1993/08/02 by A. Ali, Ahmed Ali, Gian F. Giudice +4 · 4 citations
Mathematics · Physics and Astronomy · #Asymmetry #Bar (unit) #Fermion #Higgs boson #Invariant mass #Mathematical analysis #Mathematics #Neutrino Physics Research #Nuclear physics #Operator (biology) #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Sign (mathematics) #Standard Model (mathematical formulation) #hep-ph
paper · pdf · doi:10.1007/bf01624585
published as Z.Phys. C67 (1995) 417-432 · LaTeX, 36 pages, 11 figures appended after \end{document} as uu-encoded and compressed .eps files, uses epsf, CERN-TH.7346/94
arxiv created 1993/08/02 · openalex publication_date 1995/09/01 · arxiv updated 2015/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Motivated by the experimental accessibility of rare B decays in the ongoing and planned experiments, we propose to undertake a model-independent analysis of the inclusive decay rates and distributions in the processes \bgamaxs~ and \Bsell ~(B=B^± or B0d). We show how measurements of the decay rates and distributions in these processes would allow us to extract the magnitude and sign of the dominant Wilson coefficients of the magnetic moment operator \mb sL σμν bR Fμν and the four-fermion operators (sL γμbL)(ℓ γμ ℓ) and (sL γμbL)(ℓ γμγ5 ℓ). Non-standard-model effects could thus manifest themselves at low energy in rare B decays through the Wilson coefficient having values distinctly different from their standard-model counterparts. We illustrate this possibility using the examples of the two-doublet Higgs models and the minimal supersymmetric models. The dilepton invariant mass spectrum and the forward-backward asymmetry of ℓ+ in the centre-of-mass system of the dilepton pair in the decay \Bsell ~are also worked out for the standard model and some representative solutions for the other two models.