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Ma, JP; Si, ZG; Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions
Source PublicationPHYSICAL REVIEW D
KeywordTwist Distribution Amplitudes Exclusive Processes Quantum Chromodynamics Vector-mesons Asymptotic-behavior Qcd Factorization Form-factors B-meson Annihilation Decays
AbstractPredictions for e(+)e(-)-->J/psieta(c) from previous studies are made by taking charmonia as a nonrelativistic bound state and by using nonrelativistic QCD (NRQCD) approach. The predicted cross section is smaller by an order of magnitude than the experimentally observed cross section. We study the process by taking charm quark as a light quark and use light-cone wave functions to parameterize nonperturbative effects related to charmonia. The total cross section of e(+)e(-)-->J/psieta(c) can be predicted, if these wave functions are known. Motivated by studies of light-cone wave functions of light hadrons, we make a reasonable assumption of the forms of light-cone wave functions. With these light-cone wave functions we can obtain the cross section which is closer to the experimentally observed than that from the NRQCD approach. We also discuss in detail the difference between two approaches.
2004
ISSN0556-2821
Volume70Issue:7Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13994
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMa, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Ma, JP,Si, ZG,Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions[J]. PHYSICAL REVIEW D,2004,70(7):-.
APA Ma, JP,Si, ZG,&Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2004).Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions.PHYSICAL REVIEW D,70(7),-.
MLA Ma, JP,et al."Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions".PHYSICAL REVIEW D 70.7(2004):-.
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