Nuclear effects on J/ψ production in proton-nucleus collisions

被引：9

作者：

Duan, Chun-Gui ^{[1
,2
]}

Xu, Jian-Chao ^{[1
]}

Song, Li-Hua ^{[1
,3
]}

机构：

[1] Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Peoples R China

[2] Hebei Adv Thin Films Lab, Shijiazhuang 050016, Peoples R China

[3] Hebei Polytech Univ, Coll Informat, Tangshan 063009, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2010年 / 67卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

PARTON DISTRIBUTION-FUNCTIONS; ENERGY-LOSS; QUARKONIUM PRODUCTION; CHARMONIUM PRODUCTION; DISTRIBUTIONS; PSI; DEPENDENCE; RATIO;

D O I：

10.1140/epjc/s10052-010-1270-1

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：

The study of nuclear effects for J/psi production in proton-nucleus collisions is crucial for a correct interpretation of the J/psi suppression patterns experimentally observed in heavy-ion collisions. By means of three representative sets of nuclear parton distribution, the energy loss effect in the initial state and the nuclear absorption effect in the final state are taken into account in the uniform framework of the Glauber model. A leading order phenomenological analysis is performed on J/psi production cross-section ratios R-W/Be(x(F)) for the E866 experimental data. The J/psi suppression is investigated quantitatively due to the different nuclear effects. It is shown that the energy loss effect with resulting in the suppression on R-W/Be(x(F)) is more important than the nuclear effects on parton distributions in high x(F) region. The E866 data in the small x(F) keep out the nuclear gluon distribution with a large anti-shadowing effect. However, the new HERA-B measurement is not in support of the anti-shadowing effect in the nuclear gluon distribution. It is found that the J/psi-nucleon inelastic cross section sigma(J/psi)(abs) depends on the kinematical variable x(F), and increases as x(F) in the region x(F) > 0.2.

引用

页码：173 / 179

页数：7

共 37 条

[1] A Measurement of the ψ′ to J/ψ production ratio in 920 GeV proton-nucleus interactions [J].

Abt, I. ;

Adams, M. ;

Agari, M. ;

Albrecht, H. ;

Aleksandrov, A. ;

Amaral, V. ;

Amorim, A. ;

Aplin, S. J. ;

Aushev, V. ;

Bagaturia, Y. ;

Balagura, V. ;

Bargiotti, M. ;

Barsukova, O. ;

Bastos, J. ;

Batista, J. ;

Bauer, C. ;

Bauer, T. S. ;

Belkov, A. ;

Belotelov, I. ;

Bertin, A. ;

Bobchenko, B. ;

Boecker, M. ;

Bogatyrev, A. ;

Bohm, G. ;

Braeuer, M. ;

Bruinsma, M. ;

Bruschi, M. ;

Buchholz, P. ;

Buran, T. ;

Carvalho, J. ;

Conde, P. ;

Cruse, C. ;

Dam, M. ;

Danielsen, K. M. ;

Danilov, M. ;

De Castro, S. ;

Deppe, H. ;

Dong, X. ;

Dreis, H. B. ;

Egorytchev, V. ;

Ehret, K. ;

Eisele, F. ;

Emeliyanov, D. ;

Essenov, S. ;

Fabbri, L. ;

Faccioli, P. ;

Feuerstack-Raible, M. ;

Flammer, J. ;

Fominykh, B. .

EUROPEAN PHYSICAL JOURNAL C, 2007, 49 (02) :545-558

[2] Kinematic distributions and nuclear effects of J/ψ production in 920 GeV fixed-target proton-nucleus collisions [J].

Abt, I. ;

Adams, M. ;

Agari, M. ;

Albrecht, H. ;

Aleksandrov, A. ;

Amaral, V. ;

Amorim, A. ;

Aplin, S. J. ;

Aushev, V. ;

Bagaturia, Y. ;

Balagura, V. ;

Bargiotti, M. ;

Barsukova, O. ;

Bastos, J. ;

Batista, J. ;

Bauer, C. ;

Bauer, Th. S. ;

Belkov, A. ;

Belkov, Ar. ;

Belotelov, I. ;

Bertin, A. ;

Bobchenko, B. ;

Boecker, M. ;

Bogatyrev, A. ;

Bohm, G. ;

Braeuer, M. ;

Bruinsma, M. ;

Bruschi, M. ;

Buchholz, P. ;

Buran, T. ;

Carvalho, J. ;

Conde, P. ;

Cruse, C. ;

Dam, M. ;

Danielsen, K. M. ;

Danilov, M. ;

De Castro, S. ;

Deppe, H. ;

Dong, X. ;

Dreis, H. B. ;

Egorytchev, V. ;

Ehret, K. ;

Eisele, F. ;

Emeliyanov, D. ;

Essenov, S. ;

Fabbri, L. ;

Faccioli, P. ;

Feuerstack-Raible, M. ;

Flammer, J. ;

Fominykh, B. .

EUROPEAN PHYSICAL JOURNAL C, 2009, 60 (04) :525-542

[3] Angular distributions of leptons from J/ψ's produced in 920 GeV fixed-target proton-nucleus collisions [J].

Abt, I. ;

Adams, M. ;

Agari, M. ;

Albrecht, H. ;

Aleksandrov, A. ;

Amaral, V. ;

Amorim, A. ;

Aplin, S. J. ;

Aushev, V. ;

Bagaturia, Y. ;

Balagura, V. ;

Bargiotti, M. ;

Barsukova, O. ;

Bastos, J. ;

Batista, J. ;

Bauer, C. ;

Bauer, Th. S. ;

Belkov, A. ;

Belkov, Ar. ;

Belotelov, I. ;

Bertin, A. ;

Bobchenko, B. ;

Boecker, M. ;

Bogatyrev, A. ;

Bohm, G. ;

Braeuer, M. ;

Bruinsma, M. ;

Bruschi, M. ;

Buchholz, P. ;

Buran, T. ;

Carvalho, J. ;

Conde, P. ;

Cruse, C. ;

Dam, M. ;

Danielsen, K. M. ;

Danilov, M. ;

De Castro, S. ;

Deppe, H. ;

Dong, X. ;

Dreis, H. B. ;

Egorytchev, V. ;

Ehret, K. ;

Eisele, F. ;

Emeliyanov, D. ;

Essenov, S. ;

Fabbri, L. ;

Faccioli, P. ;

Feuerstack-Raible, M. ;

Flammer, J. ;

Fominykh, B. .

EUROPEAN PHYSICAL JOURNAL C, 2009, 60 (04) :517-524

[4] A DEPENDENCE OF J/PSI AND PSI' PRODUCTION AT 800 GEV/C [J].

ALDE, DM ;

BAER, HW ;

CAREY, TA ;

GARVEY, GT ;

KLEIN, A ;

LEE, C ;

LEITCH, MJ ;

LILLBERG, J ;

MCGAUGHEY, PL ;

MISHRA, CS ;

MOSS, JM ;

PENG, JC ;

BROWN, CN ;

COOPER, WE ;

HSIUNG, YB ;

ADAMS, MR ;

GUO, R ;

KAPLAN, DM ;

MCCARTHY, RL ;

DANNER, G ;

WANG, M ;

BARLETT, M ;

HOFFMANN, G .

PHYSICAL REVIEW LETTERS, 1991, 66 (02) :133-136

[5] Charmonium production and nuclear absorption in p-A interactions at 450 GeV [J].

Alessandro, B ;

Alexa, C ;

Arnaldi, R ;

Atayan, M ;

Baglin, C ;

Baldit, A ;

Beolè, S ;

Boldea, V ;

Bordalo, P ;

Borenstein, SR ;

Borges, G ;

Bussière, A ;

Capelli, L ;

Castanier, C ;

Castor, J ;

Chaurand, B ;

Cheynis, B ;

Chiavassa, E ;

Cicalò, C ;

Claudino, T ;

Comets, MP ;

Constans, N ;

Constantinescu, S ;

Cortese, P ;

Cruz, J ;

De Falco, A ;

De Marco, N ;

Dellacasa, G ;

Devaux, A ;

Dita, S ;

Drapier, O ;

Espagnon, B ;

Fargeix, J ;

Force, P ;

Gallio, M ;

Gerschel, C ;

Giubellino, P ;

Golubeva, MB ;

Gonin, M ;

Grigorian, AA ;

Grigorian, S ;

Grossiord, JY ;

Guber, FF ;

Guichard, A ;

Gulkanyan, H ;

Idzik, M ;

Jouan, D ;

Karavitcheva, TL ;

Kluberg, L ;

Kurepin, AB .

EUROPEAN PHYSICAL JOURNAL C, 2004, 33 (01) :31-40

[6]

[Anonymous], 1983, Z PHYS C PART FIELDS, V20, P101, DOI 10.1007/BF01573213

[7] Constraints on nuclear gluon densities from J/ψ data [J].

Arleo, Francois .

PHYSICS LETTERS B, 2008, 666 (01) :31-33

[8]

ASAKAWA M, 200011 KEK

[9] THE RATIO OF THE NUCLEON STRUCTURE FUNCTIONS F2N FOR IRON AND DEUTERIUM [J].

AUBERT, JJ ;

BASSOMPIERRE, G ;

BECKS, KH ;

BEST, C ;

BOHM, E ;

DEBOUARD, X ;

BRASSE, FW ;

BROLL, C ;

BROWN, S ;

CARR, J ;

CLIFFT, RW ;

COBB, JH ;

COIGNET, G ;

COMBLEY, F ;

COURT, GR ;

DAGOSTINI, G ;

DAU, WD ;

DAVIES, JK ;

DECLAIS, Y ;

DOBINSON, RW ;

DOSSELLI, U ;

DREES, J ;

EDWARDS, AW ;

EDWARDS, M ;

FAVIER, J ;

FERRERO, MI ;

FLAUGER, W ;

GABATHULER, E ;

GAMET, R ;

GAYLER, J ;

GERHARDT, V ;

GOSSLING, C ;

HAAS, J ;

HAMACHER, K ;

HAYMAN, P ;

HENCKES, M ;

KORBEL, V ;

LANDGRAF, U ;

LEENEN, M ;

MAIRE, M ;

MINSSIEUX, H ;

MOHR, W ;

MONTGOMERY, HE ;

MOSER, K ;

MOUNT, RP ;

NORTON, PR ;

MCNICHOLAS, J ;

OSBORNE, AM ;

PAYRE, P ;

PERONI, C .

PHYSICS LETTERS B, 1983, 123 (3-4) :275-278

[10] QUANTUM-CHROMODYNAMIC ESTIMATES FOR HEAVY-PARTICLE PRODUCTION [J].

BABCOCK, J ;

SIVERS, D ;

WOLFRAM, S .

PHYSICAL REVIEW D, 1978, 18 (01) :162-181

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