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19912026
Showing 2021 · hep-phShow all

19 papers · 2 filters

hep-ph2021★ 12 cited

Loopy Determinations of and

Wolfgang Altmannshofer, Nathan Lewis

We use loop induced processes like meson oscillations and rare b hadron decays to determine the absolute values of the CKM matrix elements and and compare our…

hep-ph2021★ 27 cited

Exotic Higgs Decays

Maria Cepeda, Stefania Gori, Verena Martinez Outschoorn +1

Exotic decays of the Standard Model-like Higgs boson into beyond-the-Standard Model particles are predicted in a wide range of well-motivated theories. The enormous samples of Higg…

hep-ph2021

Low Energy Effective Theory for Axion Strings

Michael Dine

We consider aspects of the low energy description of global cosmic strings. In the non-relativistic limit, we study the extent to which these are described by the combination of th…

hep-ph2021★ 7 cited

Dark Matter Freeze-In with a Heavy Mediator: Beyond the EFT Approach

Evan Frangipane, Stefania Gori, Bibhushan Shakya

We study dark matter freeze-in scenarios where the mass of the mediator particle that couples dark matter to the Standard Model is larger than the reheat temperature, TRH, in the e…

hep-ph2021★ 28 cited

Gravitational Baryogenesis and Dark Matter from Light Black Holes

Nolan Smyth, Lillian Santos-Olmsted, Stefano Profumo

We study a scenario in which the baryon asymmetry is created through Hawking radiation from primordial black holes via a dynamically-generated chemical potential. This mechanism ca…

hep-ph2021★ 50 cited

Publishing statistical models: Getting the most out of particle physics experiments

Kyle Cranmer, Sabine Kraml, Harrison B. Prosper +30

The statistical models used to derive the results of experimental analyses are of incredible scientific value and are essential information for analysis preservation and reuse. In…

hep-ph2021★ 4 cited

Directional Detection of Light Dark Matter in Superconductors

Yonit Hochberg, Eric David Kramer, Noah Kurinsky +1

Superconducting detectors have been proposed as outstanding targets for the direct detection of light dark matter scattering at masses as low as a keV. We study the prospects for d…

hep-ph2021★ 27 cited

Sensitivity to BSM effects in the Higgs spectrum within SMEFT

Marco Battaglia, Massimiliano Grazzini, Michael Spira +1

The study of Higgs boson production at large transverse momentum is one of the new frontiers for the LHC Higgs physics programme. This paper considers boosted Higgs production in t…

hep-ph2021★ 5 cited

Do Minimal Parity Solutions to the Strong CP Problem Work?

Jordy de Vries, Patrick Draper, Hiren H. Patel

One class of solutions to the strong CP problem relies on generalized parity symmetries. A minimal model of this type, constructed by Babu and Mohapatra and based on a softly broke…

hep-ph2021★ 5 cited

A Supersymmetric Flavor Clockwork

Wolfgang Altmannshofer, Sri Aditya Gadam

Clockwork models can explain the flavor hierarchies in the Standard Model quark and lepton spectrum. We construct supersymmetric versions of such flavor clockwork models. The zero…

hep-ph2021★ 21 cited

Neutron Star Quantum Death by Small Black Holes

Pierce Giffin, John Lloyd, Samuel D. McDermott +1

Neutron stars can be destroyed by black holes at their center accreting material and eventually swallowing the entire star. Here we note that the accretion model adopted in the lit…

hep-ph2021★ 25 cited

Explaining with Multi-TeV Sleptons

Wolfgang Altmannshofer, Sri Aditya Gadam, Stefania Gori +1

We present a supersymmetric extension of the Standard Model in which the new physics contributions to the anomalous magnetic moment of the muon can be more than an order of magnitu…

hep-ph2021★ 25 cited

Precision Gamma-Ray Constraints for Sub-GeV Dark Matter Models

Adam Coogan, Logan Morrison, Stefano Profumo

The indirect detection of dark matter particles with mass below the GeV scale has recently received significant attention. Future space-borne gamma-ray telescopes, including All-Sk…

hep-ph2021★ 32 cited

New Physics in Rare B Decays after Moriond 2021

Wolfgang Altmannshofer, Peter Stangl

The anomalies in rare decays endure. We present results of an updated global analysis that takes into account the latest experimental input -- in particular the recent results…

hep-ph2021★ 2 cited

Sterile Neutrino Dark Matter from Generalized -Symmetric Early-Universe Cosmologies

Adam Duran, Logan Morrison, Stefano Profumo

We generalize gravitational particle production in a radiation-dominated -symmetric universe to non-standard, but also -symmetric early universe cosmologies. We calculate…

hep-ph2021★ 289 cited

Feebly-Interacting Particles:FIPs 2020 Workshop Report

Prateek Agrawal, Martin Bauer, James Beacham +43

With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader part…

hep-ph2021★ 8 cited

Exceptional regions of the 2HDM parameter space

Howard E. Haber, Joao P. Silva

The exceptional region of the parameter space (ERPS) of the two Higgs doublet model (2HDM) is defined to be the parameter regime where the scalar potential takes on a very special…

hep-ph2021★ 98 cited

The Cosmic Axion Background

Jeff A. Dror, Hitoshi Murayama, Nicholas L. Rodd

Existing searches for cosmic axions relics have relied heavily on the axion being non-relativistic and making up dark matter. However, light axions can be copiously produced in the…

hep-ph2021★ 98 cited

Determining Dark Matter-Electron Scattering Rates from the Dielectric Function

Yonit Hochberg, Yonatan Kahn, Noah Kurinsky +3

We show that the rate for dark matter-electron scattering in an arbitrary material is determined by an experimentally measurable quantity, the complex dielectric function, for any…