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Qin, Q; Zou, ZT; Li, Y3; Lu, CD
Constraining the UT angle gamma by CP violation parameters in B-0 -> pi(+)pi(-)
Source PublicationCHINESE PHYSICS C
Language英语
KeywordCP violation HEAVY MESON DECAYS gamma extraction PERTURBATIVE QCD B meson decay B-S FACTORIZATION
AbstractWe calculate the tree and penguin amplitudes in the B-0 -> pi(+)pi(-) decay channel employing the perturbative QCD factorization approach. Using the amplitudes as input with the theoretical uncertainties sufficiently considered, we constrain the UT angle gamma to 53 degrees <= gamma <= 70 degrees, from the measurements of the CP violation parameters C pi+pi- and S pi+pi- in B-0 -> pi(+)pi(-). The U-spin breaking effect between B-0 -> pi(+)pi(-) and B-s(0) -> K+K- is estimated to be around 30%.
2016
Volume40Issue:3Pages:31001
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1088/1674-1137/40/3/031001
Indexed BySCI
Funding OrganizationNational Science Foundation of China [11175151, 11235005, 11375208, 11447032, 11575151] ; Natural Science Foundation of Shandong Province [ZR2014AQ013] ; Program for New Century Excellent Talents in University (NCET) by Ministry of Education of P.R. China [NCET-13-0991]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23073
Collection理论物理所科研产出_SCI论文
Affiliation1.[Qin, Qin
2.Inst High Energy Phys, Beijing 100049, Peoples R China
3.[Zou, Zhi-Tian
4.Yantai Univ, Dept Phys, Yantai 264005, Peoples R China
5.[Li, Ying
6.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Qin, Q,Zou, ZT,Li, Y,et al. Constraining the UT angle gamma by CP violation parameters in B-0 -> pi(+)pi(-)[J]. CHINESE PHYSICS C,2016,40(3):31001.
APA Qin, Q,Zou, ZT,Li, Y,&Lu, CD.(2016).Constraining the UT angle gamma by CP violation parameters in B-0 -> pi(+)pi(-).CHINESE PHYSICS C,40(3),31001.
MLA Qin, Q,et al."Constraining the UT angle gamma by CP violation parameters in B-0 -> pi(+)pi(-)".CHINESE PHYSICS C 40.3(2016):31001.
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