Measurement of the differential cross section for the reaction gamman-->pi- p from deuterium.

Autoria(s): Chen, W; Mibe, T; Dutta, D; Gao, H; Laget, JM; Mirazita, M; Rossi, P; Stepanyan, S; Strakovsky, II; Amaryan, MJ; Anghinolfi, M; Bagdasaryan, H; Battaglieri, M; Bellis, M; Berman, BL; Biselli, AS; Bookwalter, C; Branford, D; Briscoe, WJ; Brooks, WK; Burkert, VD; Careccia, SL; Carman, DS; Casey, L; Cole, PL; Collins, P; Crede, V; Daniel, A; Dashyan, N; De Vita, R; De Sanctis, E; Deur, A; Dhamija, S; Dickson, R; Djalali, C; Dodge, GE; Doughty, D; Egiyan, H; Eugenio, P; Fedotov, G; Fradi, A; Garçon, M; Gilfoyle, GP; Giovanetti, KL; Girod, FX; Gohn, W; Gothe, RW; Griffioen, KA; Guidal, M; Hakobyan, H; Hanretty, C; Hassall, N; Heddle, D; Hicks, K; Holtrop, M; Hyde, CE; Ilieva, Y; Ireland, DG; Ishkhanov, BS; Isupov, EL; Jo, HS; Johnstone, JR; Joo, K; Keller, D; Khandaker, M; Khetarpal, P; Kim, W; Klein, A; Klein, FJ; Kramer, LH; Kubarovsky, V; Kuhn, SE; Kuleshov, SV; Kuznetsov, V; Livingston, K; Lu, HY; Markov, N; McCracken, ME; McKinnon, B; Meyer, CA; Mineeva, T; Mokeev, V; Moreno, B; Moriya, K; Nadel-Turonski, P; Nasseripour, R; Niccolai, S; Niculescu, I; Niroula, MR; Osipenko, M; Ostrovidov, AI; Park, K; Park, S; Pereira, SA; Pogorelko, O; Pozdniakov, S; Price, JW; Procureur, S; Protopopescu, D; Raue, BA; Ricco, G; Ripani, M; Ritchie, BG; Rosner, G; Sabatié, F; Saini, MS; Salamanca, J; Salgado, C; Schumacher, RA; Sharabian, YG; Sober, DI; Sokhan, D; Stepanyan, SS; Strauch, S; Taiuti, M; Tedeschi, DJ; Tkachenko, S; Ungaro, M; Vineyard, MF; Watts, DP; Weinstein, LB; Weygand, DP; Wood, MH; Yegneswaran, A; Zhang, J; Zhao, B; CLAS Collaboration
Contribuinte(s)

Gao, Haiyan
Data(s)

03/07/2009
Resumo

We report a measurement of the differential cross section for the gamman-->pi- p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (thetac.m.) between 50 degrees and 115 degrees. We confirm a previous indication of a broad enhancement around a c.m. energy ([sqrt]s) of 2.1 GeV at thetac.m.=90 degrees in the scaled differential cross section s7dsigma/dt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for thetac.m. from 70 degrees to 105 degrees.

Dissertation
Formato

012301 - ?

application/pdf
Identificador

http://www.ncbi.nlm.nih.gov/pubmed/19659138

Phys Rev Lett, 2009, 103 (1), pp. 012301 - ?

0031-9007

http://hdl.handle.net/10161/2401

http://hdl.handle.net/10161/2401
Idioma(s)

ENG

en_US
Relação

Phys Rev Lett

10.1103/PhysRevLett.103.012301
Tipo

Journal Article
Cobertura

United States
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