Separated spectral functions for the quasifree12C(e,e′p)reaction

D Dutta,A Ahmidouch,T Eden,D Koltenuk,J P Schiffer,I Niculescu,T P Welch,R E Segel,R Sawafta,B Zihlmann,S Beedoe,C Bochna,E E W Bruins,D Deschepper,D F Geesaman,E Belz,G Niculescu,H E Jackson,P Stoler,W Kim,H T Fortune,B Zeidman,S Barrow,W J Cummings,H Breuer,W Hinton,R E Chrien,J Cha,S Danagoulian,J Reinhold,V Tadevosyan,H Mkrtchyan,B Terburg,R J Holt,R Mohring,K Beard,D Beatty,J Mitchell,A M Nathan,S A Wood ,D H Potterveld ,J W Martin ,T G O’Neill,Derek Van Westrum ,D Meekins,F Duncan,D Day,Md Al-Amin Khandaker ,J O Hansen,Reto Sutter ,O K Baker,Chenyu Yan ,P Guèye,K Assamagan ,R Madey,P Markowitz,E J Beise ,R Gilman,C Jackson,N S Chant ,K Mcfarlane,W Lorenzon,R Carlini,Jen Yü ,C Keppel,R Ent,Jae Choon Yang ,J W Price,A Klein,Eric Meier ,D Mack ,C E Jones ,V V Frolov ,C F Williamson ,J J Kelly,J.e Ducret ,M A Miller,C Salgado,R Suleiman,J Dunne,Christopher Armstrong ,Ts.a Amatuni ,C D Cothran ,L Tang,L Kramer,Zhao Wenheng ,H Gao,E Kinney,J Arrington,K Bailey,A Mateos,S.b Kaufman ,D Abbott,P Bosted ,R Milner

doi:10.1103/physrevc.61.061602

Abstract

A separation of the longitudinal and transverse 12 C(e, e8p) cross sections in the quasifree region has been performed in parallel kinematics at Q 2 of 0.64 and 1.8 GeV 2 for initial proton momentum ,80 MeV. The separated transverse and longitudinal spectral functions at Q 2 50.64 GeV 2 show significant differences for missing energy between 25 and 60 MeV indicating a breakdown in the single nucleon knockout picture. The transverse spectral functions exhibit definite momentum transfer dependence.

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