FCNCBsandΛbtransitions: Standard model versus a single universal extra dimension scenario

2007/09/30 by Pietro Colangelo, P. Colangelo, F. De Fazio +4 · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Combinatorics #Computer science #Dimension (graph theory) #Hadron #High-Energy Particle Collisions Research #Lambda #Machine learning #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #RADIUS #hep-ph

paper · pdf · doi:10.1103/physrevd.77.055019

published as Phys.Rev.D77:055019,2008 · LaTex, 8 pages, 7 eps figures. Version to be published in Physical Review D

arxiv created 2008/02/15 · openalex publication_date 2008/03/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the flavor changing neutral current B_s\ensuremath→\ensuremathφ\ensuremathγ, \ensuremathφ\ensuremathν\ensuremathν and \ensuremathΛ_b\ensuremath→\ensuremathΛ\ensuremathγ, \ensuremathΛ\ensuremathν\ensuremathν transitions in the standard model and in a scenario with a single universal extra dimension. In particular, we focus on the present knowledge of the hadronic uncertainties and on possible improvements. We discuss how the measurements of these modes can be used to constrain the new parameter involved in the extra-dimensional scenario, the radius R of the extra dimension, completing the information available from B-factories. The rates of these b\ensuremath→s induced decays are within the reach of new experiments, such as LHCb.

Citations

• Fermionic next-to-next-to leading logarithmic corrections tob→sγ
• Observation ofBs0−B¯s0Oscillations
• Bound on minimal universal extra dimensions fromB¯→Xsγ
• Bs,d→γγdecay in the model with one universal extra dimension
• Study of FCNC-mediated rareBsdecays in a single universal extra dimension scenario
• Magnetic dipole operator contributions to the photon energy spectrum in B¯→Xsγ at O(αs2)
• Double-lepton polarization asymmetries in Λb→Λℓ+ℓ- decay in universal extra dimension model
• Extra spacetime dimensions and unification
• Three-Loop Mixing of Dipole Operators
• Anomalies, Chern-Simons terms and chiral delocalization in extra dimensions
• Effects of Superheavy Quarks and Leptons in Low-Energy Weak Processes KL-> Formula, K+-> + Formula and K0 Formula0
• Review of Particle Physics

Cited by

• Effects of a Single Universal Extra Dimension in Bc→Ds,Dl+l- Decays
• Rare decays of Λ b →Λ γ and Λ b →Λ l + l − in universal extra-dimension model