Analysis of the radiative Λ_b→ Λγ transition in SM and scenarios with one or two universal extra dimensions

2013/03/09 by K. Azizi, S. Kartal, Azizi, K. +6
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1303.2233

22 Pages, 4 Figures and 5 Tables

openalex publication_date 2013/03/09 · arxiv created 2013/07/19 · arxiv updated 2013/07/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We investigate the radiative process of the Λ_b→ Λγ in the standard model as well as models with one or two compact universal extra dimensions. Using the form factors entered to the low energy matrix elements, calculated via light cone QCD in full theory, we calculate the total decay width and branching ratio of this decay channel. We compare the results of the extra dimensional models with those of the standard model on the considered physical quantities and look for the deviations of the results from the standard model predictions at different values of the compactification scale (1/R).

Citations

• B¯→Xsγin two universal extra dimensions
• Rare Decays With LHCb
• Double-lepton polarization asymmetries and polarized forward backward asymmetries in the rareb→sℓ+ℓ−decays in a single universal extra dimension scenario
• Large Mass Hierarchy from a Small Extra Dimension
• Double-lepton polarization asymmetries in Λb→Λℓ+ℓ- decay in universal extra dimension model
• Phenomenological constraints on universal extra dimensions at LHC and electroweak precision test

Related

• Looking for the effects of New Physics in the Λ_b \longrightarrow Λ_c(→ Λπ) ℓ ν decay mode
• B¯→Xsγin two universal extra dimensions
• A study on the rare radiative decay B_c → D_s^*γ in technicolor with scalars
• The rare radiative decay B_s → νν γ in beyond Standard Model scenarios
• Phenomenological study of the double radiative decay B ->Kγγ