Research on branching ratio of B0→π－l+ν l decay | Zendy

Bingxin Zhang | Zendy; Xiao-Jing Liu | Zendy; Zhang Baijun | Zendy; Hua Zhong | Zendy; Xiao Li | Zendy; Bing Liu | Zendy; Yiheng Wu | Zendy; Qingcai Wang | Zendy; Yan Wang | Zendy

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Research on branching ratio of B0→π－l+ν l decay

Author(s) -

Bingxin Zhang,

Xiao-Jing Liu,

Zhang Baijun,

Hua Zhong,

Xiao Li,

Bing Liu,

Yiheng Wu,

Qingcai Wang,

Yan Wang

Publication year - 2011

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.60.041301

Subject(s) - physics , branching fraction , branching (polymer chemistry) , particle physics , nuclear physics , particle decay , mass ratio , elementary particle , astrophysics , chemistry , organic chemistry

We choose a correlation function of chiral current to calculate the form factors f+Bπ(q2), f Bπ(q2) and the scalar form factor of f0(q2), thereby we can study the effect of leptonic mass on B0→πl+ν l (l=e, μ, τ) decay. In this paper, we calculate the branching ratio of B0→πl+ν l(l=e, μ, τ) decay for the first time, and find the leptonic mssses me and mμ may be ignored, but the heavy leptonic mass mτ may not be ignored and it can affect the branching ratio. The calculation results are consistent with the experimental data.

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