Study of B-c -> D pi in the perturbative QCD approach

	Study of B-c -> D pi in the perturbative QCD approach
	Cheng JF(程剑锋); Du DS(杜东生); Lv CD(吕才典); Cheng, JF; Du, DS; Lu, CD
刊名	EUROPEAN PHYSICAL JOURNAL C
	2006
卷号	45 期号:3 页码:711-720
通讯作者	Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	We investigate the branching ratios and direct CP-asymmetries of the B-c(+) -> D-0 pi(+) and B-c(+) -> D+pi(0) decays in the PQCD approach. All the diagrams with emission topology or annihilation topology are calculated strictly. A branching ratio of 10(-6) and 10(-7) for B-c(+) -> D-0 pi(+) and B-c(+) -> D+pi(0) decay is predicted, respectively. Because of the different weak phase and strong phase from penguin operator and two kinds of tree operator contributions, we predict a possible large direct CP-violation: A(CP)(dir)(B-c(+/-) -> D-0 pi(+/-)) approximate to -50% and A(CP)(dir) (B-c(+/-) -> D-+/-pi(0)) approximate to 25% when gamma = 55 degrees, which can be tested in the corning LHC.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000241559300011
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238320]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Cheng JF,Du DS,Lv CD,et al. Study of B-c -> D pi in the perturbative QCD approach[J]. EUROPEAN PHYSICAL JOURNAL C,2006,45(3):711-720.
APA	程剑锋,杜东生,吕才典,Cheng, JF,Du, DS,&Lu, CD.(2006).Study of B-c -> D pi in the perturbative QCD approach.EUROPEAN PHYSICAL JOURNAL C,45(3),711-720.
MLA	程剑锋,et al."Study of B-c -> D pi in the perturbative QCD approach".EUROPEAN PHYSICAL JOURNAL C 45.3(2006):711-720.