Statistical effect in the parton distribution functions of the nucleon

被引：41
作者：
Zhang, Yunhua
Shao, Lijing
Ma, Bo-Qiang [1 ]
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
来源：
PHYSICS LETTERS B | 2009年 / 671卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Statistical model; Parton distribution functions; Nucleon structure; Light-front formalism; THERMODYNAMICAL BAG MODEL; STRANGE-ANTISTRANGE SEA; LIGHT-QUARK SEA; FLAVOR ASYMMETRY; PROTON; TEMPERATURE; SCATTERING;
D O I：
10.1016/j.physletb.2008.11.033
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new and simple statistical approach is performed to calculate the parton distribution functions (PDFs) of the nucleon in terms of light-front kinematic variables. We do not put in any extra arbitrary parameter or corrected term by hand, which guarantees the stringency of our approach. Analytic expressions of the x-dependent PDFs are obtained in the whole x region [0, 1], and some features, especially the low-x rise, are more agreeable with experimental data than those in some previous instant-form statistical models in the infinite-momentum frame (IMF). Discussions on heavy-flavored PDFs are also presented. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：30 / 35
页数：6
相关论文
共 48 条
  • [1] Flavor asymmetry of the light quark sea from semi-inclusive deep-inelastic scattering
    Ackerstaff, K
    Airapetian, A
    Akopov, N
    Akushevich, I
    Amarian, M
    Ashenauer, EC
    Avakian, H
    Avakian, R
    Avetissian, A
    Bains, B
    Baumgarten, C
    Beckmann, M
    Belostotski, S
    Belz, JE
    Benisch, T
    Bernreuther, S
    Bianchi, N
    Blouw, J
    Böttcher, H
    Borissov, A
    Brack, J
    Brauksiepe, S
    Braun, B
    Bray, B
    Brons, S
    Brückner, W
    Brüll, A
    Bruins, EEW
    Bulten, KJ
    Cadman, RV
    Capitani, GP
    Carter, P
    Chumney, P
    Cisbani, E
    Court, GR
    Dalpiaz, PF
    De Sanctis, E
    De Schepper, D
    Devitsin, E
    Huberts, PKAD
    Di Nezza, P
    Düren, M
    Dvoredsky, A
    Elbakian, G
    Fantoni, A
    Fechtchenko, A
    Ferstl, M
    Fiedler, K
    Filippone, BW
    Fischer, H
    [J]. PHYSICAL REVIEW LETTERS, 1998, 81 (25) : 5519 - 5523
  • [2] Parton distributions in the proton and pion
    Alberg, M
    Henley, EA
    [J]. PHYSICS LETTERS B, 2005, 611 (1-2) : 111 - 115
  • [3] Light-front field theories at finite temperature
    Alves, VS
    Das, A
    Perez, S
    [J]. PHYSICAL REVIEW D, 2002, 66 (12):
  • [4] GOTTFRIED SUM FROM THE RATIO F2(N)/F2(P)
    AMAUDRUZ, P
    ARNEODO, M
    ARVIDSON, A
    BADELEK, B
    BAUM, G
    BEAUFAYS, J
    BIRD, IG
    BOTJE, M
    BROGGINI, C
    BRUCKNER, W
    BRULL, A
    BURGER, WJ
    CIBOROWSKI, J
    CRITTENDEN, R
    VANDANTZIG, R
    DOBBELING, H
    DOMINGO, J
    DRINKARD, J
    DZIERBA, A
    ENGELIEN, H
    FERRERO, MI
    FLURI, L
    GRAFSTROM, P
    VONHARRACH, D
    VANDERHEIJDEN, M
    HEUSCH, C
    INGRAM, Q
    JACHOLKOWSKA, A
    JANSON, K
    DEJONG, M
    KABUSS, EM
    KAISER, R
    KETEL, TJ
    KLEIN, F
    KORZEN, B
    KRUNER, U
    KULLANDER, S
    LANDGRAF, U
    LETTENSTROM, T
    LINDQVIST, T
    MALLOT, GK
    MARIOTTI, C
    VANMIDDELKOOP, G
    MIZUNO, Y
    NASSALSKI, J
    NOWOTNY, D
    PAVEL, N
    PESCHEL, H
    PERONI, C
    POVH, B
    [J]. PHYSICAL REVIEW LETTERS, 1991, 66 (21) : 2712 - 2715
  • [5] [Anonymous], P 3 TOP C HIGH EN CO
  • [6] REEVALUATION OF THE GOTTFRIED SUM
    ARNEODO, M
    ARVIDSON, A
    BADELEK, B
    BALLINTIJN, M
    BAUM, G
    BEAUFAYS, J
    BIRD, IG
    BJORKHOLM, P
    BOTJE, M
    BROGGINI, C
    BRUCKNER, W
    BRULL, A
    BURGER, WJ
    CIBOROWSKI, J
    VANDANTZIG, R
    DYRING, A
    ENGELIEN, H
    FERRERO, MI
    FLURI, L
    GAUL, U
    GRANIER, T
    VONHARRACH, D
    VANDERHEIJDEN, M
    HEUSCH, C
    INGRAM, Q
    JANSONPRYTZ, K
    DEJONG, M
    KABUSS, EM
    KAISER, R
    KETEL, TJ
    KLEIN, F
    KULLANDER, S
    LANDGRAF, U
    LINDQVIST, T
    MALLOT, GK
    MARIOTTI, C
    VANMIDDELKOOP, G
    MILSZTAJN, A
    MIZUNO, Y
    NASSALSKI, J
    OBERSKI, J
    NOWOTNY, D
    PAIC, A
    PERONI, C
    POVH, B
    RIEGER, R
    RITH, K
    ROHRICH, K
    RONDIO, E
    ROPELEWSKI
    [J]. PHYSICAL REVIEW D, 1994, 50 (01): : R1 - R3
  • [7] STUDY OF THE ISOSPIN SYMMETRY-BREAKING IN THE LIGHT-QUARK SEA OF THE NUCLEON FROM THE DRELL-YAN PROCESS
    BALDIT, A
    BARRIERE, C
    CASTOR, J
    CHAMBON, T
    DEVAUX, A
    ESPAGNON, B
    FARGEIX, J
    FORCE, P
    LANDAUD, G
    SATURNINI, P
    VAZEILLE, F
    SONDEREGGER, P
    ABREU, MC
    BORDALO, P
    FERREIRA, R
    LOURENCO, C
    RAMOS, S
    SILVA, S
    VARELA, J
    GERSCHEL, C
    JOUAN, D
    TARRAGO, X
    CHAURAND, B
    KLUBERG, L
    ROMANA, A
    GORODETZKY, P
    LAZIC, D
    MAZINI, R
    RACCA, C
    ALESSANDRO, B
    CHIAVASSA, E
    DELLACASA, G
    GALLIO, M
    GIUBELLINO, P
    GUAITA, P
    MARZARICHIESA, A
    MASERA, M
    MONTENO, M
    MUSSO, A
    RAMELLO, L
    RICCATI, L
    SCOMPARIN, E
    VERCELLIN, E
    BEDJIDIAN, M
    CONTARDO, D
    DESCROIX, E
    DRAPIER, O
    GROSSIORD, JY
    GUICHARD, A
    HAROUTUNIAN, R
    [J]. PHYSICS LETTERS B, 1994, 332 (1-2) : 244 - 250
  • [8] BEYER M, HEPPH0310222
  • [9] Statistical model for the nucleon structure functions
    Bhalerao, RS
    [J]. PHYSICS LETTERS B, 1996, 380 (1-2) : 1 - 6
  • [10] Model for polarized and unpolarized parton density functions in the nucleon
    Bhalerao, RS
    Kelkar, NG
    Ram, B
    [J]. PHYSICS LETTERS B, 2000, 476 (3-4) : 285 - 290
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