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Proton source size measurements in the eA-->e'ppX reaction.

Stavinsky, A V; Mikhailov, K R; Lednicky, R; Vlassov, A V; Adams, G; Ambrozewich, P; Anciant, E; Anghinolfi, M; Asavapibhop, B; Asryan, G; Audit, G; Auger, T; Avakian, H; Bagdasaryan, H; Ball, J P; Barrow, S; Batourine, V; Battaglieri, M; Beard, K; Bektasoglu, M; Bellis, M; Benmouna, N; Bianchi, N; Biselli, A S; Boiarinov, S; Bonner, B E; Bouchigny, S; Bradford, R; Branford, D; Brooks, W K; Burkert, V D; Butuceanu, C; Calarco, J R; Carman, D S; Cetina, C; Chen, S; Cole, P L; Cords, D; Coleman, A; Corvisiero, P; Crabb, D; Cummings, J P; Dashyan, N; Sanctis, E De; Vita, R De; Degtyarenko, P V; Denizli, H; Dennis, L; Deur, A; Dharmawardane, K V.

Phys Rev Lett ; 93(19): 192301, 2004 Nov 05.

Article in English | MEDLINE | ID: mdl-15600827

ABSTRACT

Two-proton correlations at small relative momentum q were studied in the eA(3He,4He,C,Fe)-->e(')ppX reaction at E(0)=4.46 GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation function at small q was found to be in accordance with theoretical expectations. Sizes of the emission region were extracted, and proved to be dependent on A and on the proton momentum. The size of the two-proton emission region for He was measured in eA reactions for the first time.

ABSTRACT

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