Top anomalous magnetic moment and the two photon decay of Higgs

Abstract

We compute the dependence of the Higgs to two-photon decay rate ${\Gamma }_{h\to \gamma \gamma }$ on the top quark gyromagnetic factor $g_t$ in the heavy top limit and evaluate the expected change for one-loop SM correction to $g_t$. Our results are general and allow consideration of further modifications of $g_t$ and we predict the resultant ${\Gamma }_{h\to \gamma \gamma }$.

4 pages, 2 figures; v2, plot of decay rate expanded range; v3, updated with recent experimental results, removed plot of beta-function

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Cited by in corpus (7)

• The universal Higgs fit
• Chromomagnetic and chromoelectric dipole moments of the top quark in the 4GTHDM
• Limits on the anomalous $Wtq$ couplings
• A precise characterisation of the top quark electro-weak vertices at the ILC
• Higgs two-gluon decay and the top-quark chromomagnetic moment
• Implications of nonsymmetric metric theories for particle physics. New interpretation of the Pauli coupling
• Everlasting interaction: polarization summation without a Landau pole