The B → XSγγ rare decay

1996/12/17 by L. Reina, Laura Reina, Giulia Ricciardi +2 · 3 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-2693(97)00084-1

published as Phys.Lett. B396 (1997) 231-237 · 12 pages, 5 EPS figures, requires Latex2e, epsf.sty, cite.sty and amssymb.sty

arxiv created 1996/12/17 · openalex publication_date 1997/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The rare decay B -> X_s gamma gamma is studied in the Standard Model (SM) and in two different versions (Model I and Model II) of the Two Higgs Doublet Model (2HDM). In the SM the branching ratio into ``hard photons'' is about 10^(-7) and can be appreciably different in the 2HDM. We also introduce a forward-backward asymmetry which gives an additional handle to discriminate different models.

Citations

• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0

Cited by

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• Background gluon effects onB→Xsγγ
• Probing photon helicity in radiative B decays via charmonium resonance interference