Pion valence quark distributions from maximum entropy method

doi:10.1016/j.physletb.2019.135066

	Pion valence quark distributions from maximum entropy method
	Han, Chengdong 1,2; Xing, Hanyang 1,3; Wang, Xiaopeng 1,2; Fu, Qiang 1,2,4; Wang, Rong 1,5; Chen, Xurong 1
刊名	PHYSICS LETTERS B
	2020-01-10
卷号	800 页码:5
关键词	Pion Valence quark distributions Maximum entropy method
ISSN号	0370-2693
DOI	10.1016/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.
资助项目	National Basic Research Program of China (973 Program)[2014CB845406]
WOS关键词	LEADING NEUTRON-PRODUCTION ; PARTON DISTRIBUTIONS ; PSEUDOSCALAR MESONS ; GLUON RECOMBINATION ; DRELL-YAN ; SCATTERING ; NUCLEON ; MODEL ; KAON
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000503832500043
资助机构	National Basic Research Program of China (973 Program)
内容类型	期刊论文
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.