The longitudinal cross section of vector meson electroproduction

被引：115

作者：

Goloskokov, S. V. ^{[1
]}

Kroll, P.

机构：

[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Moscow Region, Russia

[2] Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2007年 / 50卷 / 04期

关键词：

D O I：

10.1140/epjc/s10052-007-0228-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We analyze electroproduction of light vector mesons (V = rho,phi and omega) at small Bjorken-x in the handbag approach, in which the process factorizes into general parton distributions and partonic subprocesses. The latter are calculated in the modified perturbative approach in which the transverse momenta of the quark and antiquark forming the vector meson are retained and Sudakov suppression is taken into account. Modeling the generalized parton distributions through double distributions and using simple Gaussian wavefunctions for the vector mesons, we compute the longitudinal cross sections at large photon virtualities. The results are in fair agreement with the findings of recent experiments performed at HERA and HERMES.

引用

页码：829 / 842

页数：14

共 59 条

[1] Intermittency regions at high energies [J].

Golyak, I ;

Andre, T .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 74 (02) :275-278

[2]

Adloff C, 2000, EUR PHYS J C, V13, P371, DOI 10.1007/s100520000150

[3] Measurement of elastic electroproduction of φ mesons at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Arkadov, V ;

Astvatsatourov, A ;

Ayyaz, I ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Bassler, U ;

Bate, P ;

Beglarian, A ;

Behnke, O ;

Beier, C ;

Belousov, A ;

Benisch, T ;

Berger, C ;

Bernardi, G ;

Berndt, T ;

Bizot, JC ;

Borras, K ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Brückner, W ;

Bruel, P ;

Bruncko, D ;

Bürger, J ;

Büsser, FW ;

Bunyatyan, A ;

Burkhardt, H ;

Burrage, A ;

Buschhorn, G ;

Campbell, AJ ;

Cao, J ;

Carli, T ;

Caron, S ;

Chabert, E ;

Clarke, D ;

Clerbaux, B ;

Collard, C ;

Contreras, JG ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G .

PHYSICS LETTERS B, 2000, 483 (04) :360-372

[4] Measurement and QCD analysis of neutral and charged current cross sections at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Astvatsatourov, A ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Baumgartner, S ;

Becker, J ;

Beckingham, M ;

Beglarian, A ;

Behnke, O ;

Belousov, A ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Böhme, J ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Bruncko, D ;

Büsser, FW ;

Bunyatyan, A ;

Burrage, A ;

Buschhorn, G ;

Bystritskaya, L ;

Campbell, AJ ;

Cao, J ;

Caron, S ;

Cassol-Brunner, F ;

Chekelian, V ;

Clarke, D ;

Collard, C ;

Contreras, JG ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB ;

Dau, WD ;

Daum, K ;

Davidsson, M ;

Delcourt, B .

EUROPEAN PHYSICAL JOURNAL C, 2003, 30 (01) :1-32

[5] Elastic electroproduction of rho and J/psi mesons at large Q(2) at HERA [J].

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arpagaus, M ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Beck, HP ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Bernet, R ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biddulph, P ;

Bispham, P ;

Bizot, JC ;

Blobel, V ;

Borras, K ;

Botterweck, F ;

Boudry, V ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Bruncko, D ;

Brune, C ;

Buchholz, R ;

Bungener, L ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Burton, MJ ;

Buschhorn, G ;

Campbell, AJ ;

Carli, T ;

Charles, F ;

Charlet, M ;

Clarke, D ;

Clegg, AB .

NUCLEAR PHYSICS B, 1996, 468 (1-2) :3-33

[6]

Airapetian A, 2000, EUR PHYS J C, V17, P389, DOI 10.1007/s100520000483

[7] Parton distribution functions from the precise NNLO QCD fit [J].

Alekhin, SI .

JETP LETTERS, 2005, 82 (10) :628-631

[8]

ARBARBANEL HDI, 1969, PHYS REV LETT, V22, P500

[9] rho meson light-cone distribution amplitudes of leading twist reexamined [J].

Ball, P ;

Braun, VM .

PHYSICAL REVIEW D, 1996, 54 (03) :2182-2193

[10] Theory of deeply virtual Compton scattering on the nucleon [J].

Belitsky, AV ;

Muller, D ;

Kirchner, A .

NUCLEAR PHYSICS B, 2002, 629 (1-3) :323-392

← 1 2 3 4 5 6 →