Background gluon effects onB→Xsγγ

1998/02/23 by S. Rai Choudhury, York-Peng Yao, York‐Peng Yao
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.58.034011

published as Phys.Rev.D58:034011,1998 · 12 pages Plain TeX. 5 figures

arxiv created 1998/02/23 · openalex publication_date 1998/07/07 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider nonperturbative QCD effects on the energy spectrum of either one of the photons in \stackrel\ensuremath→BX_s\ensuremathγ\ensuremathγ. These are due to the subprocesses in which a charm quark loop interacts with a self-consistently produced background static QCD field. The magnitude is estimated to be a few percent in \stackrel\ensuremath→BX_s\ensuremathγ\ensuremathγ, but can be quite substantial in B_s\ensuremath→\ensuremathγ\ensuremathγ. An extension of the Euler-Heisenberg Lagrangian is given.

Citations

• The B → XSγγ rare decay
• Comment on nonperturbative effects in
• Leading logarithmic QCD corrections to the Bs → γγ decay rate including long-distance effects through Bs → φγ → γγ
• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0