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

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...

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Veröffentlicht in:	Physical review letters 2004-11, Vol.93 (19), p.192301-192301
Hauptverfasser:	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, Djalali, C, Dodge, G E, Doughty, D, Dragovitsch, P, Dugger, M, Dytman, S, Dzyubak, O P, Egiyan, H, Egiyan, K S, Elouadrhiri, L, Empl, A, Eugenio, P, Fatemi, R, Fersch, R G, Feuerbach, R J, Forest, T A, Funsten, H, Garçon, M, Gavalian, G, Gilad, S, Gilfoyle, G P, Giovanetti, K L, Girard, P, Gordon, C I O, Gothe, R W, Griffioen, K, Guidal, M, Guillo, M, Guler, N, Guo, L, Gyurjyan, V, Hadjidakis, C, Hakobyan, R S, Hardie, J, Heddle, D, Hersman, F W, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Hyde-Wright, C E, Ireland, D G, Ito, M M, Jenkins, D, Joo, K, Juengst, H G, Kelley, J H, Kellie, J D, Khandaker, M, Kim, D H
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Sprache:	eng
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Zusammenfassung:	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.
ISSN:	0031-9007