The Higgs sector of the complex MSSM at two-loop order : QCD contributions

By Sven Heinemeyer, Wolfgang Hollik, Heidi Rzehak, Georg Weiglein. 2007

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Abstract Results are presented for the leading two-loop contributions of O ( α t α s ) to the masses and mixing effects in the Higgs sector of the MSSM with complex parameters. They are obtained in the Feynman-diagrammatic approach using on-shell renormalization. The full dependence on all complex phases is taken into account. The renormalization of the appropriate contributions of the Higgs-boson sector and the scalar top and bottom sector is discussed. Our numerical analysis for the lightest MSSM Higgs-boson mass is based on the new two-loop corrections, supplemented by the full one-loop result. The corrections induced by the phase variation in the scalar top sector are enhanced by the two-loop contributions. We find that the corresponding shift in M h 1 can amount to 5 GeV .

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/18a9d6834573bff84b2a10830cd26dd2fc9eb8d3

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In Nuclear and High Energy Physics

Citations in the corpus

Light MSSM Higgs boson mass to three-loop accuracy (2010, background): “Let us nevertheless mention that in particular CP violating phases can lead to a shift of a few GeV in Mh, see, e.g., refs. [ 11 , 12]. In ref.”
Reconciling EFT and hybrid calculations of the light MSSM Higgs-boson mass (2017, unknown): “, two-loop corrections of O(αtαs, αbαs, α(2) t , αtαb, α(2) b) are incorporated [19,21,25,27,28]),(5) and by default the external momentum of the two-loop graphs is neglected.”