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Polarization transfer in the 4He(e over-right-arrow,e 'p over-right-arrow)3H reaction up to Q2=2.6 (GeV/c)2 (2003) |
- 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.K.,
- 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.,
- Vignote, J.R.,
- Watts, D.P.,
- Weinstein, L.B.,
- Wijesooriya, K.,
- Wojtsekhowski, B.
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Abstract |
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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. |
Publication details |
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