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题名: Generalized counting rule for hard exclusive processes
作者: Ji, XD ;  Ma, JP ;  Yuan, F
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2003
卷号: 90, 期号:24, 页码:-
关键词: LARGE-TRANSVERSE-MOMENTUM ;  CONSTITUENT-QUARK-MODEL ;  ELASTIC-SCATTERING ;  DISTRIBUTION AMPLITUDES ;  FORM-FACTORS ;  QCD ;  NUCLEON ;  BEHAVIOR ;  ANGLE ;  SPIN
学科分类: Physics
通讯作者: Ji, XD , Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
部门归属: Univ Maryland, Dept Phys, College Pk, MD 20742 USA; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We derive a generalized counting rule for hard exclusive processes involving parton orbital angular momentum and hadron helicity flip. We start with a systematic way to enumerate the Fock components of a hadronic light-cone wave function with n partons and orbital angular momentum projection l(z). We show that the wave-function amplitude psi(n)(x(i),k(iperpendicular to),l(zi)) has a leading behavior 1/(k(perpendicular to)(2))([n+parallel tol)(z)parallel to+min(n(')+parallel tol(z)(')parallel to)]/2-1 when all parton transverse momenta are uniformly large, where n(') and l(z)(') are the number of partons and orbital angular momentum projection, respectively, of an amplitude that mixes under renormalization. Besides the generalized counting rule, the result can be used as a constraint in modeling the hadronic light-cone wave functions.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000183642800006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13273
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ji, XD,Ma, JP,Yuan, F. Generalized counting rule for hard exclusive processes[J]. PHYSICAL REVIEW LETTERS,2003,90(24):-.
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