中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 近代物理研究所
  3. 中国科学院近代物理研究所
Pion valence quark distributions from maximum entropy method

文献类型：期刊论文

作者Han, Chengdong1,2; Xing, Hanyang1,3; Wang, Xiaopeng1,2; Fu, Qiang1,2,4; Wang, Rong1,5; Chen, Xurong1
刊名PHYSICS LETTERS B
出版日期2020-01-10
卷号800页码:5
关键词Pion Valence quark distributions Maximum entropy method
ISSN号0370-2693
DOI10.1016/j.physletb.2019.135066
通讯作者Wang, Rong(rwang@impcas.ac.cn) ; Chen, Xurong(xchen@impcas.ac.cn)
英文摘要Valence quark distributions of pion at very low resolution scale Q(0)(2) similar to 0.1 GeV2 are deduced from a maximum entropy method, under the assumption that pion consists of only a valence quark and a valence anti-quark at such a low scale. Taking the obtained initial quark distributions as the nonperturbative input in the modified Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (with the GLR-MQ-ZRS corrections) evolution, the generated valence quark distribution functions at high Q(2) are consistent with the measured ones from a Drell-Yan experiment. The maximum entropy method is also applied to estimate the valence quark distributions at relatively higher Q(2) = 0.26 GeV2. At this higher scale, other components (sea quarks and gluons) should be considered in order to match the experimental data. The first three moments of pion quark distributions at high Q(2) are calculated and compared with the other theoretical predictions. (C) 2019 The Authors. Published by Elsevier B.V.
WOS关键词LEADING NEUTRON-PRODUCTION ; PARTON DISTRIBUTIONS ; PSEUDOSCALAR MESONS ; GLUON RECOMBINATION ; DRELL-YAN ; SCATTERING ; NUCLEON ; MODEL ; KAON
资助项目National Basic Research Program of China (973 Program)[2014CB845406]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000503832500043
出版者ELSEVIER
资助机构National Basic Research Program of China (973 Program)
源URL[http://119.78.100.186/handle/113462/141354]  
专题中国科学院近代物理研究所
通讯作者Wang, Rong; Chen, Xurong
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
4.Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China
5.Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, CNRS,IN2P3, F-91406 Orsay, France
推荐引用方式
GB/T 7714		 Han, Chengdong,Xing, Hanyang,Wang, Xiaopeng,et al. Pion valence quark distributions from maximum entropy method[J]. PHYSICS LETTERS B,2020,800:5.
APA Han, Chengdong,Xing, Hanyang,Wang, Xiaopeng,Fu, Qiang,Wang, Rong,&Chen, Xurong.(2020).Pion valence quark distributions from maximum entropy method.PHYSICS LETTERS B,800,5.
MLA Han, Chengdong,et al."Pion valence quark distributions from maximum entropy method".PHYSICS LETTERS B 800(2020):5.

入库方式： OAI收割

来源：近代物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。