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19932026
most citedObservational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

19.6k citations

Showing 2018 · hep-phShow all

12 papers · 2 filters

hep-ph2018★ 136 cited

Collider and Gravitational Wave Complementarity in Exploring the Singlet Extension of the Standard Model

Alexandre Alves, Tathagata Ghosh, Huai-Ke Guo +2

We present a dedicated complementarity study of gravitational wave and collider measurements of the simplest extension of the Higgs sector: the singlet scalar augmented Standard Mo…

hep-ph2018★ 49 cited

Foraging for dark matter in large volume liquid scintillator neutrino detectors with multiscatter events

Joseph Bramante, Benjamin Broerman, Jason Kumar +3

We show that dark matter with a per-nucleon scattering cross section could be discovered by liquid scintillator neutrino detectors like BOREXINO, SNO+…

hep-ph2018★ 10 cited

Cosmological Constraints on Unstable Particles: Numerical Bounds and Analytic Approximations

Keith R. Dienes, Jason Kumar, Patrick Stengel +1

Many extensions of the Standard Model predict large numbers of additional unstable particles whose decays in the early universe are tightly constrained by observational data. For e…

hep-ph2018★ 12 cited

Enhancing the discovery prospects for SUSY-like decays with a forgotten kinematic variable

Dipsikha Debnath, James S. Gainer, Can Kilic +3

The lack of a new physics signal thus far at the Large Hadron Collider motivates us to consider how to look for challenging final states, with large Standard Model backgrounds and…

hep-ph2018★ 37 cited

LHC luminosity and energy upgrades confront natural supersymmetry models

Howard Baer, Vernon Barger, James S. Gainer +3

The electroweak fine-tuning measure Delta(EW) allows for correlated SUSY soft terms as are expected in any ultra-violet complete theory. Requiring no less than 3% electroweak fine-…

hep-ph2018★ 64 cited

Resonant Di-Higgs Production at Gravitational Wave Benchmarks: A Collider Study using Machine Learning

Alexandre Alves, Tathagata Ghosh, Huai-Ke Guo +1

We perform a complementarity study of gravitational waves and colliders in the context of electroweak phase transitions choosing as our template the xSM model, which consists of th…

hep-ph2018★ 12 cited

Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks

Jason Kumar

We consider photon signals arising from the annihilation or decay of low-mass (sub-GeV) dark matter which couples dominantly to quarks. In this scenario, the branching fractions to…

hep-ph2018★ 7 cited

Adding Pseudo-Observables to the Four-Lepton Experimentalist's Toolbox

James S. Gainer, Martín González-Alonso, Admir Greljo +12

The "golden" channel, in which the newly-discovered Higgs boson decays to four leptons by means of intermediate vector bosons, is important for determining the properties of the Hi…

hep-ph2018★ 3 cited

Breaking flavor democracy with symmetric perturbations

Tathagata Ghosh, Jiajun Liao, Danny Marfatia +1

Flavor democracy broken in the fermion mass matrix by means of small perturbations can give rise to hierarchical fermion masses. We study the breaking of the s…

hep-ph2018★ 54 cited

Is natural higgsino-only dark matter excluded?

Howard Baer, Vernon Barger, Dibyashree Sengupta +1

The requirement of electroweak naturalness in supersymmetric (SUSY) models of particle physics necessitates light higgsinos not too far from the weak scale characterized by m(weak)…

hep-ph2018★ 27 cited

Phenomenology of the Higgs sector of a Dimension-7 Neutrino Mass Generation Mechanism

Tathagata Ghosh, Sudip Jana, S. Nandi

In this paper, we revisit the dimension-7 neutrino mass generation mechanism based on the addition of an isospin scalar quadruplet and two vector-like iso-triplet leptons to…

hep-ph2018★ 35 cited

Model-independent constraints on dark matter annihilation in dwarf spheroidal galaxies

Kimberly K. Boddy, Jason Kumar, Danny Marfatia +1

We present a general, model-independent formalism for determining bounds on the production of photons in dwarf spheroidal galaxies via dark matter annihilation, applicable to any s…