To understand the rare decay B-s -> pi(+)pi(-)l(+)l(-)

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	To understand the rare decay B-s -> pi(+)pi(-)l(+)l(-)
	Wang, W; Zhu, RL
刊名	PHYSICS LETTERS B
	2015
卷号	743 期号:0 页码:467-471
通讯作者	Zhu, RL (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China.
英文摘要	Motivated by the LHCb measurement, we analyze the B-s -> pi(+)pi(-)l(+)l(-) decay in the kinematics region where the pion pairs have invariant massesin the range 0.5-1.3 GeV and muon pairs do not originate from a resonance. The scalar pi(+)pi(-) form factor induced by the strange (s) over bars current is predicted by the unitarized approach rooted in the chiral perturbation theory. Using the two-hadron light-cone distribution amplitude, we then can derive the B-s -> pi(+)pi(-) transition form factor in the light-cone sum rules approach. Merging these quantities, we present our results for differential decay width which can generally agree with the experimental data. More accurate measurements at the LHC and KEKB in future are helpful to validate our formalism and determine the inputs in this approach. (C) 2015 The Authors. Published by Elsevier B.V.
学科主题	Astronomy & Astrophysics ; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
关键词[WOS]	CHIRAL PERTURBATION-THEORY ; TRANSITION FORM-FACTORS ; QCD APPROACH ; DISTRIBUTION AMPLITUDES ; SCALAR MESONS ; SUM-RULES ; ONE LOOP ; PI-PI ; EXPANSION ; F(0)(980)
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21033]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Wang, W,Zhu, RL. To understand the rare decay B-s -> pi(+)pi(-)l(+)l(-)[J]. PHYSICS LETTERS B,2015,743(0):467-471.
APA	Wang, W,&Zhu, RL.(2015).To understand the rare decay B-s -> pi(+)pi(-)l(+)l(-).PHYSICS LETTERS B,743(0),467-471.
MLA	Wang, W,et al."To understand the rare decay B-s -> pi(+)pi(-)l(+)l(-)".PHYSICS LETTERS B 743.0(2015):467-471.