Survey Of Alt ' Asymmetries In Semi-Exclusive Electron Scattering On He-4 And C-12

D Protopopescu, Fw Hersman, M Holtrop,G Adams, P Ambrozewicz, E Anciant, M Anghinolfi, B Asavapibhop,G Asryan, G Audit,T Auger, H Avakian,H Bagdasaryan,Jp Ball,S Barrow, M Battaglieri,K Beard, M Bektasoglu,M Bellis,N Benmouna,Bl Berman, W Bertozzi,N Bianchi, As Biselli,S Boiarinov, Be Bonner,S Bouchigny,R Bradford, D Branford,Wj Briscoe, Wk Brooks,Vd Burkert,C Butuceanu, Jr Calarco, Ds Carman, B Carnahan, C Cetina, S Chen,Pl Cole,A Coleman, D Cords, P Corvisiero,D Crabb, H Crannell, Jp Curmnings, D Debruyne,E De Sanctis, R Devita, Pv Degtyarenko,L Dennis,Kv Dharmawardane, Ks Dhuga, C Djalali, Ge Dodge, D Doughty, P Dragovitsch,M Dugger,S Dytman,Op Dzyubak, H Egiyan,Ks Egiyan, L Elouadrhiri, A Empl,P Eugenio, R Fatemi, Rj Feuerbach,Ta Forest, H Funsten, G Gavalian,S Gilad,Gp Gilfoyle, Kl Giovanetti, P Girard,Cio Gordon, Rw Gothe, Ka Griffioen, M Guidal,M Guillo,N Guler, L Guo, V Gyurjyan, C Hadjidakis, Rs Hakobyan, J Hardie, D Heddle,K Hicks,I Hleiqawi,J Hu, Ce Hyde-Wright,W Ingram,D Ireland, Mm Ito,D Jenkins,K Joo,Hg Juengst,Jh Kelley, Jd Kellie, M Khandaker,Ky Kim,K Kim,W Kim,A Klein, Fj Klein, Av Klimenko, M Klusman, M Kossov, Lh Kramer,Se Kuhn,J Kuhn,J Lachniet,Jm Laget, J Langheinrich,D Lawrence,T Lee, J Li, K Livingston, K Lukashin, Jj Manak,C Marchand,S Mcaleer, St Mclauchlan,Jwc Mcnabb, Ba Mecking, Jj Melone, Md Mestayer, Cd Meyer, K Mikhailov, R Minehart, M Mirazita, R Miskimen, L Morand,Sa Morrow, V Muccifora,J Mueller,Gs Mutchler,J Napolitano,R Nasseripour, So Nelson, S Niccolai, G Niculescu, I Niculescu, Bb Niczyporuk, Ra Niyazov, M Nozar,Gv O'Rielly,M Osipenko, A Ostrovidov,K Park, E Pasyuk,G Peterson, Sa Philips, N Pivnyuk, D Pocanic, O Pogorelko, E Polli,S Pozdniakov, Bm Preedom, Jw Price,Y Prok, Lm Qin, Ba Raue,G Riccardi,G Ricco, M Ripani,Bg Ritchie, F Ronchetti, G Rosner,P Rossi, D Rowntree, Pd Rubin, J Ryckebusch,F Sabatie, K Sabourov, C Salgado, Jp Santoro, V Sapunenko,Ra Schumacher, Vs Serov, Yg Sharabian,J Shaw, S Simionatto, Av Skabelin,Es Smith,Lc Smith, Di Sober, M Spraker,A Stavinsky,S Stepanyan, Be Stokes, P Stoler,S Strauch, M Taiuti,S Taylor, Dj Tedeschi,U Thoma, R Thompson,A Tkabladze, L Todor,C Tur,M Ungaro, Mf Vineyard, Av Vlassov,K Wang, Lb Weinstein,H Weller,Dp Weygand,Cs Whisnant, M Williams, E Wolin, Mh Wood, A Yegneswaran,J Yun,L Zana, B Zhang

NUCLEAR PHYSICS A（2005）

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摘要

Single spin azimuthal asymmetries A(LT') were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarised electrons incident on He-4 and C-12 targets in the CLAS detector. ALT' is related to the imaginary part of the longitudinal-transverse interference and in quasifree nucleon knockout it provides an unambiguous signature for final state interactions (FSI). Experimental values of ALT' were found to be below 5 %, typically \A(LT')\ less than or equal to 3 % for data with good statistical precision. Optical model in eikonal approximation (OMEA) and relativistic multiple-scattering Glauber approximation (RMSGA) calculations are shown to be consistent with the measured asymmetries. (C) 2004 Elsevier B.V. All rights reserved.

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关键词

NUCLEAR REACTIONS He-4, C-12 (polarised e,e ' p), E=2.261, 4.461 GeV, measured single spin azimuthal asymmetries vs missing momentum, missing energy, deduced final state interaction effects, comparisons with model predictions

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