Can the Higgs sector contribute significantly to the muon anomalous magnetic moment?
نویسندگان
چکیده
A light CP-even Higgs boson withmh ∼ 10 GeV could explain the recent BNL measurement of the muon anomalous magnetic moment, in the framework of a general two-Higgs-doublet extension of the Standard Model. However, the allowed Higgs mass window is quite small and the corresponding model parameters are very constrained. The Higgs sector can contribute significantly to the observed BNL result for g−2 without violating known experimental constraints only if the hZZ coupling (approximately) vanishes and MΥ <∼ mh <∼ 2mB.
منابع مشابه
Minimal Supersymmetric Standard Model Extended by One Additional Higgs Singlet and Its Influence on the Anomalous Magnetic Moment of the Muon*
We present the results of the influence of the minimal supersymmetric standard model extended by an additional Higgs singlet N, with vacuum expectation value vN , on the anomalous magnetic moment of the muon. This gives different mass matrices for the charginos and neutralinos, which are taken into account within the relevant penguin diagrams leading to a contribution ∆aμ to the anomalous magne...
متن کاملMuon anomalous magnetic dipole moment in supersymmetric theories
We study the muon anomalous magnetic dipole moment in supersymmetric theories. The impact of the recent Brookhaven E821 experimental measurement on both modelindependent and model-dependent supersymmetric parameter spaces is discussed in detail. We find that values of tanβ as low as 3 can be obtained while remaining within the E821 one-sigma bound. This requires a light smuon; however, we show ...
متن کاملThe Naturalness, Dark Matter and Muon Anomalous Magnetic Moment in the Supersymmetric Standard Models with a Pseudo-Dirac Gluino
We study the naturalness, dark matter, and muon anomalous magnetic moment in the Supersymmetric Standard Models (SSMs) with a pseudo-Dirac gluino (PDGSSMs) from hybrid F− and D−term supersymmetry (SUSY) breakings. To obtain the observed dark matter relic density and explain the muon anomalous magnetic moment, we find that the low energy fine-tuning measures are larger than about 200 due to stro...
متن کاملA global fit to the anomalous magnetic moment , b → X s γ and Higgs limits in the constrained MSSM
A global fit to the anomalous magnetic moment, b → X s γ and Higgs limits in the constrained MSSM Abstract New data on the anomalous magnetic moment of the muon together with the b → X s γ decay rate and Higgs limits are considered within the supergravity inspired constrained minimal supersymmetric model. We perform a global statistical χ 2 analysis of these data and show that the allowed regio...
متن کاملMuon anomalous magnetic momentand a lower bound on higgs mass due to a stabilized radion in the Randall-Sundrum model
We investigate the model of warped spatial dimension (popularly known as Randall-Sundrum model) in the light of the muon anomalous magnetic moment, aμ[= (g−2) 2 ]. Using the present theoretical value (based on standard model calculation) and the BNL measurement of muon anomalous magnetic moment, we obtain constraints on radion (required to fix the size of the extra dimension) mass mφ and radion...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001