| Title: |
Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2 |
| Authors: |
Paolone, M.; Malace, S. P.; Strauch, S.; Albayrak, I.; Arrington, J.; Berman, B. L.; Brash, E. J.; Briscoe, B.; Camsonne, A.; Chen, J. -P.; Christy, M. E.; Chudakov, E.; Cisbani, E.; Craver, B.; Cusanno, F.; Ent, R.; Garibaldi, F.; Gilman, R.; Glamazdin, O.; Glister, J.; Higinbotham, D. W.; Hyde-Wright, C. E.; Ilieva, Y.; de Jager, C. W.; Jiang, X.; Jones, M. K.; Keppel, C. E.; Khrosinkova, E.; Kuchina, E.; Kumbartzki, G.; Lee, B.; Lindgren, R.; Margaziotis, D. J.; Meekins, D.; Michaels, R.; Park, K.; Pentchev, L.; Perdrisat, C. F.; Piasetzky, E.; Punjabi, V. A.; Puckett, A. J. R.; Qian, X.; Qiang, Y.; Ransome, R. D.; Saha, A.; Sarty, A. J.; Schulte, E.; Solvignon, P.; Subudi, R. R.; Tang, L.; Tedeschi, D.; Tvaskis, V.; Udias, J. M.; Ulmer, P. E.; Vignote, J. R.; Wesselmann, F. R.; Wojteskhowski, B.; Zhan, X. |
| Source: |
Phys.Rev.Lett.105:072001,2010 |
| Publication Year: |
2010 |
| Collection: |
Nuclear Experiment |
| Subject Terms: |
Nuclear Experiment |
| Description: |
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. |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.105.072001 |
| Access URL: |
http://arxiv.org/abs/1002.2188 |
| Accession Number: |
edsarx.1002.2188 |
| Database: |
arXiv |