中国科学院机构知识库网格系统: Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2))

Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2))

文献类型：期刊论文


作者	Kaptari, L. P.1,2; Kotikov, A. V.1,2; Chernikova, N. Yu.3; Zhang, Pengming1,4
刊名	PHYSICAL REVIEW D
出版日期	2019-05-21
卷号	99 页码:096019
ISSN号	2470-0010
DOI	10.1103/PhysRevD.99.096019
英文摘要	We present a method to extract, in the leading- and next-to-leading-order approximations, the longitudinal deep inelastic scattering structure function F-L(x, Q(2)) from the experimental data by relying on a Froissart-bounded parametrization of the transversal structure function F-L(x, Q(2)) and, partially, on the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equations. Particular attention is paid to the kinematics of low and ultralow values of the Bjorken variable x, x similar to 10(-5)-10(-2). Analytical expressions for F-L(x, Q(2)) in terms of the effective parameters of the parametrization of F-L(x, Q(2)) are presented explicitly. We argue that the obtained structure functions F-L(x, Q(2)) within both, the leading- and next-to-leading-order approximations, manifestly obey the Froissart boundary conditions. Numerical calculations and comparison with available data from the ZEUS and H1 collaborations at HERA demonstrate that the suggested method provides reliable structure functions F-L(x, Q(2)) at low x in a wide range of the momentum transfer (1 GeV2 < Q(2) < 3000 GeV2) and can be applied as well in analyses of ultrahigh-energy processes with cosmic neutrinos.
WOS关键词	DYNAMICAL PARTON DISTRIBUTIONS ; DEEP-INELASTIC SCATTERING ; HEAVY-QUARK PRODUCTION ; ALPHA-S-CORRECTION ; OFF-SHELL GLUONS ; BLOCK-TAN FORM ; SMALL VALUES ; COMBINED H1 ; Q (2)-EVOLUTION ; QCD EVOLUTION
资助项目	National Natural Science Foundation of China[11575254] ; National Key Research and Development Program of China[2016YFE0130800] ; CAS President's International Fellowship Initiative[2018VMA0029] ; CAS President's International Fellowship Initiative[2017VMA0040]
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000469020500005
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; CAS President's International Fellowship Initiative
源URL	[http://119.78.100.186/handle/113462/87643]
专题	中国科学院近代物理研究所
作者单位	1.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Gansu, Peoples R China 2.Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia 3.Sunday Sch, Dubna 141980, Russia 4.Univ Chinese Acad Sci, Yuquanlu 19A, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Kaptari, L. P.,Kotikov, A. V.,Chernikova, N. Yu.,et al. Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2))[J]. PHYSICAL REVIEW D,2019,99:096019.
APA	Kaptari, L. P.,Kotikov, A. V.,Chernikova, N. Yu.,&Zhang, Pengming.(2019).Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2)).PHYSICAL REVIEW D,99,096019.
MLA	Kaptari, L. P.,et al."Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2))".PHYSICAL REVIEW D 99(2019):096019.

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Extracting the longitudinal structure function F-L(x,Q(2)) at small x from a Froissart- bounded parametrization of F-2(x,Q(2))

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