Calculation of Nuclear Deeply Virtual Compton Scattering in HERMES Experiment

被引：0
作者：
Ye Hong-Xue [1 ]
Mao Ya-Jun
Wang Si-Guang
Sun Bo
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2009年 / 26卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Compton scattering - Uncertainty analysis;
D O I：
10.1088/0256-307X/26/1/011301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the possibility to acquire information of nuclear generalized parton distribution (GPD) H by studying the deeply virtual Compton scattering (DVCS) off several nuclear targets at the HERMES group (Hadron-Electron Ring Accelerator Measurement of Spin). Two different models are used and developed to demonstrate the leading asymmetry amplitude A(LU)(sin) (phi) for coherent-enriched and incoherent-enriched parts with both statistical and systematic uncertainties estimated. It is found that a clear enhancement of ratio of nuclear asymmetry A(LU)(A,sin) (phi) to free proton asymmetry A(LU)(H,sin) (phi) in the coherent-enriched region is expected by both models, and a decrease of the ratio in incoherent-enriched region; both give the information about nuclear modifications. It is also possible to distinguish between those two models even under the limited statistics.
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  • [1] The HERMES spectrometer
    Ackerstaff, K
    Airapetian, A
    Akopov, N
    Amarian, M
    Andreev, V
    Aschenauer, EC
    Avakian, R
    Avakian, H
    Avetissian, A
    Bains, B
    Barrow, S
    Beckhusen, W
    Beckmann, M
    Belostotski, S
    Belz, E
    Benisch, T
    Bernreuther, S
    Bianchi, N
    Blouw, J
    Bottcher, H
    Borissov, A
    Brack, J
    Braun, B
    Bray, B
    Brons, S
    Bruckner, W
    Brull, A
    Bulten, HJ
    Capitani, GP
    Carter, P
    Chumney, P
    Cisbani, E
    Clark, S
    Colilli, S
    Coombes, H
    Court, GR
    Delheij, P
    Devitsin, E
    de Jager, CW
    De Sanctis, E
    De Schepper, D
    Huberts, PKAD
    Di Nezza, P
    Doets, M
    Duren, M
    Dvoredsky, A
    Elbakian, G
    Emerson, J
    Fantoni, A
    Fechtchenko, A
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 417 (2-3) : 230 - 265
  • [2] Measurement of deeply virtual Compton scattering at HERA
    Adloff, C
    Andreev, V
    Andrieu, B
    Anthonis, T
    Arkadov, V
    Astvatsatourov, A
    Babaev, A
    Bähr, J
    Baranov, P
    Barrelet, E
    Bartel, W
    Bate, P
    Beglarian, A
    Behnke, O
    Beier, C
    Belousov, A
    Benisch, T
    Berger, C
    Berndt, T
    Bizot, JC
    Boudry, V
    Braunschweig, W
    Brisson, V
    Bröker, HB
    Brown, DP
    Brückner, W
    Bruncko, D
    Bürger, J
    Büsser, FW
    Bunyatyan, A
    Burrage, A
    Buschhorn, G
    Bystritskaya, L
    Campbell, AJ
    Cao, J
    Caron, S
    Clarke, D
    Clerbaux, B
    Collard, C
    Contreras, JG
    Coppens, YR
    Coughlan, JA
    Cousinou, MC
    Cox, BE
    Cozzika, G
    Cvach, J
    Dainton, JB
    Dau, WD
    Daum, K
    Davidsson, M
    [J]. PHYSICS LETTERS B, 2001, 517 (1-2) : 47 - 58
  • [3] Beam-charge azimuthal asymmetry and deeply virtual Compton scattering
    Airapetian, A.
    Akopov, N.
    Akopov, Z.
    Amarian, M.
    Andrus, A.
    Aschenauer, E. C.
    Augustyniak, W.
    Avakian, R.
    Avetissian, A.
    Avetissian, E.
    Bailey, P.
    Balin, D.
    Beckmann, M.
    Belostotski, S.
    Bianchi, N.
    Blok, H. P.
    Boettcher, H.
    Borissov, A.
    Borysenko, A.
    Bouwhuis, M.
    Bruell, A.
    Bryzgalov, V.
    Capiluppi, M.
    Capitani, G. P.
    Chen, T.
    Ciullo, G.
    Contalbrigo, M.
    Dalpiaz, P. F.
    Deconinck, W.
    De Leo, R.
    Demey, M.
    De Nardo, L.
    De Sanctis, E.
    Devitsin, E.
    Di Nezza, P.
    Dreschler, J.
    Dueren, M.
    Ehrenfried, M.
    Elalaoui-Moulay, A.
    Elbakian, G.
    Ellinghaus, F.
    Elschenbroich, U.
    Fabbri, R.
    Fantoni, A.
    Felawka, L.
    Frullani, S.
    Funel, A.
    Gapienko, G.
    Gapienko, V.
    Garibaldi, F.
    [J]. PHYSICAL REVIEW D, 2007, 75 (01):
  • [4] Measurement of azimuthal asymmetries with respect to both beam charge and transverse target polarization in exclusive electroproduction of real photons
    Airapetian, A.
    Akopov, N.
    Akopov, Z.
    Andrus, A.
    Aschenauer, E. C.
    Augustyniak, W.
    Avakian, R.
    Avetissian, A.
    Avetisyan, E.
    Barion, L.
    Belostotski, S.
    Bianchi, N.
    Blok, H. P.
    Boettcher, H.
    Bonomo, C.
    Borissov, A.
    Bruell, A.
    Bryzgalov, V.
    Burns, J.
    Capiluppi, M.
    Capitani, G. P.
    Cisbani, E.
    Ciullo, G.
    Contalbrigo, M.
    Dalpiaz, P. F.
    Deconinck, W.
    De Leo, R.
    Demey, M.
    De Nardo, L.
    De Sanctis, E.
    Diefenthaler, M.
    Di Nezza, P.
    Dreschler, J.
    Dueren, M.
    Ehrenfried, M.
    Elbakian, G.
    Ellinghaus, F.
    Elschenbroich, U.
    Fabbri, R.
    Fantoni, A.
    Felawka, L.
    Frullani, S.
    Funel, A.
    Gabbert, D.
    Gapienko, G.
    Gapienko, V.
    Garibaldi, F.
    Gavrilov, G.
    Gharibyan, V.
    Giordano, F.
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2008, (06):
  • [5] Measurement of the beam-spin azimuthal asymmetry associated with deeply-virtual Compton scattering -: art. no. 182001
    Airapetian, A
    Akopov, N
    Akopov, Z
    Amarian, M
    Achenauer, EC
    Avakian, H
    Avakian, R
    Avetissian, A
    Avetissian, E
    Bailey, P
    Bains, B
    Baturin, V
    Baumgarten, C
    Beckmann, M
    Belostotski, S
    Bernreuther, S
    Bianchi, N
    Böttcher, H
    Borissov, A
    Bouhali, O
    Bouwhuis, M
    Brack, J
    Brauksiepe, S
    Brückner, W
    Brüll, A
    Brunn, I
    Bulten, HJ
    Capitani, GP
    Chumney, P
    Cisbani, E
    Ciullo, G
    Court, GR
    Dalpiaz, PF
    De Leo, R
    De Nardo, L
    De Sanctis, E
    De Schepper, D
    Devitsin, E
    Huberts, PKAD
    Di Nezza, P
    Düren, M
    Ehrenfried, M
    Elbakian, G
    Ellinghaus, F
    Ely, J
    Fabbri, R
    Fantoni, A
    Fechtchenko, A
    Felawka, L
    Filippone, BW
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (18) : 182001 - 182001
  • [6] Single-spin asymmetries: The Trento conventions
    Bacchetta, A
    D'Alesio, U
    Diehl, M
    Miller, CA
    [J]. PHYSICAL REVIEW D, 2004, 70 (11) : 117504 - 1
  • [7] Belitsky AV, 2002, NUCL PHYS A, V711, p118C, DOI 10.1016/S0375-9474(02)01202-2
  • [8] Twist-three analysis of photon electroproduction off the pion -: art. no. 116002
    Belitsky, AV
    Müller, D
    Kirchner, A
    Schäfer, A
    [J]. PHYSICAL REVIEW D, 2001, 64 (11):
  • [9] Theory of deeply virtual Compton scattering on the nucleon
    Belitsky, AV
    Muller, D
    Kirchner, A
    [J]. NUCLEAR PHYSICS B, 2002, 629 (1-3) : 323 - 392
  • [10] CARISON J, 2003, PHYS LETT, V553, P191
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