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19932023
most citedTwo-loop renormalization group equations for soft SUSY breaking scalar interactions: supergraph method

250 citations · 1.2k across the 30 of their papers we have counts for

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hep-ph2023

Long-lived Higgsino pairs decaying within the LHC detectors

Francesca Borzumati, Kaoru Hagiwara, Kentarou Mawatari +2

Pair-produced long-lived lightest Higgsinos decaying within a few meters in the LHC detectors are considered. The relatively light nearly-pure Higgsino states object of this study…

hep-ph2017★ 9 cited

The MSSM without Gluinos; an Effective Field Theory for the Stop Sector

Jason Aebischer, Andreas Crivellin, Christoph Greub +1

In this article we study the MSSM with stops and Higgs scalars much lighter than gluinos and squarks of the first two generations. In this setup, one should use an effective field…

hep-ph2015

Higgs-bosons couplings to quarks and leptons in the supersymmetric Standard Model with a gauge singlet

Andreas Crivellin, Youichi Yamada

The loop corrections to the couplings of Higgs bosons to quarks and charged leptons are calculated within supersymmetric versions of the Standard Model, extended by a gauge singlet…

hep-ph2009★ 31 cited

Electroweak two-loop contribution to the mass splitting within a new heavy SU(2) fermion multiplet

Youichi Yamada

New heavy particles in an SU(2)_L multiplet, sometimes introduced in extensions of the standard model, have highly degenerate tree-level mass M if their couplings to the Higgs boso…

hep-ph2007★ 14 cited

b\to sν\barν decay in the MSSM: Implication of b\to sγat large tan beta

Youichi Yamada

The decay is discussed in the minimal supersymmetric standard model with general flavor mixing for squarks, at large . In this case, in addition to the chargi…

hep-ph2006★ 3 cited

Two-loop SUSY QCD correction to the gluino pole mass

Youichi Yamada

We calculate the pole mass of the gluino as a function of the running parameters in the lagrangian, to O(alpha_s^2) in SUSY QCD. The correction shifts the pole mass from the runnin…