منابع مشابه
Supersymmetry and the anomalous anomalous magnetic moment of the muon.
The recently reported measurement of the muon's anomalous magnetic moment differs from the standard model prediction by 2.6 sigma. We examine the implications of this discrepancy for supersymmetry. Deviations of the reported magnitude are generic in supersymmetric theories. Based on the new result, we derive model-independent upper bounds on the masses of observable supersymmetric particles. We...
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We present a scenario wherein the anomalous U(1) D–term of string origin triggers supersymmetry breaking and generates naturally a Split Supersymmetry spectrum. When the gaugino and the Higgsino masses (which are of the same order of magnitude) are set at the TeV scale, we find the scalar masses to be in the range (106 − 108) GeV. The U(1) D–term provides a small expansion parameter which we us...
متن کاملMuon anomalous magnetic moment from effective supersymmetry
Abstract We present a detailed analysis on the possible maximal value of the muon (g− 2)μ ≡ 2aμ within the context of effective SUSY models with R parity conservation. First of all, the mixing among the second and the third family sleptons can contribute at one loop level to the aSUSY μ and τ → μγ simultaneously. One finds that the aSUSY μ can be as large as (10 − 20) × 10−10 for any tan β, imp...
متن کاملA Model with Anomalous U(1) Induced Supersymmetry Breaking
A model based on an anomalous Abelian symmetry U(1)1 × U(1)2 is presented. This symmetry is responsible for both supersymmetry breaking and fermion mass generation. Quark and squark mass matrices are aligned to prevent large flavor-changing neutral current and CP-violation. E-mail address: [email protected] 1. Supersymmetry is a good candidate for a theory beyond the standard model, and s...
متن کاملMuon Anomalous Magnetic Moment , Two - Higgs - Doublet Model , and Supersymmetry
The recent measurement of the muon anomalous magnetic moment aμ shows a 2.6σ deviation from the standard model value. We show that it puts strong constraints on the parameter space of the two-Higgs doublet model (2HDM) II. The dominant contribution of the Higgs bosons comes at the two-loop level, and in order to explain the data it favors a pseudoscalar A with a light mass range and a large tan...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2019
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.122.231602