Axigluon on like-sign charge asymmetry Asℓb, FCNCs and CP asymmetries in B decays

2010/05/31 by Chuan-Hung Chen, Gaber Faisel · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Asymmetry #BETA (programming language) #Charge (physics) #Combinatorics #Computer science #Geometry #High-Energy Particle Collisions Research #Mathematical analysis #Mathematical physics #Mathematics #Order (exchange) #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Programming language #Quantum Chromodynamics and Particle Interactions #Sign (mathematics) #Tree (set theory) #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2011.01.010

published as Phys.Lett.B696:487-494,2011 · pages 1+18, 8 figures, figures added, discussions extended and references added and updated, version to be published in Physics Letters B

arxiv created 2011/01/11 · openalex publication_date 2011/01/15 · arxiv updated 2015/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

A non-universal axigluon in generalized chiral color models leads to flavor changing neutral currents (FCNCs) at tree level. We analyze phenomenologically the new contributions to B_q (q=d, s) mixing and the related CP asymmetries (CPAs) that are generated by axigluon exchange. We find that although Δm_Bq can give a strict constraint on the parameters of b→ q transition, the precise measurement of sin2β_J/ΨK⁰ can further exclude the parameter space of b→ d transition. The axigluon-mediated effects can enhance the like-sign dimuon charge asymmetry \cal A^b_sℓ by one order of magnitude larger than the standard model prediction. Accordingly, large CPA sin2β^J/Ψϕ_s and CPA difference sin2β_JΨK⁰-sin2β_ϕK⁰ are achieved.

Citations

• New CP phase of Bs–B¯s mixing on T violation in Bd(s)→K∗(ϕ)ℓ+ℓ−
• Novel two-loop supersymmetry effects on theCPasymmetry inB→ϕKs
• Lifetime difference in mixing: Standard Model and beyond
• Review of Particle Physics
• CUBIC MASS RELATION IN SU(3) × U(1) ELECTROWEAK THEORY

Cited by

• Dimuon CP asymmetry in B decays and collider signals in two Higgs doublet models
• Neutral gauge boson contributions to the dimuon charge asymmetry in B decays

Related

• Like-sign dimuon charge asymmetry in the decay of B B-bar pairs
• Charge and CP asymmetries of B_q meson in unparticle physics
• Possible New Physics Signals in b -> s gamma and b -> s l⁺ l^-
• CP asymmetry in flavour-specific B decays
• New CP phase of Bs–B¯s mixing on T violation in Bd(s)→K∗(ϕ)ℓ+ℓ−