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

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

Physical review letters（2005）

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摘要

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.

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