Two-nucleon momentum distributions measured in 3He(e,e'pp)n

We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs...

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Published inPhysical review letters Vol. 92; no. 5; p. 052303
Main Authors Niyazov, R A, Weinstein, L B, Adams, G, Ambrozewicz, P, Anciant, E, Anghinolfi, M, Asavapibhop, B, Asryan, G, Audit, G, Auger, T, Avakian, H, Bagdasaryan, H, Ball, J P, Barrow, S, Battaglieri, M, Beard, K, Bektasoglu, M, Bellis, M, Benmouna, N, Berman, B L, Bertozzi, W, 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, Carnahan, B, Cetina, C, Chen, S, Ciciani, L, Cole, P L, Coleman, A, Cords, D, Corvisiero, P, Crabb, D, Crannell, H, Cummings, J P, De Sanctis, E, Dashyan, N, DeVita, R, Degtyarenko, P V, Denizli, H, Dennis, L, Dharmawardane, K V, Dhuga, K S, Djalali, C, Dodge, G E, Doughty, D, Dragovitsch, P, Dugger, M, Dytman, S, Dzyubak, O P, Eckhause, M, Egiyan, H, Egiyan, K S, Elouadrhiri, L, Empl, A, Eugenio, P, Fatemi, R, Feuerbach, R J, Ficenec, J, Forest, T A, Funsten, H, 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, Guo, L, Gyurjyan, V, Hadjidakis, C, Hakobyan, R S, Hardie, J, Heddle, D, Hersman, F W, Hicks, K, Holtrop, M, Hu, J, Hyde-Wright, C E, Ilieva, Y, Ingram, W, Ito, M M, Jenkins, D, Joo, K, Juengst, H G, Kelley, J H, Kellie, J, Khandaker, M
Format Journal Article
LanguageEnglish
Published United States 06.02.2004
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Summary:We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs are back to back with little momentum along the three-momentum transfer, indicating that they are spectators. Calculations by Sargsian and by Laget also indicate that we have measured distorted two-nucleon momentum distributions by striking one nucleon and detecting the spectator correlated pair.
ISSN:0031-9007