Polarization transfer in the 4He(e over-right-arrow,e 'p over-right-arrow)3H reaction up to Q2=2.6 (GeV/c)2

Strauch, S. et al. (2003) Polarization transfer in the 4He(e over-right-arrow,e 'p over-right-arrow)3H reaction up to Q2=2.6 (GeV/c)2. Physical Review Letters, 91(5), art 052301. (doi:10.1103/PhysRevLett.91.052301)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.91.052301

Abstract

We have measured the proton recoil polarization in the He-4((e) over right arrow ,e(')(p) over right arrow)H-4 reaction at Q(2)=0.5, 1.0, 1.6, and 2.6 (GeV/c)(2). The measured ratio of polarization transfer coefficients differs from a fully relativistic calculation, favoring the inclusion of a medium modification of the proton form factors predicted by a quark- meson coupling model. In addition, the measured induced polarizations agree reasonably well with the fully relativistic calculation indicating that the treatment of final-state interactions is under control.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ireland, Professor David and Annand, Dr John and Kellie, Dr James and Rosner, Professor Guenther
Authors: Strauch, S., Dieterich, S., Aniol, K.A., Annand, J.R.M., Baker, O.K., Bertozzi, W., Boswell, M., Brash, E.J., Chai, Z., Chen, J.P., Christy, M.E., Chudakov, E., Cochran, A., De Leo, R., Ent, R., Epstein, M.B., Finn, J.M., Fissum, K.G., Forest, T.A., Frullani, S., Garibaldi, F., Gasparian, A., Gayou, O., Gilad, S., Gilman, R., Glashausser, C., Gomez, J., Gorbenko, V., Gueye, P.L.J., Hansen, J.O., Higinbotham, D.W., Hu, B.,, Hyde-Wright, C.E., Ireland, D.G., Jackson, C., de Jager, C.W., Jiang, X., Jones, C., Jones, M., Kellie, J.D., Kelly, J.J., Keppel, C.E., Kumbartzki, G., Kuss, M., Lerose, J.J., Livingston, K., Liyanage, N., Malov, S., Margaziotis, D.J., Meekins, D., Michaels, R., Mitchell, J.H., Nanda, S.K., Nappa, J., Perdrisat, C.F., Punjabi, V.A., Ransome, R.D., Roche, R., Rosner, G., Rvachev, M., Sabatie, F., Saha, A., Sarty, A., Udias, J.M., Ulmer, P.E., Urciuoli, G.M., van den Brand, J.F.J., Vignote, J.R., Watts, D.P., Weinstein, L.B., Wijesooriya, K., and Wojtsekhowski, B.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114

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