Phenomenology 2013 Symposium

Session

Higgs IV

7 May 2013, 16:30

University of Pittsburgh

Conveners

Higgs IV

• Andreas Ross (CMU)

103. Non-Decoupling MSSM Higgs in Light of the LHC Higgs Discovery

Dr Tong Li (Monash University)

07/05/2013, 16:30

parallel talk

In the non-decoupling region of the Higgs sector in MSSM, the heavier CP-even Higgs H^0 is SM-like and all five MSSM Higgses are light. We demonstrate that this scenario can accommodate direct collider searches and pass flavor constraints. This scenario can be conclusively explored at the LHC in the near future.

179. Discovering the Neutral MSSM Higgs Bosons in b tau tau Final State

Baris Altunkaynak (University of Oklahoma)

07/05/2013, 16:45

parallel talk

We study the production of the CP-odd Higgs pseudoscalar (A0) and heavier CP-even Higgs scalar (H0) of the Minimal Supersymmetric Standard Model associated with a single b quark at the LHC. Specifically we investigate the discovery potential of the di-tau decay channel of A0/H0 followed by an opposite flavor leptonic decay of the taus, i.e. b g -> b A0/H0 -> b tau+ tau- -> b e+- mu-+. The...

170. Naturalness in the scalar sector of NMSSM

Marco Farina (C)

07/05/2013, 17:00

parallel talk

It has been shown that in lambda-susy (i.e. NMSSM with low tb and order unit singlet-Higgs coupling) the fine tuning of the electroweak sector due to stops is minimized. However in order to obtain the correct value of the Higgs mass a non negligible singlet-Higgs mixing is required. Employing a fit of the recent Higgs data collected at LHC and Tevatron we obtain bounds on the mixing and...

21. The Scale-Invariant NMSSM and the 126 GeV Higgs Boson

Michael A. Schmidt (The University of Melbourne)

07/05/2013, 17:15

parallel talk

The recent LHC discovery of a Higgs-like resonance at 126 GeV suggests that the minimal supersymmetric standard model must be modified in order to preserve naturalness. A simple extension is to include a singlet superfield and consider the scale-invariant NMSSM, whose renormalizable superpotential contains no dimensionful parameters. This extension not only solves the \mu-problem, but can...

149. Radiative Natural SUSY

Peisi Huang (University of Wisconsin (US))

07/05/2013, 17:30

parallel talk

Models of natural supersymmetry seek to solve the little hierarchy problem by positing a spectrum of light higgsinos <~ 200-300 GeV and light top squarks <~ 600 GeV along with very heavy squarks and TeV-scale gluinos. Such models have low electroweak fine-tuning and satisfy the LHC constraints. However, in the context of the MSSM, they predict too low a value of m(h), are frequently in...

110. Revisiting mGMSB in light of a 125 GeV Higgs

Muhammad Ajaib (University of Delaware)

07/05/2013, 17:45

parallel talk

We explore the implications of a 124-126 GeV CP-even Higgs boson on the fundamental parameter space and sparticle spectroscopy of the minimal gauge mediated supersymmetry breaking (mGMSB) scenario. The above mass for the Higgs boson yields stringent lower bounds on the sparticle masses in this class of models. The lightest neutralino and stau masses lie close to 1.5 TeV and 800 GeV...

174. Non-Universal Gaugino Masses and Natural Supersymmetry

fariha nasir (U)

07/05/2013, 18:00

parallel talk

We demonstrate that natural supersymmetry is readily realized in the framework of SU(4)_c \times SU(2)_L \times SU(2)_R with non-universal gaugino masses. Focusing on ameliorating the little hierarchy problem, we explore the parameter space of this model which yields small fine-tuning measuring parameters (natural supersymmetry) at the electroweak scale (\Delta_{EW}) as well as at high scale...

183. Higgs Boson Mass from t-b-tau Yukawa Unification

Cem Salih Un (University of Delaware)

07/05/2013, 18:15

parallel talk

We revisit a class of supersymmetric SO(10) models with t-b-tau Yukawa coupling unication condition, with emphasis on the prediction of the Higgs mass. We discuss qualitative features in this model that lead to a Higgs mass prediction close to 125 GeV.