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SUSY in the Light of B Physics and Electroweak Precision Observables

2007/11/01 by G. Weiglein, Weiglein, Georg
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.0711.0200

openalex publication_date 2007/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Indirect information about the possible scale of supersymmetry (SUSY) breaking can be obtained from the comparison of precisely measured observables (and also of exclusion limits) with accurate theory predictions incorporating SUSY loop corrections. Recent results are reviewed obtained from a combined analysis of the most sensitive electroweak precision observables (EWPO), MW, sin2thetaeff, GammaZ, (g-2)μand Mh, and B-physics observables (BPO), BR(b -> s γ), BR(Bs -> μ+μ-), BR(Bu -> τντ) and ΔMBs. Assuming that the lightest supersymmetric particle (LSP) provides the cold dark matter density preferred by WMAP and other cosmological data, χ2 fits are performed to the parameters of the constrained minimal supersymmetric extension of the Standard Model (CMSSM), in which the SUSY-breaking parameters are universal at the GUT scale, and the non-universal Higgs model (NUHM), in which this constraint is relaxed for the soft SUSY-breaking contributions to the Higgs masses. Within the CMSSM indirect bounds on the mass of the lightest CP-even Higgs boson are derived.

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