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Heavy pseudoscalar twist-3 distribution amplitudes within QCD theory in background fields
Zhong, T; Wu, XG; 黄涛(理); Huang, T; Fu, HB
2016
Source PublicationEUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
EISSN1434-6052
Volume76Issue:9Pages:509
Corresponding Author黄涛(理)
SubtypeArticle
AbstractIn this paper, we study the properties of the twist-3 distribution amplitude (DA) of the heavy pseudoscalars such as eta(c), B-c, and eta(b). New sum rules for the twist-3 DA moments (HP) and (HP) up to sixth order and up to dimension-six condensates are deduced under the framework of the background field theory. Based on the sum rules for the twist-3 DA moments, we construct a new model for the two twist-3 DAs of the heavy pseudoscalar with the help of the Brodsky-Huang-Lepage prescription. Furthermore, we apply them to the B-c -> eta(c) transition form factor (f(+)(Bc ->eta c)(q(2))) within the light-cone sum rules approach, and the results are comparable with other approaches. It has been found that the twist-3 DAs phi(P)(3;eta c) and phi(sigma)(3;eta c) are important for a reliable prediction of f(+)(Bc ->eta c) (q(2)). For example, at the maximum recoil region, we have f(+)(Bc ->eta c) (0) = 0.674 +/- 0.066, in which those two twist-3 terms provide similar to 33 and similar to 22% contributions. Also we calculate the branching ratio of the semi-leptonic decay B-c -> eta(c)l nu as Br(B-c -> eta(c)l nu) = (9.31(-2.01)(+2.27)) x 10(-3).
DOI10.1140/epjc/s10052-016-4350-z
WOS KeywordCone Distribution Amplitudes ; Sum-rules ; Quantum Chromodynamics ; Wave-functions ; Meson ; Decays
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000384339700001
ADS Bibcode2016EPJC...76..509Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016EPJC...76..509Z
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016EPJC...76..509Z/citations
inspireid1448305
Citation statistics
Cited Times:4 [INSPIRE]
Cited Times:7 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/260636
Collection理论物理室
Corresponding Author黄涛(理)
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zhong, T,Wu, XG,Huang T,et al. Heavy pseudoscalar twist-3 distribution amplitudes within QCD theory in background fields[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(9):509.
APA Zhong, T,Wu, XG,黄涛,Huang, T,&Fu, HB.(2016).Heavy pseudoscalar twist-3 distribution amplitudes within QCD theory in background fields.EUROPEAN PHYSICAL JOURNAL C,76(9),509.
MLA Zhong, T,et al."Heavy pseudoscalar twist-3 distribution amplitudes within QCD theory in background fields".EUROPEAN PHYSICAL JOURNAL C 76.9(2016):509.
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