been determined from asymmetries measured in quasi--elastic pol.3He(pol e,e'n) at a momentum transfer of 0.67(GeV/c)^2. In addition, the target analyzing power, A_y^o, has been measured to study effects of final state interactions and meson exchange currents. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0303015v3-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0303015v3-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> 30 June, 2003; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 March, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2003. </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">10 pages, 1 figure</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett. B564 (2003) 199-204 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0301016">arXiv:nucl-ex/0301016</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0301016">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0301016">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0301016">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> </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/S0370-2693(03)00306-X">10.1016/S0370-2693(03)00306-X <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Final State Interaction Effects in pol 3He(pol e,e'p) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Carasco%2C+C">C. Carasco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">P. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Golak%2C+J">J. Golak</a>, <a href="/search/nucl-ex?searchtype=author&query=Gloeckle%2C+W">W. Gloeckle</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauger%2C+M">M. Hauger</a>, <a href="/search/nucl-ex?searchtype=author&query=Heil%2C+W">W. Heil</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Jourdan%2C+J">J. Jourdan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamada%2C+H">H. Kamada</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+A">A. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">M. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Mueller%2C+U">U. Mueller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Nogga%2C+A">A. Nogga</a> , et al. (18 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="nucl-ex/0301016v3-abstract-short" style="display: inline;"> Asymmetries in quasi-elastic pol 3He(pol e,e'p) have been measured at a momentum transfer of 0.67 (GeV/c)^2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the 3He-ground state and an approximate treatment of final state interactions in the contin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0301016v3-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0301016v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0301016v3-abstract-full" style="display: none;"> Asymmetries in quasi-elastic pol 3He(pol e,e'p) have been measured at a momentum transfer of 0.67 (GeV/c)^2 and are compared to a calculation which takes into account relativistic kinematics in the final state and a relativistic one-body current operator. With an exact solution of the Faddeev equation for the 3He-ground state and an approximate treatment of final state interactions in the continuum good agreement is found with the experimental data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0301016v3-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0301016v3-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 February, 2003; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 January, 2003; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2003. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 6 figures, submitted to Phys. Lett. B, revised version, sensitivity study to relativity and NN-potential added</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B559:41-48,2003 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0112009">arXiv:nucl-ex/0112009</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0112009">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0112009">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0112009">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.88.142001">10.1103/PhysRevLett.88.142001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the beam-helicity asymmetry in the p(e_pol,e'p)pi_0 reaction at the energy of the Delta(1232) resonance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M">M. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Drechsel%2C+D">D. Drechsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Elsner%2C+D">D. Elsner</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Groezinger%2C+S">S. Groezinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Hedicke%2C+S">S. Hedicke</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalov%2C+S+S">S. S. Kamalov</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+F">F. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">P. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=Mueller%2C+U">U. Mueller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a> , et al. (10 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="nucl-ex/0112009v1-abstract-short" style="display: inline;"> In a p(e_pol,e'p)pi_0 out-of-plane coincidence experiment at the 3-spectrometer setup of the Mainz Microtron MAMI, the beam-helicity asymmetry has been precisely measured around the energy of the Delta(1232) resonance and Q^2 = 0.2 (GeV/c)^2. The results are in disagreement with three up-to-date model calculations. This is interpreted as lack of understanding of the non-resonant background, whic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0112009v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0112009v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0112009v1-abstract-full" style="display: none;"> In a p(e_pol,e'p)pi_0 out-of-plane coincidence experiment at the 3-spectrometer setup of the Mainz Microtron MAMI, the beam-helicity asymmetry has been precisely measured around the energy of the Delta(1232) resonance and Q^2 = 0.2 (GeV/c)^2. The results are in disagreement with three up-to-date model calculations. This is interpreted as lack of understanding of the non-resonant background, which in dynamical models is related to the pion cloud. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0112009v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0112009v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2001. </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, 2 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett. 88 (2002) 142001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0108020">arXiv:nucl-ex/0108020</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0108020">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0108020">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0108020">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.88.012301">10.1103/PhysRevLett.88.012301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutral pion threshold production at Q^2=0.05 GeV^2/c^2 and Chiral Perturbation Theory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">Harald Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">Peter Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">Dagmar Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J枚rg Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A+M">Aron M. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">Klemen Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">Ralph B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Clawiter%2C+N">Norbert Clawiter</a>, <a href="/search/nucl-ex?searchtype=author&query=Derber%2C+S">Sabine Derber</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">Matthias Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">Michael O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">Ingo Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">Jan M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J枚rg Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">Peter Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">Marco Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">Michael Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">Klaus Werner Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Kuss%2C+M">Michael Kuss</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">Arnd Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">Pascal Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=Miskimen%2C+R+A">Rory A. Miskimen</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">Ulrich M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">Reiner Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Pavan%2C+M+M">Marcello M. Pavan</a> , et al. (9 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="nucl-ex/0108020v2-abstract-short" style="display: inline;"> New data are presented on the p(e,e'p)蟺^0 reaction at threshold at a four-momentum transfer of Q^2=0.05 GeV^2/c^2. The data were taken with the three-spectrometer setup of the A1 Collaboration at the Mainz Microtron MAMI. The complete center of mass solid angle was covered up to a center of mass energy of 4 MeV above threshold. Combined with measurements at three different values of the virtual… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0108020v2-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0108020v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0108020v2-abstract-full" style="display: none;"> New data are presented on the p(e,e'p)蟺^0 reaction at threshold at a four-momentum transfer of Q^2=0.05 GeV^2/c^2. The data were taken with the three-spectrometer setup of the A1 Collaboration at the Mainz Microtron MAMI. The complete center of mass solid angle was covered up to a center of mass energy of 4 MeV above threshold. Combined with measurements at three different values of the virtual photon polarization 蔚, the structure functions 蟽_T, 蟽_L, 蟽_{TT}, and 蟽_{TL} are determined. The results are compared with calculations in Heavy Baryon Chiral Perturbation Theory and with a phenomenological model. The measured cross section is significantly smaller than both predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0108020v2-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0108020v2-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 November, 2001; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 August, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2001. </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">4 pages, 3 Postscript figures, latex2e, v2 minor changes</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett. 88 (2002) 012301 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0107016">arXiv:nucl-ex/0107016</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0107016">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0107016">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0107016">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> </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/S0370-2693(01)01386-7">10.1016/S0370-2693(01)01386-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precise Neutron Magnetic Form Factors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Kubon%2C+G">G. Kubon</a>, <a href="/search/nucl-ex?searchtype=author&query=Anklin%2C+H">H. Anklin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W+U">W. U. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Carasco%2C+C">C. Carasco</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauger%2C+M">M. Hauger</a>, <a href="/search/nucl-ex?searchtype=author&query=Honegger%2C+A">A. Honegger</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Jourdan%2C+J">J. Jourdan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Mueller%2C+U">U. Mueller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">R. Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Normand%2C+C">Ch. Normand</a>, <a href="/search/nucl-ex?searchtype=author&query=Petitjean%2C+T">Th. Petitjean</a>, <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">Th. Pospischil</a> , et al. (14 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="nucl-ex/0107016v2-abstract-short" style="display: inline;"> Precise data on the neutron magnetic form factor G_{mn} have been obtained with measurements of the ratio of cross sections of D(e,e'n) and D(e,e'p) up to momentum transfers of Q^2 = 0.9 (GeV/c)^2. Data with typical uncertainties of 1.5% are presented. These data allow for the first time to extract a precise value of the magnetic radius of the neutron. </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0107016v2-abstract-full" style="display: none;"> Precise data on the neutron magnetic form factor G_{mn} have been obtained with measurements of the ratio of cross sections of D(e,e'n) and D(e,e'p) up to momentum transfers of Q^2 = 0.9 (GeV/c)^2. Data with typical uncertainties of 1.5% are presented. These data allow for the first time to extract a precise value of the magnetic radius of the neutron. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0107016v2-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0107016v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2001; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 July, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2001. </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">10 pages, 2 figures, submitted to Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B524:26-32,2002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0011008">arXiv:nucl-ex/0011008</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0011008">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0011008">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0011008">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> </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/S0370-2693(01)00052-1">10.1016/S0370-2693(01)00052-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Polarization transfer in the $^{4}$He$(\vec{e},e' \vec{p}^{3}$H reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Dieterich%2C+S">S. Dieterich</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Derber%2C+S">S. Derber</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M">M. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilman%2C+R">R. Gilman</a>, <a href="/search/nucl-ex?searchtype=author&query=Glashausser%2C+C">C. Glashausser</a>, <a href="/search/nucl-ex?searchtype=author&query=Hauger%2C+M">M. Hauger</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Jourdan%2C+J">J. Jourdan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kelly%2C+J+J">J. J. Kelly</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">M. Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozlov%2C+A">A. Kozlov</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Kumbartzki%2C+G">G. Kumbartzki</a>, <a href="/search/nucl-ex?searchtype=author&query=Lac%2C+J">J. Lac</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a> , et al. (17 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="nucl-ex/0011008v1-abstract-short" style="display: inline;"> Polarization transfer in the 4He(e,e'p)3H reaction at a Q^2 of 0.4 (GeV/c)^2 was measured at the Mainz Microtron MAMI. The ratio of the transverse to the longitudinal polarization components of the ejected protons was compared with the same ratio for elastic ep scattering. The results are consistent with a recent fully relativistic calculation which includes a predicted medium modification of th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0011008v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0011008v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0011008v1-abstract-full" style="display: none;"> Polarization transfer in the 4He(e,e'p)3H reaction at a Q^2 of 0.4 (GeV/c)^2 was measured at the Mainz Microtron MAMI. The ratio of the transverse to the longitudinal polarization components of the ejected protons was compared with the same ratio for elastic ep scattering. The results are consistent with a recent fully relativistic calculation which includes a predicted medium modification of the proton form factor based on a quark-meson coupling model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0011008v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0011008v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 November, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2000. </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, Latex, 2 postscript figures, submitted to Physics Letters B</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B500:47-52,2001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0010020">arXiv:nucl-ex/0010020</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0010020">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0010020">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0010020">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.86.2959">10.1103/PhysRevLett.86.2959 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the recoil polarization in the p (\vec e, e' \vec p) pi^0 reaction at the 螖(1232) resonance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">Th. Pospischil</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J. Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=Derber%2C+S">S. Derber</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M">M. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Drechsel%2C+D">D. Drechsel</a>, <a href="/search/nucl-ex?searchtype=author&query=Elsner%2C+D">D. Elsner</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Geiges%2C+R">R. Geiges</a>, <a href="/search/nucl-ex?searchtype=author&query=Hedicke%2C+S">S. Hedicke</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Kamalov%2C+S+S">S. S. Kamalov</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+F">F. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Lac%2C+J">J. Lac</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=McIntyre%2C+J">J. McIntyre</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a> , et al. (17 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="nucl-ex/0010020v1-abstract-short" style="display: inline;"> The recoil proton polarization has been measured in the p (\vec e,e'\vec p) pi^0 reaction in parallel kinematics around W = 1232 MeV, Q^2 = 0.121 (GeV/c)^2 and epsilon = 0.718 using the polarized c.w. electron beam of the Mainz Microtron. Due to the spin precession in a magnetic spectrometer, all three proton polarization components P_x/P_e = (-11.4 \pm 1.3 \pm 1.4) %, P_y = (-43.1 \pm 1.3 \pm 2… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010020v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0010020v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0010020v1-abstract-full" style="display: none;"> The recoil proton polarization has been measured in the p (\vec e,e'\vec p) pi^0 reaction in parallel kinematics around W = 1232 MeV, Q^2 = 0.121 (GeV/c)^2 and epsilon = 0.718 using the polarized c.w. electron beam of the Mainz Microtron. Due to the spin precession in a magnetic spectrometer, all three proton polarization components P_x/P_e = (-11.4 \pm 1.3 \pm 1.4) %, P_y = (-43.1 \pm 1.3 \pm 2.2) %, and P_z/P_e = (56.2 \pm 1.5 \pm 2.6) % could be measured simultaneously. The Coulomb quadrupole to magnetic dipole ratio CMR = (-6.4\pm 0.7_{stat}\pm 0.8_{syst}) % was determined from P_x in the framework of the Mainz Unitary Isobar Model. The consistency among the reduced polarizations and the extraction of the ratio of longitudinal to transverse response is discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010020v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0010020v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 October, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2000. </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 LaTeX, 1 table, 2 eps figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.86:2959-2962,2001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0010008">arXiv:nucl-ex/0010008</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0010008">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0010008">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0010008">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> </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/S0370-2693(00)01396-4">10.1016/S0370-2693(00)01396-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Coherent 蟺^0 threshold production from the deuteron at Q^2 = 0.1 GeV^2/c^2 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">Ingo Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">Peter Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">Dagmar Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bermuth%2C+J">J枚rg Bermuth</a>, <a href="/search/nucl-ex?searchtype=author&query=Bernstein%2C+A+M">Aron M. Bernstein</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">Klemen Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">Ralph B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Clawiter%2C+N">Norbert Clawiter</a>, <a href="/search/nucl-ex?searchtype=author&query=Derber%2C+S">Sabine Derber</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">Matthias Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">Michael O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">Jan M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J枚rg Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">Marco Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Kohl%2C+M">Michael Kohl</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozlov%2C+A">Alexander Kozlov</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">Arnd Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">Harald Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+P">Pascal Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">Ulrich M眉ller</a>, <a href="/search/nucl-ex?searchtype=author&query=Neuhausen%2C+R">Reiner Neuhausen</a>, <a href="/search/nucl-ex?searchtype=author&query=Pavan%2C+M">Marcello Pavan</a>, <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">Thomas Pospischil</a>, <a href="/search/nucl-ex?searchtype=author&query=Potokar%2C+M">M. Potokar</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="nucl-ex/0010008v2-abstract-short" style="display: inline;"> First data on coherent threshold 蟺^0 electroproduction from the deuteron taken by the A1 Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q^2=-0.1 GeV^2/c^2 the full solid angle was covered up to a center-of-mass energy of 4 MeV above threshold. By means of a Rosenbluth separation the longitudinal threshold s wave multipole and an upper limit for the transv… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010008v2-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0010008v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0010008v2-abstract-full" style="display: none;"> First data on coherent threshold 蟺^0 electroproduction from the deuteron taken by the A1 Collaboration at the Mainz Microtron MAMI are presented. At a four-momentum transfer of q^2=-0.1 GeV^2/c^2 the full solid angle was covered up to a center-of-mass energy of 4 MeV above threshold. By means of a Rosenbluth separation the longitudinal threshold s wave multipole and an upper limit for the transverse threshold s wave multipole could be extracted and compared to predictions of Heavy Baryon Chiral Perturbation Theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010008v2-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0010008v2-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, 2001; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 October, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2000. </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, 7 figures, latex2e</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B499:238-244,2001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0010007">arXiv:nucl-ex/0010007</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0010007">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0010007">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0010007">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> </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/S0168-9002(01)01955-6">10.1016/S0168-9002(01)01955-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The focal plane proton-polarimeter for the 3-spectrometer setup at MAMI </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Pospischil%2C+T">T. Pospischil</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Baumann%2C+D">D. Baumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Boehm%2C+R">R. Boehm</a>, <a href="/search/nucl-ex?searchtype=author&query=Bohinc%2C+K">K. Bohinc</a>, <a href="/search/nucl-ex?searchtype=author&query=Clawiter%2C+N">N. Clawiter</a>, <a href="/search/nucl-ex?searchtype=author&query=Ding%2C+M">M. Ding</a>, <a href="/search/nucl-ex?searchtype=author&query=Derber%2C+S">S. Derber</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M">M. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Elsner%2C+D">D. Elsner</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Geiges%2C+R">R. Geiges</a>, <a href="/search/nucl-ex?searchtype=author&query=Groezinger%2C+S">S. Groezinger</a>, <a href="/search/nucl-ex?searchtype=author&query=Hamdorf%2C+M">M. Hamdorf</a>, <a href="/search/nucl-ex?searchtype=author&query=Hedicke%2C+S">S. Hedicke</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Jourdan%2C+J">J. Jourdan</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Klein%2C+F">F. Klein</a>, <a href="/search/nucl-ex?searchtype=author&query=Koenig%2C+P">P. Koenig</a>, <a href="/search/nucl-ex?searchtype=author&query=Kozlov%2C+A">A. Kozlov</a>, <a href="/search/nucl-ex?searchtype=author&query=Kramer%2C+H">H. Kramer</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a> , et al. (24 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="nucl-ex/0010007v1-abstract-short" style="display: inline;"> For experiments of the type A(\vec e,e'\vec p) the 3-spectrometer setup of the A1 collaboration at MAMI has been supplemented by a focal plane proton-polarimeter. To this end, a carbon analyzer of variable thickness and two double-planes of horizontal drift chambers have been added to the standard detector system of Spectrometer A. Due to the spin precession in the spectrometer magnets, all thre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010007v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0010007v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0010007v1-abstract-full" style="display: none;"> For experiments of the type A(\vec e,e'\vec p) the 3-spectrometer setup of the A1 collaboration at MAMI has been supplemented by a focal plane proton-polarimeter. To this end, a carbon analyzer of variable thickness and two double-planes of horizontal drift chambers have been added to the standard detector system of Spectrometer A. Due to the spin precession in the spectrometer magnets, all three polarization components at the target can be measured simultaneously. The performance of the polarimeter has been studied using elastic p(e,e'p) scattering. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0010007v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0010007v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 October, 2000; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2000. </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">23 pages LaTeX, 13 ps figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth. A483 (2002) 713-725 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/9908004">arXiv:nucl-ex/9908004</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/9908004">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/9908004">ps</a>, <a href="https://arxiv.org/format/nucl-ex/9908004">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.83.2308">10.1103/PhysRevLett.83.2308 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High-precision Studies of the $^{\bf{3}}$He(e,e$^{\bf{\prime}}$p) Reaction at the Quasielastic Peak </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Florizone%2C+R+E+J">R. E. J. Florizone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertozzi%2C+W">W. Bertozzi</a>, <a href="/search/nucl-ex?searchtype=author&query=Chen%2C+J+P">J. P. Chen</a>, <a href="/search/nucl-ex?searchtype=author&query=Dale%2C+D">D. Dale</a>, <a href="/search/nucl-ex?searchtype=author&query=Gilad%2C+S">S. Gilad</a>, <a href="/search/nucl-ex?searchtype=author&query=Sarty%2C+A+J">A. J. Sarty</a>, <a href="/search/nucl-ex?searchtype=author&query=Templon%2C+J+A">J. A. Templon</a>, <a href="/search/nucl-ex?searchtype=author&query=Van+Verst%2C+S+P">S. P. Van Verst</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhao%2C+J">J. Zhao</a>, <a href="/search/nucl-ex?searchtype=author&query=Zhou%2C+Z+-">Z. -L. Zhou</a>, <a href="/search/nucl-ex?searchtype=author&query=Bartsch%2C+P">P. Bartsch</a>, <a href="/search/nucl-ex?searchtype=author&query=Boeglin%2C+W+U">W. U. Boeglin</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%B6hm%2C+R">R. B枚hm</a>, <a href="/search/nucl-ex?searchtype=author&query=Distler%2C+M+O">M. O. Distler</a>, <a href="/search/nucl-ex?searchtype=author&query=Ewald%2C+I">I. Ewald</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J">J. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Friedrich%2C+J+M">J. M. Friedrich</a>, <a href="/search/nucl-ex?searchtype=author&query=Geiges%2C+R">R. Geiges</a>, <a href="/search/nucl-ex?searchtype=author&query=Jennewein%2C+P">P. Jennewein</a>, <a href="/search/nucl-ex?searchtype=author&query=Kahrau%2C+M">M. Kahrau</a>, <a href="/search/nucl-ex?searchtype=author&query=Krygier%2C+K+W">K. W. Krygier</a>, <a href="/search/nucl-ex?searchtype=author&query=Liesenfeld%2C+A">A. Liesenfeld</a>, <a href="/search/nucl-ex?searchtype=author&query=Merkel%2C+H">H. Merkel</a>, <a href="/search/nucl-ex?searchtype=author&query=Merle%2C+K">K. Merle</a>, <a href="/search/nucl-ex?searchtype=author&query=M%C3%BCller%2C+U">U. M眉ller</a> , et al. (16 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="nucl-ex/9908004v1-abstract-short" style="display: inline;"> Precision studies of the reaction $^{3}$He(e,e$^\prime$p) using the three-spectrometer facility at the Mainz microtron MAMI are presented. All data are for quasielastic kinematics at $|\vec{q} | =685$ MeV/c. Absolute cross sections were measured at three electron kinematics. For the measured missing momenta range from 10 to 165 MeV/c, no strength is observed for missing energies higher than 20 M… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/9908004v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/9908004v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/9908004v1-abstract-full" style="display: none;"> Precision studies of the reaction $^{3}$He(e,e$^\prime$p) using the three-spectrometer facility at the Mainz microtron MAMI are presented. All data are for quasielastic kinematics at $|\vec{q} | =685$ MeV/c. Absolute cross sections were measured at three electron kinematics. For the measured missing momenta range from 10 to 165 MeV/c, no strength is observed for missing energies higher than 20 MeV. Distorted momentum distributions were extracted for the two-body breakup and the continuum. The longitudinal and transverse behavior was studied by measuring the cross section for three photon polarizations. The longitudinal and transverse nature of the cross sections is well described by a currently accepted and widely used prescription of the off-shell electron-nucleon cross-section. The results are compared to modern three-body calculations and to previous data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/9908004v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/9908004v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 August, 1999; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 1999. </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">4 pages, 3 figures. Submitted for publication in Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Rev.Lett.83:2308,1999 </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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