Quasielastic 3He(e,e'p)2H reaction at Q2 = 1.5 GeV2 for recoil momenta up to 1 GeV/c

M M Rvachev; F Benmokhtar; E Penel-Nottaris; K A Aniol; W Bertozzi; W U Boeglin; F Butaru; J R Calarco; Z Chai; C C Chang; J-P Chen; E Chudakov; E Cisbani; A Cochran; J Cornejo; S Dieterich; P Djawotho; W Duran; M B Epstein; J M Finn; K G Fissum; A Frahi-Amroun; S Frullani; C Furget; F Garibaldi; O Gayou; S Gilad; R Gilman; C Glashausser; J-O Hansen; D W Higinbotham; A Hotta; B Hu; M Iodice; R Iomni; C W de Jager; X Jiang; M K Jones; J J Kelly; S Kox; M Kuss; J M Laget; R De Leo; J J Lerose; E Liatard; R Lindgren; N Liyanage; R W Lourie; S Malov; D J Margaziotis; P Markowitz; F Merchez; R Michaels; J Mitchell; J Mougey; C F Perdrisat; V A Punjabi; G Quéméner; R D Ransome; J-S Réal; R Roché; F Sabatié; A Saha; D Simon; S Strauch; R Suleiman; T Tamae; J A Templon; R Tieulent; H Ueno; P E Ulmer; G M Urciuoli; E Voutier; K Wijesooriya; B Wojtsekhowski; Jefferson Lab Hall A Collaboration

doi:10.1103/PhysRevLett.94.192302

Quasielastic 3He(e,e'p)2H reaction at Q2 = 1.5 GeV2 for recoil momenta up to 1 GeV/c

Phys Rev Lett. 2005 May 20;94(19):192302. doi: 10.1103/PhysRevLett.94.192302. Epub 2005 May 20.

Authors

M M Rvachev¹, F Benmokhtar, E Penel-Nottaris, K A Aniol, W Bertozzi, W U Boeglin, F Butaru, J R Calarco, Z Chai, C C Chang, J-P Chen, E Chudakov, E Cisbani, A Cochran, J Cornejo, S Dieterich, P Djawotho, W Duran, M B Epstein, J M Finn, K G Fissum, A Frahi-Amroun, S Frullani, C Furget, F Garibaldi, O Gayou, S Gilad, R Gilman, C Glashausser, J-O Hansen, D W Higinbotham, A Hotta, B Hu, M Iodice, R Iomni, C W de Jager, X Jiang, M K Jones, J J Kelly, S Kox, M Kuss, J M Laget, R De Leo, J J Lerose, E Liatard, R Lindgren, N Liyanage, R W Lourie, S Malov, D J Margaziotis, P Markowitz, F Merchez, R Michaels, J Mitchell, J Mougey, C F Perdrisat, V A Punjabi, G Quéméner, R D Ransome, J-S Réal, R Roché, F Sabatié, A Saha, D Simon, S Strauch, R Suleiman, T Tamae, J A Templon, R Tieulent, H Ueno, P E Ulmer, G M Urciuoli, E Voutier, K Wijesooriya, B Wojtsekhowski; Jefferson Lab Hall A Collaboration

Affiliation

¹ Massachusetts Institute of Technology, Cambridge, 02139, USA.

PMID: 16090165
DOI: 10.1103/PhysRevLett.94.192302

Abstract

We have studied the quasielastic 3He(e,e(')p)2H reaction in perpendicular coplanar kinematics, with the energy and the momentum transferred by the electron fixed at 840 MeV and 1502 MeV/c, respectively. The 3He(e,e(')p)2H cross section was measured for missing momenta up to 1000 MeV/c, while the A(TL) asymmetry was extracted for missing momenta up to 660 MeV/c. For missing momenta up to 150 MeV/c, the cross section is described by variational calculations using modern 3He wave functions. For missing momenta from 150 to 750 MeV/c, strong final-state interaction effects are observed. Near 1000 MeV/c, the experimental cross section is more than an order of magnitude larger than predicted by available theories. The A(TL) asymmetry displays characteristic features of broken factorization with a structure that is similar to that generated by available models.