Chinese Physics C > 2006, Vol. 30 > Issue(4): 289-293

Branching ratio of rare decay B⁰(B_s)→γνν

Institute of High Energy Physics, CAS, Beijing 100049, China2 College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China3 Mathematics and Physics Department, Shijiazhuang Railway Institute,Shijiazhuang 050043, China

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Abstract：
The three-body decay B ⁰(B _s)→γνν can occur via penguin and box diagrams in the Standard Model (SM). These channels are useful to determine the decay constant f _B(f _B _s) and B (B _s) meson wave function. Using the B meson wave function determined in hadronic B (B _s) decays, we calculate and get the branching ratio of order 10 ^－9and 10 ^－8for B ⁰and B _sdecay, respectively. They agree with previous calculations.

References

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CHEN Jun-Xiao, HOU Zhao-Yu, LI Ying and Branching ratio of rare decay B ⁰(B _s)→γνν[J]. Chinese Physics C, 2006, 30(4): 289-293.

CHEN Jun-Xiao, HOU Zhao-Yu, LI Ying and Branching ratio of rare decay B ⁰(B _s)→γνν[J]. Chinese Physics C, 2006, 30(4): 289-293. shu

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Received: 2005-09-11
Revised: 2005-11-25

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Branching ratio of rare decay B⁰(B_s)→γνν

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Institute of High Energy Physics, CAS, Beijing 100049, China2 College of Physics Science and Information Engineering, Hebei Normal University, Shijiazhuang 050016, China3 Mathematics and Physics Department, Shijiazhuang Railway Institute,Shijiazhuang 050043, China

Received Date:2005-09-11

Accepted Date:2005-11-25

Available Online:2006-04-05

Abstract:The three-body decay B⁰(B_s)→γνν can occur via penguin and box diagrams in the Standard Model (SM). These channels are useful to determine the decay constant f_B(f_B_s) and B (B_s) meson wave function. Using the B meson wave function determined in hadronic B (B_s) decays, we calculate and get the branching ratio of order 10^－9and 10^－8for B⁰and B_sdecay, respectively. They agree with previous calculations.

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Branching ratio of rare decay B⁰(B_s)→γνν

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