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. 2004 Nov 5;93(19):192301.
doi: 10.1103/PhysRevLett.93.192301. Epub 2004 Nov 4.

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

A V Stavinsky  1 , K R Mikhailov, R Lednicky, A V Vlassov, G Adams, P Ambrozewich, E Anciant, M Anghinolfi, B Asavapibhop, G Asryan, G Audit, T Auger, H Avakian, H Bagdasaryan, J P Ball, S Barrow, V Batourine, M Battaglieri, K Beard, M Bektasoglu, M Bellis, N Benmouna, N Bianchi, A S Biselli, S Boiarinov, B E Bonner, S Bouchigny, R Bradford, D Branford, W K Brooks, V D Burkert, C Butuceanu, J R Calarco, D S Carman, C Cetina, S Chen, P L Cole, D Cords, A Coleman, P Corvisiero, D Crabb, J P Cummings, N Dashyan, E De Sanctis, R De Vita, P V Degtyarenko, H Denizli, L Dennis, A Deur, K V Dharmawardane, C Djalali, G E Dodge, D Doughty, P Dragovitsch, M Dugger, S Dytman, O P Dzyubak, H Egiyan, K S Egiyan, L Elouadrhiri, A Empl, P Eugenio, R Fatemi, R G Fersch, R J Feuerbach, T A Forest, H Funsten, M Garçon, G Gavalian, S Gilad, G P Gilfoyle, K L Giovanetti, P Girard, C I O Gordon, R W Gothe, K Griffioen, M Guidal, M Guillo, N Guler, L Guo, V Gyurjyan, C Hadjidakis, R S Hakobyan, J Hardie, D Heddle, F W Hersman, K Hicks, I Hleiqawi, M Holtrop, J Hu, C E Hyde-Wright, D G Ireland, M M Ito, D Jenkins, K Joo, H G Juengst, J H Kelley, J D Kellie, M Khandaker, D H Kim, K Y Kim, K Kim, M S Kim, W Kim, A Klein, F J Klein, A V Klimenko, M Klusman, M V Kossov, L H Kramer, V Kubarovski, S E Kuhn, J Kuhn, J Lachniet, J M Laget, J Langheinrich, D Lawrence, G A Leksin, T Lee, Ji Li, K Livingston, K Lukashin, J J Manak, C Marchand, S McAleer, J W C McNabb, B A Mecking, S Mehrabyan, J J Melone, M D Mestayer, C A Meyer, M Mirazita, R Miskimen, V Mokeev, L Morand, S A Morrow, V Muccifora, J Mueller, G S Mutchler, J Napolitano, R Nasseripour, S O Nelson, S Niccolai, G Niculescu, I Niculescu, B B Niczyporuk, R A Niyazov, M Nozar, G V O'Rielly, M Osipenko, A I Ostrovidov, K Park, E Pasyuk, G Peterson, S A Philips, N A Pivnyuk, D Pocanic, O Pogorelko, E Polli, S Pozdniakov, B M Preedom, J W Price, Y Prok, D Protopopescu, L M Qin, B A Raue, G Riccardi, G Ricco, M Ripani, B G Ritchie, F Ronchetti, G Rosner, P Rossi, D Rowntree, P D Rubin, F Sabatié, K Sabourov, C Salgado, J P Santoro, V Sapunenko, R A Schumacher, V S Serov, Y G Sharabian, J Shaw, S Simionatto, A V Skabelin, E S Smith, L C Smith, D I Sober, M Spraker, S Stepanyan, S S Stepanyan, B E Stokes, P Stoler, I I Strakovsky, M Taiuti, S Taylor, D J Tedeschi, U Thoma, R Thompson, A Tkabladze, L Todor, C Tur, M Ungaro, M F Vineyard, L S Vorobeyev, K Wang, L B Weinstein, H Weller, D P Weygand, C S Whisnant, M Williams, E Wolin, M H Wood, A Yegneswaran, J Yun, L Zana; CLAS Collaboration
Affiliations

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

A V Stavinsky et al. Phys Rev Lett. .

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.

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