Exclusive electroproduction of pions and vector mesons at HERMES

被引：0
|
作者：
Rostomyan, A [1 ]
机构：
[1] DESY, HERMES, D-2000 Hamburg, Germany
来源：
SPIN 2004: 16TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM | 2005年
关键词：
D O I：
10.1142/9789812701909_0083
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Hard exclusive meson production in deep inelastic lepton scattering provides access to the unknown Generalized Parton Distributions (GPDs) in the nucleon. GPDs parameterize the nucleon structure and provide a unified description of exclusive/inclusive reactions. This paper reports on the measurement of hard exclusive pi(+) and light vector meson production on an internal hydrogen gas target at HERMES using the 27.6 GeV HERA positron beam. First preliminary results for the total exclusive pi(+) production cross section are presented and compared with GPD calculations. Spin density matrix elements have been determined for exclusive rho(0) and phi productions, and the longitudinal component of the total cross section has also been compared to GPD calculations.
引用
收藏
页码：434 / 437
页数：4
相关论文
共 50 条
  • [31] Deeply virtual and exclusive electroproduction of ω-mesons
    Morand, L
    Doré, D
    Garçon, M
    Guidal, M
    Laget, JM
    Morrow, S
    Sabatié, F
    Smith, E
    Adams, G
    Arnbrozewicz, P
    Anghinolfi, M
    Asryan, G
    Audit, G
    Avakian, H
    Bagdasaryan, H
    Ball, J
    Ball, JP
    Baltzell, NA
    Barrow, S
    Batourine, V
    Battaglieri, M
    Bektasoglu, M
    Bellis, M
    Benmouna, N
    Berman, BL
    Biselli, AS
    Boiarinov, S
    Bonner, BE
    Bouchigny, S
    Bradford, R
    Branford, D
    Briscoe, WJ
    Brooks, WK
    Bültmann, S
    Burkert, VD
    Butuceanu, C
    Calarco, JR
    Careccia, SL
    Carman, DS
    Cazes, A
    Chen, S
    Cole, PL
    Cords, D
    Corvisiero, P
    Crabb, D
    Cummings, JP
    De Sanctis, E
    DeVita, R
    Degtyarenko, PV
    Denizli, H
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2005, 24 (03): : 445 - 458
  • [32] EXCLUSIVE ELECTROPRODUCTION IN A MASSIVE QUARK-MODEL - PRODUCTION OF VECTOR-MESONS
    PREPARATA, G
    [J]. PHYSICS LETTERS B, 1974, B 49 (04) : 374 - 376
  • [33] Hard exclusive electroproduction of two pions and their resonances
    Polyakov, MV
    [J]. NUCLEAR PHYSICS B, 1999, 555 (1-2) : 231 - 258
  • [34] EXCLUSIVE PHOTOPRODUCTION AND ELECTROPRODUCTION OF VECTOR-MESONS AT LARGE MOMENTUM-TRANSFER
    LAGET, JM
    MENDEZGALAIN, R
    [J]. NUCLEAR PHYSICS A, 1995, 581 (3-4) : 397 - 428
  • [35] UNIVERSALITY IN THE ELECTROPRODUCTION OF VECTOR MESONS
    Baltar, V. L.
    Dosch, H. G.
    Ferreira, E.
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2011, 26 (13): : 2125 - 2141
  • [36] Coherent contributions of nuclear mesons to electroproduction and the HERMES effect
    Miller, GA
    Brodsky, SJ
    Karliner, M
    [J]. PHYSICS LETTERS B, 2000, 481 (2-4) : 245 - 252
  • [37] Diffractive electroproduction of vector mesons
    Kananov, S
    [J]. DIS 98, 6TH INTERNATIONAL WORKSHOP ON DEEP INELASTIC SCATTERING AND QCD, 1998, : 308 - 311
  • [38] Transversity in hard exclusive electroproduction of pseudoscalar mesons
    S. V. Goloskokov
    P. Kroll
    [J]. The European Physical Journal A, 2011, 47
  • [39] Transversity in hard exclusive electroproduction of pseudoscalar mesons
    Goloskokov, S. V.
    Kroll, P.
    [J]. EUROPEAN PHYSICAL JOURNAL A, 2011, 47 (09): : 112
  • [40] Exclusive photo- and electroproduction of excited light vector mesons via holographic model
    Henkels, Cheryl
    de Oliveira, Emmanuel G.
    Pasechnik, Roman
    Trebien, Haimon
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (06):
12345