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Constraints on new physics from rare (semi-)leptonic B decays

2013/05/24 by David M. Straub, Straub, David M.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1305.5704

openalex publication_date 2013/05/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The measurements of rare leptonic and semi-leptonic B decays performed at the LHC, not showing any significant deviations from the Standard Model expectations, put strong constraints on new physics. A brief account of the impact of recent measurements is given. As a concrete example, models with partial compositeness are discussed, where tree-level flavour-changing Z couplings lead to potentially visibile effects in rare B (and K) decays that will be scrutinized experimentally in the near future.

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