Measurements of the elastic electromagnetic form factor ratio μ p G Ep / G Mp </mml:…
2001; American Institute of Physics; Volume: 64; Issue: 3 Linguagem: Inglês
10.1103/physrevc.64.038202
ISSN1538-4497
AutoresO. Gayou, K. Wijesooriya, Andrei Afanasev, M. Amarian, K. Aniol, Saïda Ben Becher, K. Benslama, L. Bimbot, P. Bosted, E. J. Brash, J. R. Calarco, Z. Chai, C. C. Chang, Tung‐Zong Chang, J.-P. Chen, Seonho Choi, E. Chudakov, S. Churchwell, D. Crovelli, Sonja Dieterich, S. Dumalski, D. Dutta, M. Epstein, K. Fissum, B. Fox, S. Frullani, H. Gao, J. Gao, F. Garibaldi, R. Gilman, A. Glamazdin, C. Glashausser, J. Gómez, V. Gorbenko, O. Hansen, R. J. Holt, Jordan Hovdebo, G. M. Huber, C. W. de Jager, X. Jiang, Catherine Jones, M. Jones, James J. Kelly, E. Kinney, Edgar E. Kooijman, G. Kumbartzki, M. Kuss, J. J. LeRose, M. Liang, R. Lindgren, N. Liyanage, S. Malov, D. J. Margaziotis, P. Markowitz, K. McCormick, D. Meekins, Z.-E. Meziani, R. Michaels, Jason W. Mitchell, L. Morand, C. F. Perdrisat, R. Pomatsalyuk, V. Punjabi, R. D. Ransome, R. Roché, M. Rvachev, A. Saha, A. Sarty, Eva C. Schulte, Daniel T. Simon, S. Strauch, R. Suleiman, L. Todor, P. E. Ulmer, G. M. Urciuoli, B. Wojtsekhowski, F. Xiong, Wei-Jiang Xü,
Tópico(s)Particle Accelerators and Free-Electron Lasers
ResumoWe present measurements of the ratio of the proton elastic electromagnetic form factors, μpGEp/GMp. The Jefferson Lab Hall A Focal Plane Polarimeter was used to determine the longitudinal and transverse components of the recoil proton polarization in ep elastic scattering; the ratio of these polarization components is proportional to the ratio of the two form factors. These data reproduce the observation of Jones et al. [Phys. Rev. Lett. 84, 1398 (2000)], that the form factor ratio decreases significantly from unity above Q2=1GeV2.Received 29 May 2001DOI:https://doi.org/10.1103/PhysRevC.64.038202©2001 American Physical Society
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