The strong decays of orbitally excited BsJ* mesons by improved Bethe-Salpeter method

Zhi Hui Wang; Guo Li Wang; Hui Feng Fu; Yue Jiang

doi:10.1016/j.physletb.2011.11.051

The strong decays of orbitally excited BsJ* mesons by improved Bethe-Salpeter method

Zhi Hui Wang
, Guo Li Wang^*
, Hui Feng Fu
, Yue Jiang

^*Corresponding author for this work

School of Physics

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We calculate the masses and the strong decays of orbitally excited states B_s0, Bs1', B_s1 and B_s2 by the improved Bethe-Salpeter method. The predicted masses of B_s0 and Bs1' are MBs0=5.723±0.280 GeV, MBs1'=5.774±0.330 GeV. We calculate the isospin symmetry violating decay processes B_s0→B_sπ and Bs1'→Bs*π through π⁰-η mixing and get small widths. Considering the uncertainties of the masses, for B_s0 and Bs1', we also calculate the OZI allowed decay channels: Bs0→BK and Bs1'→B*K. For B_s1 and B_s2, the OZI allowed decay channels Bs1→B*K, Bs2→BK and Bs2→B*K are studied. In all the decay channels, the reduction formula, PCAC relation and low energy theorem are used to estimate the decay widths. We also obtain the strong coupling constants GBs0Bsπ, GBs0BK, GBs1'Bs*π, FBs1'Bs*π, GBs1'B*K, FBs1'B*K, GBs1B*K, FBs1B*K, GBs2BK and GBs2B*K.

Original language	English
Pages (from-to)	389-397
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	706
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2011.11.051
State	Published - 5 Jan 2012

Keywords

Improved BS method
Orbitally excited BsJ* mesons
Strong decay

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10.1016/j.physletb.2011.11.051

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title = "The strong decays of orbitally excited BsJ* mesons by improved Bethe-Salpeter method",

abstract = "We calculate the masses and the strong decays of orbitally excited states Bs0, Bs1', Bs1 and Bs2 by the improved Bethe-Salpeter method. The predicted masses of Bs0 and Bs1' are MBs0=5.723±0.280 GeV, MBs1'=5.774±0.330 GeV. We calculate the isospin symmetry violating decay processes Bs0→Bsπ and Bs1'→Bs*π through π0-η mixing and get small widths. Considering the uncertainties of the masses, for Bs0 and Bs1', we also calculate the OZI allowed decay channels: Bs0→BK and Bs1'→B*K. For Bs1 and Bs2, the OZI allowed decay channels Bs1→B*K, Bs2→BK and Bs2→B*K are studied. In all the decay channels, the reduction formula, PCAC relation and low energy theorem are used to estimate the decay widths. We also obtain the strong coupling constants GBs0Bsπ, GBs0BK, GBs1'Bs*π, FBs1'Bs*π, GBs1'B*K, FBs1'B*K, GBs1B*K, FBs1B*K, GBs2BK and GBs2B*K.",

keywords = "Improved BS method, Orbitally excited BsJ* mesons, Strong decay",

author = "Wang, \{Zhi Hui\} and Wang, \{Guo Li\} and Fu, \{Hui Feng\} and Yue Jiang",

year = "2012",

month = jan,

day = "5",

doi = "10.1016/j.physletb.2011.11.051",

language = "英语",

volume = "706",

pages = "389--397",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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TY - JOUR

T1 - The strong decays of orbitally excited BsJ* mesons by improved Bethe-Salpeter method

AU - Wang, Zhi Hui

AU - Wang, Guo Li

AU - Fu, Hui Feng

AU - Jiang, Yue

PY - 2012/1/5

Y1 - 2012/1/5

N2 - We calculate the masses and the strong decays of orbitally excited states Bs0, Bs1', Bs1 and Bs2 by the improved Bethe-Salpeter method. The predicted masses of Bs0 and Bs1' are MBs0=5.723±0.280 GeV, MBs1'=5.774±0.330 GeV. We calculate the isospin symmetry violating decay processes Bs0→Bsπ and Bs1'→Bs*π through π0-η mixing and get small widths. Considering the uncertainties of the masses, for Bs0 and Bs1', we also calculate the OZI allowed decay channels: Bs0→BK and Bs1'→B*K. For Bs1 and Bs2, the OZI allowed decay channels Bs1→B*K, Bs2→BK and Bs2→B*K are studied. In all the decay channels, the reduction formula, PCAC relation and low energy theorem are used to estimate the decay widths. We also obtain the strong coupling constants GBs0Bsπ, GBs0BK, GBs1'Bs*π, FBs1'Bs*π, GBs1'B*K, FBs1'B*K, GBs1B*K, FBs1B*K, GBs2BK and GBs2B*K.

AB - We calculate the masses and the strong decays of orbitally excited states Bs0, Bs1', Bs1 and Bs2 by the improved Bethe-Salpeter method. The predicted masses of Bs0 and Bs1' are MBs0=5.723±0.280 GeV, MBs1'=5.774±0.330 GeV. We calculate the isospin symmetry violating decay processes Bs0→Bsπ and Bs1'→Bs*π through π0-η mixing and get small widths. Considering the uncertainties of the masses, for Bs0 and Bs1', we also calculate the OZI allowed decay channels: Bs0→BK and Bs1'→B*K. For Bs1 and Bs2, the OZI allowed decay channels Bs1→B*K, Bs2→BK and Bs2→B*K are studied. In all the decay channels, the reduction formula, PCAC relation and low energy theorem are used to estimate the decay widths. We also obtain the strong coupling constants GBs0Bsπ, GBs0BK, GBs1'Bs*π, FBs1'Bs*π, GBs1'B*K, FBs1'B*K, GBs1B*K, FBs1B*K, GBs2BK and GBs2B*K.

KW - Improved BS method

KW - Orbitally excited BsJ mesons

KW - Strong decay

UR - https://www.scopus.com/pages/publications/84155172319

U2 - 10.1016/j.physletb.2011.11.051

DO - 10.1016/j.physletb.2011.11.051

M3 - 文章

AN - SCOPUS:84155172319

SN - 0370-2693

VL - 706

SP - 389

EP - 397

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

The strong decays of orbitally excited BsJ* mesons by improved Bethe-Salpeter method

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