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19912026
Showing 2015 · hep-phShow all

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hep-ph2015★ 17 cited

Light Stop Mass Limits from Higgs Rate Measurements in the MSSM: Is MSSM Electroweak Baryogenesis Still Alive After All?

Stefan Liebler, Stefano Profumo, Tim Stefaniak

We investigate the implications of the Higgs rate measurements from Run 1 of the LHC for the mass of the light scalar top partner (stop) in the Minimal Supersymmetric Standard Mode…

hep-ph2015★ 165 cited

Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: GeV

Jérémy Bernon, John F. Gunion, Howard E. Haber +2

In the alignment limit of a multi-doublet Higgs sector, one of the Higgs mass eigenstates aligns in field space with the direction of the scalar field vacuum expectation values, an…

hep-ph2015★ 6 cited

Constraints on Light Dark Matter from Single-Photon Decays of Heavy Quarkonium

Nicolas Fernandez, Ilsoo Seong, Patrick Stengel

We investigate constraints on the interactions of light dark matter with Standard Model quarks in a framework with effective contact operators mediating the decay of heavy flavor b…

hep-ph2015★ 91 cited

On the Alignment Limit of the NMSSM Higgs Sector

Marcela Carena, Howard E. Haber, Ian Low +2

The Next-to-Minimal Supersymmetric extension of the Standard Model (NMSSM) with a Higgs boson of mass 125 GeV can be compatible with stop masses of order of the electroweak scale,…

hep-ph2015★ 27 cited

Strong CP and SUZ

Abdelhamid Albaid, Michael Dine, Patrick Draper

Solutions to the strong CP problem typically introduce new scales associated with the spontaneous breaking of symmetries. Absent any anthropic argument for small , these sca…

hep-ph2015★ 124 cited

Evidence of sub-nucleonic degrees of freedom in J/ photoproduction in ultraperipheral collisions at the CERN Large Hadron Collider

E. Andrade-II, I. González, A. Deppman +1

We present calculations for the incoherent photoproduction of J/ vector mesons in ultra-peripheral heavy ion collisions (UPC) in terms of hadronic interactions. This study was c…

hep-ph2015★ 95 cited

Killing the cMSSM softly

Philip Bechtle, Jose Eliel Camargo-Molina, Klaus Desch +9

We investigate the constrained Minimal Supersymmetric Standard Model (cMSSM) in the light of constraining experimental and observational data from precision measurements, astrophys…

hep-ph2015★ 113 cited

Dark Matter and Global Symmetries

Yann Mambrini, Stefano Profumo, Farinaldo S. Queiroz

General considerations in general relativity and quantum mechanics are known to potentially rule out continuous global symmetries in the context of any consistent theory of quantum…

hep-ph2015★ 306 cited

Applying Exclusion Likelihoods from LHC Searches to Extended Higgs Sectors

Philip Bechtle, Sven Heinemeyer, Oscar Stal +2

LHC searches for non-standard Higgs bosons decaying into tau lepton pairs constitute a sensitive experimental probe for physics beyond the Standard Model (BSM), such as Supersymmet…

hep-ph2015★ 2 cited

Flavour, Electroweak Symmetry Breaking and Dark Matter: state of the art and future prospects

Giulia Ricciardi, Alexandre Arbey, Enrico Bertuzzo +12

With the discovery of the Higgs boson the Standard Model has become a complete and comprehensive theory, which has been verified with unparalleled precision and in principle might…

hep-ph2015★ 95 cited

New LHC Benchmarks for the CP-conserving Two-Higgs-Doublet Model

Howard E. Haber, Oscar Stal

We introduce a strategy to study the parameter space of the general, CP-conserving, two-Higgs-doublet Model (2HDM) with a softly broken Z_2-symmetry by means of a new "hybrid" basi…

hep-ph2015★ 165 cited

Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 1: GeV

Jérémy Bernon, John F. Gunion, Howard E. Haber +2

In the alignment limit of a multi-doublet Higgs sector, one of the Higgs mass eigenstates aligns with the direction of the scalar field vacuum expectation values, and its couplings…

hep-ph2015★ 18 cited

Dirac-Fermionic Dark Matter in Models

Alexandre Alves, Asher Berlin, Stefano Profumo +1

We study a number of models featuring a Dirac fermion dark matter particle. We perform a comprehensive analysis which includes the study of corrections to the muon magneti…

hep-ph2015★ 1 cited

Challenges for the Nelson-Barr Mechanism

Michael Dine, Patrick Draper

Solutions to strong CP based on chiral structure have been subject to the most careful scrutiny and critique. Basic theoretical issues include hierarchy and fine-tuning problems, q…

hep-ph2015★ 14 cited

Monojet Searches for MSSM Simplified Models

A. Arbey, M. Battaglia, F. Mahmoudi

We explore the implications of monojet searches at hadron colliders in the minimal supersymmetric extension of the Standard Model (MSSM). To quantify the impact of monojet searches…

hep-ph2015★ 45 cited

Preserving the validity of the Two-Higgs Doublet Model up to the Planck scale

P. M. Ferreira, Howard E. Haber, Edward Santos

We examine the constraints on the two Higgs doublet model (2HDM) due to the stability of the scalar potential and absence of Landau poles at energy scales below the Planck scale. W…

hep-ph2015★ 9 cited

The Higgs boson, Supersymmetry and Dark Matter: Relations and Perspectives

Alexandre Arbey, Marco Battaglia, Farvah Mahmoudi

The discovery of a light Higgs boson at the LHC opens a broad program of studies and measurements to understand the role of this particle in connection with New Physics and Cosmolo…

hep-ph2015★ 85 cited

The Electroweak Phase Transition in the Inert Doublet Model

Nikita Blinov, Stefano Profumo, Tim Stefaniak

We study the strength of a first-order electroweak phase transition in the Inert Doublet Model (IDM), where particle dark matter (DM) is comprised of the lightest neutral inert Hig…

hep-ph2015★ 3 cited

Monochromatic Gamma Rays from Dark Matter Annihilation to Leptons

Adam Coogan, Stefano Profumo, William Shepherd

We investigate the relation between the annihilation of dark matter (DM) particles into lepton pairs and into 2-body final states including one or two photons. We parametrize the D…

hep-ph2015★ 161 cited

Physics at the e+ e- Linear Collider

G. Moortgat-Pick, H. Baer, M. Battaglia +60

A comprehensive review of physics at an e+e- Linear Collider in the energy range of sqrt{s}=92 GeV--3 TeV is presented in view of recent and expected LHC results, experiments from…

hep-ph2015★ 11 cited

Towards an Understanding of the Correlations in Jet Substructure

D. Adams, A. Arce, L. Asquith +83

Over the past decade, a large number of jet substructure observables have been proposed in the literature, and explored at the LHC experiments. Such observables attempt to utilize…

hep-ph2015★ 33 cited

Interpreting the CMS Excess with a Leptoquark Model

Ben Allanach, Alexandre Alves, Farinaldo S. Queiroz +2

Motivated by excesses in and channels observed by the CMS collaboration, in 8 TeV LHC data, a model of lepto-quarks with mass around 500 GeV was proposed in the lite…

hep-ph2015★ 119 cited

Dark Matter Complementarity and the Z Portal

Alexandre Alves, Asher Berlin, Stefano Profumo +1

Z' gauge bosons arise in many particle physics models as mediators between the dark and visible sectors. We exploit dark matter complementarity and derive stringent and robust coll…

hep-ph2015★ 329 cited

Status of the Higgs Singlet Extension of the Standard Model after LHC Run 1

Tania Robens, Tim Stefaniak

We discuss the current status of theoretical and experimental constraints on the real Higgs singlet extension of the Standard Model. For the second neutral (non-standard) Higgs bos…