782 citations · 3.3k across the 58 of their papers we have counts for
39 papers · 1 filter
Baryogenesis and dark matter freeze-in from Higgs interactions
Avery Allen, John Brennan Halcomb, Zoe Kane +4
We present a model of freeze-in dark matter (DM) and baryogenesis in which the new particles are a TeV-scale electroweak-doublet vector-like fermion (VLF) and two gauge-singlet Maj…
Long-lived particles: theory and experimental probes
Laura Jeanty, Brian Shuve
Long-lived particles (LLPs) are particles that are stable or that live long enough for their decays to be experimentally distinguishable in time or position from their production p…
Oscillation Baryogenesis via Ultraviolet Dark Matter Freeze-In
Tian Dong, Conor M. Floyd, Antonia Hekster +3
We investigate baryogenesis from dark matter oscillations in the ultraviolet freeze-in regime. We find that the mechanism can simultaneously accommodate the observed abundances of…
Closing in on singly charged scalars
Snehadri Das, Will Howe, Brian Shuve +2
We investigate current experimental constraints and future search prospects for a hypothetical spin-zero particle that carries unit electric charge: a singly charged scalar (SCS).…
Electroweak Axion Portal to Dark Matter
Stephanie Allen, Albany Blackburn, Oswaldo Cardenas +3
Axion-like particles (ALPs) are good candidates for mediators to the dark sector. We explore scenarios in which an ALP mediates interactions between dark matter and electroweak gau…
ULYSSES, Universal LeptogeneSiS Equation Solver: version 2
Alessandro Granelli, Christopher Leslie, Yuber F. Perez-Gonzalez +4
ULYSSES is a Python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. In this release, the new features include c…
Opportunities for theory studies with public collider data: Snowmass 2021
Matt Bellis, Brian Shuve, Anna Barth +1
Over the last 20+ years, experimentalists have presented tantalizing hints of physics beyond the standard model, but nothing definitive. With the wealth of data from experiments, i…
New Ideas in Baryogenesis: A Snowmass White Paper
Gilly Elor, Julia Harz, Seyda Ipek +21
The Standard Model of Particle Physics cannot explain the observed baryon asymmetry of the Universe. This observation is a clear sign of new physics beyond the Standard Model. Ther…
Early-Universe Model Building
Pouya Asadi, Saurabh Bansal, Asher Berlin +37
Theoretical investigations into the evolution of the early universe are an essential part of particle physics that allow us to identify viable extensions to the Standard Model as w…
Freeze-in Leptogenesis via Dark-Matter Oscillations
Justin Berman, Brian Shuve, David Tucker-Smith
We study the cosmology and phenomenology of freeze-in baryogenesis via dark-matter oscillations, taking the dark matter to couple to Standard Model leptons. We investigate viable m…
New Physics Searches at Kaon and Hyperon Factories
Evgueni Goudzovski, Diego Redigolo, Kohsaku Tobioka +61
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths…
Hidden-Sector Neutrinos and Freeze-In Leptogenesis
Ina Flood, Rafael Porto, Jane Schlesinger +2
Sterile neutrinos at the GeV scale can resolve several outstanding problems of the Standard Model (SM), such as the source of neutrino masses and the origin of the baryon asymmetry…
Multi-track Displaced Vertices at B-Factories
Mason Acevedo, Albany Blackburn, Nikita Blinov +2
We propose a program at B-factories of inclusive, multi-track displaced vertex searches, which are expected to be low background and give excellent sensitivity to non-minimal hidde…
Baryogenesis and Dark Matter from Freeze-In
Brian Shuve, David Tucker-Smith
We propose a simple model in which the baryon asymmetry and dark matter are created via the decays and inverse decays of QCD-triplet scalars, at least one of which must be in the T…
Discovering True Muonium at LHCb
Xabier Cid Vidal, Philip Ilten, Jonathan Plews +2
We study the potential of the LHCb experiment to discover, for the first time, the true muonium bound state. We propose a search for the vector state, $\mathcal{T…
The CLIC Potential for New Physics
J. de Blas, R. Franceschini, F. Riva +100
The Compact Linear Collider (CLIC) is a mature option for the future of high energy physics. It combines the benefits of the clean environment of colliders with operation…
Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
David Curtin, Marco Drewes, Matthew McCullough +85
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of…
Rare Boson Decays to a Hidden Sector
Nikita Blinov, Eder Izaguirre, Brian Shuve
We demonstrate that rare decays of the Standard Model boson can be used to discover and characterize the nature of new hidden-sector particles. We propose new searches for thes…
Phase Transitions and Baryogenesis From Decays
Brian Shuve, Carlos Tamarit
We study scenarios in which the baryon asymmetry is generated from the decay of a particle whose mass originates from the spontaneous breakdown of a symmetry. This is realized in m…
A New Flavor of Searches for Axion-Like Particles
Eder Izaguirre, Tongyan Lin, Brian Shuve
We propose new searches for axion-like particles (ALPs) produced in flavor-changing neutral current (FCNC) processes. This proposal exploits the often-overlooked coupling of ALPs t…
Dark Sectors 2016 Workshop: Community Report
Jim Alexander, Marco Battaglieri, Bertrand Echenard +201
This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the…
Revision of the LHCb Limit on Majorana Neutrinos
Brian Shuve, Michael E. Peskin
We revisit the recent limits from LHCb on a Majorana neutrino N in the mass range 250 - 5000 MeV. These limits are among the best currently available, and they will be improved soo…
Illuminating New Electroweak States at Hadron Colliders
Ahmed Ismail, Eder Izaguirre, Brian Shuve
In this paper, we propose a novel powerful strategy to perform searches for new electroweak states. Uncolored electroweak states appear in generic extensions of the Standard Model…
Shedding Light on Neutrino Masses with Dark Forces
Brian Batell, Maxim Pospelov, Brian Shuve
Heavy right-handed neutrinos (RHNs) provide the simplest explanation for the origin of light neutrino masses and mixings. If the RHN masses are at or below the weak scale, direct e…