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Chang, CH; Chen, SL; Feng, TF; Li, XQ; Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
Lifetime of the B-c meson and some relevant problems
Source PublicationPHYSICAL REVIEW D
KeywordSemileptonic Branching Ratio Inclusive Weak Decays Qcd Sum-rules Phenomenological Analysis p(p)Over-bar Collisions Root-s=1.8 Tev Beauty Spectroscopy Model Order
AbstractThe lifetime of the B-c meson is estimated by means of consistent considerations of all of the heavy mesons (B-0,B+/-,B-s,D-0,D',D-s) and the double heavy meson B-c itself as well. The framework, where the nonspectator effects for inclusive decays in terms of the optical theorem are taken into account properly, is adopted, and the parameters appearing in the estimate are treated phenomenologically by global fitting all the existing data for all the heavy mesons. In this estimation, special attention is paid to the masses of the heavy flavors and the bound-state effects as well. The present approach to the problem is meaningful because the numerical results show that the lifetime of the meson B-c can reach to the center value of the experimental observation. Because of the interference between the terms of the QCD correction from penguin diagrams and the main ones c(1)O(1), c(2)O(2), the total width of the meson B-c is enhanced by a factor about 3-4% that is different from the other heavy mesons and can be tested experimentally in the future.
2001
ISSN0556-2821
Volume64Issue:1Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12713
Collection理论物理所科研产出_SCI论文
Corresponding AuthorChang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Chang, CH,Chen, SL,Feng, TF,et al. Lifetime of the B-c meson and some relevant problems[J]. PHYSICAL REVIEW D,2001,64(1):-.
APA Chang, CH,Chen, SL,Feng, TF,Li, XQ,&Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2001).Lifetime of the B-c meson and some relevant problems.PHYSICAL REVIEW D,64(1),-.
MLA Chang, CH,et al."Lifetime of the B-c meson and some relevant problems".PHYSICAL REVIEW D 64.1(2001):-.
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