Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2
Nuclear Experiment
2010-08-24 v8
Abstract
Proton recoil polarization was measured in the quasielastic 4He(e,e'p)3H reaction at Q^2 = 0.8 (GeV/c)^2 and 1.3 (GeV/c)^2 with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e,e' p) reaction, contradicting a relativistic distorted-wave approximation, and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton.
Keywords
Cite
@article{arxiv.1002.2188,
title = {Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2},
author = {M. Paolone and S. P. Malace and S. Strauch and I. Albayrak and J. Arrington and B. L. Berman and E. J. Brash and B. Briscoe and A. Camsonne and J. -P. Chen and M. E. Christy and E. Chudakov and E. Cisbani and B. Craver and F. Cusanno and R. Ent and F. Garibaldi and R. Gilman and O. Glamazdin and J. Glister and D. W. Higinbotham and C. E. Hyde-Wright and Y. Ilieva and C. W. de Jager and X. Jiang and M. K. Jones and C. E. Keppel and E. Khrosinkova and E. Kuchina and G. Kumbartzki and B. Lee and R. Lindgren and D. J. Margaziotis and D. Meekins and R. Michaels and K. Park and L. Pentchev and C. F. Perdrisat and E. Piasetzky and V. A. Punjabi and A. J. R. Puckett and X. Qian and Y. Qiang and R. D. Ransome and A. Saha and A. J. Sarty and E. Schulte and P. Solvignon and R. R. Subudi and L. Tang and D. Tedeschi and V. Tvaskis and J. M. Udias and P. E. Ulmer and J. R. Vignote and F. R. Wesselmann and B. Wojteskhowski and X. Zhan},
journal= {arXiv preprint arXiv:1002.2188},
year = {2010}
}