Gluon gravitational form factors at large momentum transfer

doi:10.1016/j.physletb.2021.136751

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Gluon gravitational form factors at large momentum transfer
	Tong, Xuan-Bo ; Ma, Jian-Ping ; Yuan, Feng 2
刊名	PHYSICS LETTERS B
	2021
卷号	823 页码:136751
关键词	GENERALIZED PARTON DISTRIBUTIONS CONE WAVE-FUNCTION ASYMPTOTIC-BEHAVIOR SPIN STRUCTURE DISTRIBUTION AMPLITUDES EXCLUSIVE PROCESSES HADRON STRUCTURE QUARK PHOTOPRODUCTION NUCLEON
ISSN号	0370-2693
DOI	10.1016/j.physletb.2021.136751
英文摘要	We perform a perturbative QCD analysis of the gluonic gravitational form factors (GFFs) of the proton and pion at large momentum transfer. We derive the explicit factorization formula of the GFFs in terms of the distribution amplitudes of hadrons. At the leading power, we find that the gluon GFFs A(g) and C-g scale as A(g)(pi) (t) = C-g(pi) (t) similar to 1/(-t) for pion, A(g)(p)(t) similar to 1/(-t)(2) and C-g(p)(t) similar to ln(2)(-t/Delta(2))/(-t)(3) for proton, respectively, where t is the momentum transfer and Delta a non-perturbative scale to regulate the endpoint singularity in C-g(p) calculation. Our results provide a unique perspective of the momentum dependence of the GFFs and will help to improve our understanding of the internal pressure distributions of hadrons. (C) 2021 The Author(s). Published by Elsevier B.V.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27617]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 2.[Tong, Xuan-Bo 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Tong, Xuan-Bo,Ma, Jian-Ping,Yuan, Feng. Gluon gravitational form factors at large momentum transfer[J]. PHYSICS LETTERS B,2021,823:136751.
APA	Tong, Xuan-Bo,Ma, Jian-Ping,&Yuan, Feng.(2021).Gluon gravitational form factors at large momentum transfer.PHYSICS LETTERS B,823,136751.
MLA	Tong, Xuan-Bo,et al."Gluon gravitational form factors at large momentum transfer".PHYSICS LETTERS B 823(2021):136751.