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Gluon number fluctuations with heavy quarks at HERA
  • ISSN号：1674-1137
  • 期刊名称：《中国物理C：英文版》
  • 时间：0
  • 分类：O572.2[理学—粒子物理与原子核物理;理学—物理] X835[环境科学与工程—环境工程]
  • 作者机构：[1]Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China, [2]Key Laboratory of Quark & Lepton Physics, Huazhong Normal University, Ministry of Education, Wuhan 430079, China
  • 相关基金：Supported by NSFC （10875051, 11020101060）, Programme of Science and Technology Department of Hubei Province （2009BFA010） and CCNU09C01002 （Key Grant）
作者： 朱祥荣[1,2], 周代翠[1,2]
关键词： 数量波动, 夸克胶子, HERA, 试验数据, 质子结构函数, 结构功能, 饱和模型, 重夸克, deep inelastic scattering, gluon number fluctuations, proton structure function
中文摘要：

We study the effect of gluon number fluctuations (Pomeron loops) on the proton structure function at HERA.It is shown that the description of charm and bottom quarks and longitudinal structure functions are improved,with χ2 /d.o.f =0.803 (f luctuations) as compared with χ2 /d.o.f =0.908 (without f luctuations),once the gluon number fluctuations are included.We find that in the gluon number fluctuation case the heavy quarks do not play an important role in the proton structure function as the saturation model.The successful description of the HERA data indicates that the gluon number fluctuation could be one of the key mechanisms to describe the proton structure function at HERA energies.

英文摘要：

We study the effect of gluon number fluctuations （Pomeron loops） on the proton structure function at HERA. It is shown that the description of charm and bottom quarks and longitudinal structure functions are improved, with x^2/d.o.f=0.803 （fluctuations） as compared with x^2/d.o.f=0.908 （without fluctuations）, once the gluon number fluctuations are included. We find that in the gluon number fluctuation case the heavy quarks do not play an important role in the proton structure function as the saturation model. The successful description of the HERA data indicates that the gluon number fluctuation could be one of the key mechanisms to describe the proton structure function at HERA energies.

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期刊信息
  • 《中国物理C：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编：王贻芳
  • 地址：北京市玉泉路19号（乙）
  • 邮编：100049
  • 邮箱：cpc@mail.ihep.ac.cn
  • 电话：010-88235947
  • 国际标准刊号：ISSN：1674-1137
  • 国内统一刊号：ISSN：11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国剑桥科学文摘,美国科学引文索引（扩展库）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,英国英国皇家化学学会文摘
  • 被引量:189