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Guo, FK; Meissner, UG; Wang, W; Wang, W (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China.
On the constituent counting rule for hard exclusive processes involving multi-quark states
Source PublicationCHINESE PHYSICS C
Language英语
KeywordHadron Exotics Constituent Scaling Rule Effective Field Theory
AbstractAt high energy, the cross section at finite scattering angle of a hard exclusive process falls off as a power of the Manderstam variable s. If all involved quark-gluon compositions undergo hard momentum transfers, the fall-off scaling is determined by the underlying valence structures of the initial and final hadrons, known as the constituent counting rule. In spite of the complication due to helicity conservation, it has been argued that when applied to exclusive process with exotic multiquark states, the counting rule is a powerful way to determine the valence degrees of freedom inside hadron exotics. In this work, we demonstrate that for hadrons with hidden flavors, the naive application of the constituent counting rule is problematic, since it is not mandatory for all components to participate in hard scattering at the scale We illustrate the problems in the viewpoint based on effective field theory. We clarify the misleading results that may be obtained from the constituent counting rule in exclusive processes with exotic candidates such as Z(c)(+/-)((c) over barc (u) over bard/(c) over barc (d) over baru), Z(b)(+/-)((b) over barb (u) over bard/(b) over barb (d) over baru), X(3872), etc.
2017
Volume41Issue:5Pages:53108
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1088/1674-1137/41/5/053108
Funding OrganizationDFG ; DFG ; DFG ; DFG ; NSFC [CRC 110, 11261130311] ; NSFC [CRC 110, 11261130311] ; NSFC [CRC 110, 11261130311] ; NSFC [CRC 110, 11261130311] ; Thousand Talents Plan for Young Professionals, Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Thousand Talents Plan for Young Professionals, Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Thousand Talents Plan for Young Professionals, Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Thousand Talents Plan for Young Professionals, Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; National Natural Science Foundation of China [11575110, 11655002] ; National Natural Science Foundation of China [11575110, 11655002] ; National Natural Science Foundation of China [11575110, 11655002] ; National Natural Science Foundation of China [11575110, 11655002] ; Natural Science Foundation of Shanghai [15DZ2272100, 15ZR1423100] ; Natural Science Foundation of Shanghai [15DZ2272100, 15ZR1423100] ; Natural Science Foundation of Shanghai [15DZ2272100, 15ZR1423100] ; Natural Science Foundation of Shanghai [15DZ2272100, 15ZR1423100] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22062
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWang, W (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China.
Recommended Citation
GB/T 7714
Guo, FK,Meissner, UG,Wang, W,et al. On the constituent counting rule for hard exclusive processes involving multi-quark states[J]. CHINESE PHYSICS C,2017,41(5):53108.
APA Guo, FK,Meissner, UG,Wang, W,&Wang, W .(2017).On the constituent counting rule for hard exclusive processes involving multi-quark states.CHINESE PHYSICS C,41(5),53108.
MLA Guo, FK,et al."On the constituent counting rule for hard exclusive processes involving multi-quark states".CHINESE PHYSICS C 41.5(2017):53108.
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