scholarly journals A light CP-odd Higgs boson and the muon anomalous magnetic moment

2009 ◽  
Vol 2009 (08) ◽  
pp. 032-032 ◽  
Author(s):  
John F Gunion
Keyword(s):  
Higgs Boson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Muon Anomalous Magnetic Moment

scholarly journals Muon g − 2 in gauge mediation without SUSY CP problem

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Masahiro Ibe ◽  
Shin Kobayashi ◽  
Yuhei Nakayama ◽  
Satoshi Shirai
Keyword(s):  
Higgs Boson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Neutral Current ◽  
Boson Mass ◽  
Higgs Boson Mass ◽  
Gauge Mediation ◽  
Muon Anomalous Magnetic Moment ◽  
Mediation Effects ◽  
Successful Model

Abstract We discuss gauge mediated supersymmetry breaking models which explain the observed muon anomalous magnetic moment and the Higgs boson mass simultaneously. The successful explanation requires the messenger sector which violates the relation motivated by the grand unification theory (GUT). The naive violation of the GUT relation, however, ends up with the CP problem. We propose a model in which the phases of the gaugino masses are aligned despite the violation of the GUT relation. We also consider a model which generates the μ-term and the additional Higgs soft masses squared without causing CP violation. As a result, we find a successful model which explains the muon anomalous magnetic moment and the Higgs boson mass. The model is also free from the CP, flavor-changing neutral current and the lepton flavor violation problems caused by the subdominant gravity mediation effects. The lightest supersymmetric particles are gravitino/goldstini and the next-to-lightest ones are the Wino/Higgsinos in the typical parameter space. We also study the LHC constraints.

scholarly journals Dark matter, muon anomalous magnetic moment, and the XENON1T excess

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Debajyoti Choudhury ◽  
Suvam Maharana ◽  
Vandana Sahdev ◽  
Divya Sachdeva
Keyword(s):  
Dark Matter ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Muon Anomalous Magnetic Moment

scholarly journals Muon anomalous magnetic moment in a calculable model with one extra dimension

2002 ◽  
Vol 634 (1-2) ◽  
pp. 230-246 ◽  
Author(s):  
Giacomo Cacciapaglia ◽  
Marco Cirelli ◽  
Giampaolo Cristadoro
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Extra Dimension ◽  
Muon Anomalous Magnetic Moment

scholarly journals Probing the dark axion portal with muon anomalous magnetic moment

2021 ◽  
Vol 81 (9) ◽  
Author(s):  
Shao-Feng Ge ◽  
Xiao-Dong Ma ◽  
Pedro Pasquini
Keyword(s):  
Parameter Space ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Muon Anomalous Magnetic Moment ◽  
Negative Contribution ◽  
Dark Photon ◽  
Loop Level

AbstractWe propose a new scenario of using the dark axion portal at one-loop level to explain the recently observed muon anomalous magnetic moment by the Fermilab Muon g-2 experiment. Both axion/axion-like particle (ALP) and dark photon are involved in the same vertex with photon. Although ALP or dark photon alone cannot explain muon $$g-2$$ g - 2 , since the former provides only negative contribution while the latter has very much constrained parameter space, dark axion portal can save the situation and significantly extend the allowed parameter space. The observed muon anomalous magnetic moment provides a robust probe of the dark axion portal scenario.

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