Revealing Color Forces with Transverse Polarized Electron Scattering

التفاصيل البيبلوغرافية
العنوان: Revealing Color Forces with Transverse Polarized Electron Scattering
المؤلفون: C. D. Keith, T. Walton, H. Baghdasaryan, Satoshi Nakamura, T. Horn, G. R. Smith, S. Danagoulian, Michael Kohl, P. Carter, L. Pentchev, P. Monaghan, Ronald Gilman, Chunhui Chen, X. Qiu, H. Yao, P. Solvignon, M. Jones, B. Sawatzky, C. Butuceanu, S. Riordan, Z. Ye, Amrendra Narayan, P. M. King, J. Gomez, D. Gaskell, Joerg Reinhold, M. H. Shabestari, Douglas Higinbotham, M. K. Jones, D. G. Meekins, A. Daniel, E. J. Brash, J. Mulholland, Tomofumi Maruta, A. Mkrtchyan, J. A. Dunne, O. Ates, Brian M. Davis, C. Ellis, Whitney Armstrong, Y. Li, V. P. Kubarovsky, D. Kawama, Karl Slifer, G. M. Huber, A. Nuruzzaman, L. G. Tang, J. P. Chen, Osamu Hashimoto, A. Deur, N. Kalantarians, O. Geagla, S. Covrig, L. El Fassi, W. Luo, W. U. Boeglin, M. Posik, Wouter Deconinck, V. V. Mochalov, Zein-Eddine Meziani, Nilanga Liyanage, Rolf Ent, L. Y. Zhu, Andrew Puckett, H. Mkrtchyan, Toshiyuki Gogami, A. Liyanage, V. Mamyan, M. E. Christy, P. Bosted, Ho. Kang, Y. Goncharenko, F. Wesselmann, L. Z. Ndukum, Pete Markowitz, O. Rondon, M. Khandaker, Andrey Vasiliev, J. German, D. Flay, A. Ahmidouch, V. Tadevosyan, H. Kang, Sungyeon Choi, James Maxwell, Dipangkar Dutta, K. Kovacs, C. E. Keppel, Emil Frlez, S. A. Wood, M. Veilleux, I. Albayrak, D. J. Mack, M. Bychkov, Jie Zhang, L. F. Soloviev, A. Davidenko, Dinko Pocanic, Yu.M. Mel'nik, J. Roche, A. Asaturyan, D. G. Crabb, Y.H. Kim, Donal Day
المصدر: Physical Review Letters. 122
بيانات النشر: American Physical Society (APS), 2019.
سنة النشر: 2019
مصطلحات موضوعية: Physics, Quark, Proton, FOS: Physical sciences, General Physics and Astronomy, Lattice QCD, Electron, 01 natural sciences, symbols.namesake, 0103 physical sciences, symbols, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Atomic physics, 010306 general physics, Nucleon, Nuclear Experiment, Lorentz force, Electron scattering, Spin-½
الوصف: The Spin Asymmetries of the Nucleon Experiment (SANE) measured two double spin asymmetries using a polarized proton target and polarized electron beam at two beam energies, 4.7 GeV and 5.9 GeV. A large-acceptance open-configuration detector package identified scattered electrons at 40$^{\circ}$ and covered a wide range in Bjorken $x$ ($0.3 < x < 0.8$). Proportional to an average color Lorentz force, the twist-3 matrix element, $\tilde{d}_2^p$, was extracted from the measured asymmetries at $Q^2$ values ranging from 2.0 to 6.0 GeV$^2$. The data display the opposite sign compared to most quark models, including the lattice QCD result, and an apparently unexpected scale dependence. Furthermore when combined with the neutron data in the same $Q^2$ range the results suggest a flavor independent average color Lorentz force.
تدمد: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.122.022002
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71031be2251d093cf62441d4b38c98df
https://doi.org/10.1103/physrevlett.122.022002
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....71031be2251d093cf62441d4b38c98df
قاعدة البيانات: OpenAIRE
الوصف
تدمد:10797114
00319007
DOI:10.1103/physrevlett.122.022002