David Temes

Flavor physics at large tan beta with a binolike lightest supersymmetric particle

The MSSM with large tan(beta) and heavy squarks is a theoretically well motivated and phenomenologically interesting extension of the SM. This scenario naturally accommodates the (g-2)_\mu anomaly and the upper bound on the Higgs boson mass. In a wide region of the parameter space, visible non-standard effects are expected in a few low-energy observables, such as BR(B->tau nu), BR(B->l+ l-), BR(B->Xs gamma), and BR(mu->e gamma). We analyse the correlations of these non-standard effects under the additional assumption that the relic density of a Bino-like LSP accommodates the observed dark matter distribution.

Flavor changing neutral Higgs boson decays from squark Gluino loops

We study the flavour changing neutral Higgs boson decays that can be induced from genuine supersymmetric particles at the one-loop level and within the context of the Minimal Supersymmetric Standard Model. We consider all the possible flavour changing decay channels of the three neutral Higgs bosons into second and third generation quarks, and focus on the Supersymmetric-QCD corrections from squark-gluino loops which are expected to provide the dominant contributions. We assume here the more general hypothesis for flavour mixing, where there is misalignment between the quark and squark sectors, leading to a flavour non-diagonal squark mass matrix. The form factors involved, and the corresponding Higgs partial decay widths and branching ratios, are computed both analytically and numerically, and their behaviour with the parameters of the Minimal Supersymmetric Standard Model and with the squark mass mixing are analyzed in full detail. The large rates found, are explained in terms of the non-decoupling behaviour of these squark-gluino loop corrections in the scenario with very large supersymmetric mass parameters. Our results show that if these decays are seen in future colliders they could provide clear indirect signals of supersymmetry.

Supersymmetric QCD corrections to the minimal supersymmetric standard model h{sup 0}b{bar B} vertex in the decoupling limit

We analyze the supersymmetric (SUSY) QCD contribution to the

Effective Higgs-quark-quark couplings from a heavy supersymmetric spectrum

h^0 b \bar{b}

Optimal observables to search for indirect supersymmetric QCD signals in Higgs boson decays

coupling at one loop in the Minimal Supersymmetric Model (MSSM) in the decoupling limit. Analytic expressions in the large SUSY mass region are derived and the decoupling behavior of the corrections is examined in various limiting cases, where some or all of the SUSY mass parameters become large. We show that in the decoupling limit of large SUSY mass parameters and large CP-odd Higgs mass, the

Quantum corrections to the MSSM h0bb¯ vertex: Decoupling limit

h^0 b \bar b

Non‐decoupling Effects of SUSY in the Physics of Higgs Bosons and their Phenomenological Implications

coupling approaches its Standard Model value at one loop. However, the onset of decoupling is delayed when

Lepton flavor violating Higgs boson decays from massive seesaw neutrinos

\tan\beta

Lepton flavor violating Higgs boson decays in the MSSM-seesaw

is large. In addition, the one-loop SUSY-QCD corrections decouple if the masses of either the bottom squarks or the gluino are separately taken large; although the approach to decoupling is significantly slower in the latter case.

Optimal observables to search for indirect SUSY-QCD signals in Higgs bosons decays

In this paper we study the Yukawa Higgs-quark-quark interactions that are generated from radiative corrections of squarks and gluinos, in the minimal supersymmetric standard model. We compute the corrections to the effective action for Higgs and quark fields that are produced by explicit integration in the path integral formalism of all the squarks and gluinos at the one-loop level and order