QCD corrections to b → sγγ and exclusive Bs → sγγ decay

Chia Hung V. Chang; Guey Lin Lin; York Peng Yao

doi:10.1016/S0370-2693(97)01208-2

QCD corrections to b → sγγ and exclusive B_s → sγγ decay

Chia Hung V. Chang^*
, Guey Lin Lin
, York Peng Yao

^*此作品的通信作者

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

53 引文斯高帕斯（Scopus）

摘要

The short distance QCD corrections to b → sγγ are calculated in the leading logarithmic approximation. The equivalence of operator basis reduction for S-matrix elements by using the equations of motion or by proving a low energy theorem is discussed. We apply the above results to the exclusive B_s → γγ decay. The branching ratio of this decay is found to be 5 × 10^-7 in the Standard Model. We also found that QCD corrections modify considerably the ratio between CP-even and CP-odd two-photon amplitudes.

原文	英語
頁（從 - 到）	395-401
頁數	7
期刊	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
卷	415
發行號	4
DOIs	https://doi.org/10.1016/S0370-2693(97)01208-2
出版狀態	已發佈 - 1997 12月 25
對外發佈	是

ASJC Scopus subject areas

核能與高能物理

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10.1016/S0370-2693(97)01208-2

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title = "QCD corrections to b → sγγ and exclusive Bs → sγγ decay",

abstract = "The short distance QCD corrections to b → sγγ are calculated in the leading logarithmic approximation. The equivalence of operator basis reduction for S-matrix elements by using the equations of motion or by proving a low energy theorem is discussed. We apply the above results to the exclusive Bs → γγ decay. The branching ratio of this decay is found to be 5 × 10-7 in the Standard Model. We also found that QCD corrections modify considerably the ratio between CP-even and CP-odd two-photon amplitudes.",

author = "Chang, \{Chia Hung V.\} and Lin, \{Guey Lin\} and Yao, \{York Peng\}",

note = "Funding Information: We thank R. Akhoury for a discussion, and L. Reina for pointing out a sign error and a misprint in the earlier version of the manuscript. GLL also likes to thank particle theory group at U. of Michigan for their hospitality, where part of this work is done. The works of CHC and GLL are supported in part by National Science Council of R.O.C. under grant numbers NSC 86-2112-M-007-020 and NSC 86-2112-M-009-012; YPY's work is partially supported by the U. S. Department of Energy. ",

year = "1997",

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day = "25",

doi = "10.1016/S0370-2693(97)01208-2",

language = "English",

volume = "415",

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T1 - QCD corrections to b → sγγ and exclusive Bs → sγγ decay

AU - Chang, Chia Hung V.

AU - Lin, Guey Lin

AU - Yao, York Peng

N1 - Funding Information: We thank R. Akhoury for a discussion, and L. Reina for pointing out a sign error and a misprint in the earlier version of the manuscript. GLL also likes to thank particle theory group at U. of Michigan for their hospitality, where part of this work is done. The works of CHC and GLL are supported in part by National Science Council of R.O.C. under grant numbers NSC 86-2112-M-007-020 and NSC 86-2112-M-009-012; YPY's work is partially supported by the U. S. Department of Energy.

PY - 1997/12/25

Y1 - 1997/12/25

N2 - The short distance QCD corrections to b → sγγ are calculated in the leading logarithmic approximation. The equivalence of operator basis reduction for S-matrix elements by using the equations of motion or by proving a low energy theorem is discussed. We apply the above results to the exclusive Bs → γγ decay. The branching ratio of this decay is found to be 5 × 10-7 in the Standard Model. We also found that QCD corrections modify considerably the ratio between CP-even and CP-odd two-photon amplitudes.

AB - The short distance QCD corrections to b → sγγ are calculated in the leading logarithmic approximation. The equivalence of operator basis reduction for S-matrix elements by using the equations of motion or by proving a low energy theorem is discussed. We apply the above results to the exclusive Bs → γγ decay. The branching ratio of this decay is found to be 5 × 10-7 in the Standard Model. We also found that QCD corrections modify considerably the ratio between CP-even and CP-odd two-photon amplitudes.

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U2 - 10.1016/S0370-2693(97)01208-2

DO - 10.1016/S0370-2693(97)01208-2

M3 - Article

AN - SCOPUS:0345986599

SN - 0370-2693

VL - 415

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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

ER -

QCD corrections to b → sγγ and exclusive Bs → sγγ decay

摘要

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QCD corrections to b → sγγ and exclusive B_s → sγγ decay