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19912026
Showing 2011 · hep-phShow all

16 papers · 2 filters

hep-ph2011★ 283 cited

Implications of a 125 GeV Higgs for the MSSM and Low-Scale SUSY Breaking

Patrick Draper, Patrick Meade, Matthew Reece +1

Recently, the ATLAS and CMS collaborations have announced exciting hints for a Standard Model-like Higgs boson at a mass of approximately 125 GeV. In this paper, we explore the pot…

hep-ph2011★ 63 cited

Measuring the Invisible Higgs Width at the 7 and 8 TeV LHC

Yang Bai, Patrick Draper, Jessie Shelton

The LHC is well on track toward the discovery or exclusion of a light Standard Model (SM)-like Higgs boson. Such a Higgs has a very small SM width and can easily have large branchi…

hep-ph2011★ 107 cited

Constraints on the MSSM from the Higgs Sector - A pMSSM Study of Higgs Searches, Bs -> mu+ mu- and Dark Matter Direct Detection

A. Arbey, M. Battaglia, F. Mahmoudi

We discuss the constraints on Supersymmetry in the Higgs sector arising from LHC searches, rare B decays and dark matter direct detection experiments. We show that constraints deri…

hep-ph2011★ 90 cited

Implications of LHC Searches on SUSY Particle Spectra: The pMSSM Parameter Space with Neutralino Dark Matter

A. Arbey, M. Battaglia, F. Mahmoudi

We study the implications of LHC searches on SUSY particle spectra using flat scans of the 19-parameter pMSSM phase space. We apply constraints from flavour physics, g_mu-2, dark m…

hep-ph2011★ 502 cited

CosmoTransitions: Computing Cosmological Phase Transition Temperatures and Bubble Profiles with Multiple Fields

Carroll L. Wainwright

I present a numerical package (CosmoTransitions) for analyzing finite-temperature cosmological phase transitions driven by single or multiple scalar fields. The package analyzes th…

hep-ph2011★ 73 cited

Regenerating a Symmetry in Asymmetric Dark Matter

Matthew R. Buckley, Stefano Profumo

Asymmetric dark matter theories generically allow for mass terms that lead to particle-antiparticle mixing. Over the age of the Universe, dark matter can thus oscillate from a pure…

hep-ph2011★ 19 cited

Studies in Small Field Inflation

Michael Dine, Lawrence Pack

We explore some issues in slow roll inflation in situations where field excursions are small compared to . We argue that for small field inflation, minimizing fine tuning requ…

hep-ph2011★ 17 cited

Closing in on Supersymmetric Electroweak Baryogenesis with Dark Matter Searches and the Large Hadron Collider

Jonathan Kozaczuk, Stefano Profumo

We study the impact of recent direct and indirect searches for particle dark matter on supersymmetric models with resonant neutralino- or chargino-driven electroweak baryogenesis (…

hep-ph2011★ 18 cited

The 7 TeV LHC Reach for MSSM Higgs Bosons

Marcela Carena, Patrick Draper, Tao Liu +1

The search for the Higgs boson is entering a decisive phase. The Large Hadron Collider experiments have collected more than 1 fb of data and are now capable of efficiently p…

hep-ph2011★ 29 cited

The Quest for Supersymmetry: Early LHC Results versus Direct and Indirect Neutralino Dark Matter Searches

Stefano Profumo

We compare the first results on searches for supersymmetry with the Large Hadron Collider (LHC) to the current and near-term performance of experiments sensitive to neutralino dark…

hep-ph2011★ 5 cited

Constraints on Direct Gauge Mediation Models with Complex Representations

Kentaro Hanaki, Masahiro Ibe, Yutaka Ookouchi +1

We discuss constraints from cosmology on the models with direct gauge mediation based on the ISS supersymmetry breaking models. It is a generic feature that the ISS models possess…

hep-ph2011★ 17 cited

Cosmic Ray-Dark Matter Scattering: a New Signature of (Asymmetric) Dark Matter in the Gamma Ray Sky

Stefano Profumo, Lorenzo Ubaldi

We consider the process of scattering of Galactic cosmic-ray electrons and protons off of dark matter with the radiation of a final-state photon. This process provides a novel way…

hep-ph2011★ 70 cited

Direct and Indirect Singlet Scalar Dark Matter Detection in the Lepton-Specific two-Higgs-doublet Model

M. S. Boucenna, S. Profumo

A recent study of gamma-ray data from the Galactic Center motivates the investigation of light (~7-10 GeV) particle dark matter models featuring tau lepton pairs as dominant annihi…

hep-ph2011★ 68 cited

Gravity Waves from a Cosmological Phase Transition: Gauge Artifacts and Daisy Resummations

Carroll Wainwright, Stefano Profumo, Michael J. Ramsey-Musolf

The finite-temperature effective potential customarily employed to describe the physics of cosmological phase transitions often relies on specific gauge choices, and is manifestly…

hep-ph2011★ 8 cited

Constraining Selectron LSP Scenarios with Tevatron Trilepton Searches

H. K. Dreiner, S. Grab, T. Stefaniak

The Tevatron collaborations have searched for associated production of charginos and neutralinos via trilepton final states. No events above the Standard Model prediction were obse…

hep-ph2011★ 23 cited

Measuring a Light Neutralino Mass at the ILC: Testing the MSSM Neutralino Cold Dark Matter Model

John A. Conley, Herbert K. Dreiner, Peter Wienemann

The LEP experiments give a lower bound on the neutralino mass of about 46 GeV which, however, relies on a supersymmetric grand unification relation. Dropping this assumption, the e…