MSSM Higgs boson decays to bottom quark pairs reexamined

Guasch, Jaume; Häfliger, P. S.; Spira, M.

doi:10.1103/physrevd.68.115001

Cited by 123 publications

(185 citation statements)

References 48 publications

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“…By setting all the phases to zero we obtain the results for the real MSSM (rMSSM), which agree with those given in [19,25]. Since we are also interested in the effect of the A b phase, corrections proportional to A b are resummed by [20,26] ∆ b = ∆m b 1 + ∆ 1 ,…”

Section: Bottom-higgs Couplingssupporting

confidence: 64%

W∓H±production andCPasymmetry at the LHC

2011

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The dominant contributions to W ∓ H ± production at the LHC are the tree-level bb annihilation and the gg fusion. We perform for the case of the complex MSSM a complete calculation of the NLO EW corrections to the bb annihilation channel and a consistent combination with other contributions including the standard and SUSY QCD corrections and the gg fusion, with resummation of the leading radiative corrections to the bottom-Higgs couplings and the neutral Higgs-boson propagators. We observe a large CP-violating asymmetry, arising mainly from the gg channel.

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Section: Bottom-higgs Couplingssupporting

confidence: 64%

W∓H±production andCPasymmetry at the LHC

2011

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“…The summation formalism can be extended [56] to include corrections proportional to the trilinear coupling A b . However, for the MSSM scenarios under consideration in this work, these corrections turn out to be small, and the corresponding summation effects may safely be neglected.…”

Section: Parameter Renormalization and Resummation Improvementsmentioning

confidence: 99%

Charged-Higgs-boson production at the LHC: Next-to-leading-order supersymmetric QCD corrections

et al. 2011

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Abstract:The dominant production process for heavy charged Higgs bosons at the LHC is the associated production with heavy quarks. We have calculated the next-to-leading-order supersymmetric QCD corrections to charged-Higgs production through the parton processes qq, gg → tbH ± and present results for total cross sections and differential distributions. The QCD corrections reduce the renormalization and factorization scale dependence and thus stabilize the theoretical predictions. We present a comparison of the next-to-leadingorder results for the inclusive cross section with a calculation based on bottom-gluon fusion gb → tH ± and discuss the impact of the next-to-leading-order corrections on charged-Higgs searches at the LHC. 0

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“…The µ-term, which is proportional to tan β, is included in ∆ 2 while the A b -term is included in ∆ 1 . The ∆ 1 correction is typically found to be O(1)% and is therefore often neglected [44]. We point out here that neither the B g 1 terms from the gluinosbottom contribution nor the contributions from the Higgses are proportional to tan β, and therefore they enhance ∆ 1 by ∼12%.…”

Section: Jhep05(2015)088mentioning

confidence: 97%

“…The coupling of the Higgs bosons to the bottom quark depends on the MSSM parameters, particularly, tan β. In addition, the couplings also depend on the bottom quark threshold corrections and the effect of these corrections have been the subject of many works especially in the large tan β regime [41][42][43][44][45][46][47][48][49][50][51][52][53][54]. The low energy effective Lagrangian coupling the bottom quark with the up-and the down-type Higgs bosons in the MSSM including the supersymmetric threshold corrections can be written as…”

Section: Higgs Couplings To the Bottom Quarkmentioning

confidence: 99%

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Threshold corrections to the bottom quark mass revisited

Anandakrishnan

Bryant

Raby

2015

J. High Energ. Phys.

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Threshold corrections to the bottom quark mass are often estimated under the approximation that tan β enhanced contributions are the most dominant. In this work we revisit this common approximation made to the estimation of the supersymmetric threshold corrections to the bottom quark mass. We calculate the full one-loop supersymmetric corrections to the bottom quark mass and survey a large part of the phenomenological MSSM parameter space to study the validity of considering only the tan β enhanced corrections. Our analysis demonstrates that this approximation underestimates the size of the threshold corrections by ∼12.5% for most of the considered parameter space. We discuss the consequences for fitting the bottom quark mass and for the effective couplings to Higgses. We find that it is important to consider the additional contributions when fitting the bottom quark mass but the modifications to the effective Higgs couplings are typically O(few)% for the majority of the parameter space considered.

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MSSM Higgs boson decays to bottom quark pairs reexamined

Cited by 123 publications

References 48 publications

W∓H±production andCPasymmetry at the LHC

W∓H±production andCPasymmetry at the LHC

Charged-Higgs-boson production at the LHC: Next-to-leading-order supersymmetric QCD corrections

Threshold corrections to the bottom quark mass revisited

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