17 citations · 20 across the 10 of their papers we have counts for
10 papers
A Simple Dark Matter Model to Explain the LZ Event and Galactic Center Excess
Caleb Gemmell, Dan Hooper, Gordan Krnjaic
We propose that the dark matter (DM) is a pseudo-Dirac fermion with a mass of approximately GeV that couples inelastically to the Standard Model through a hadrophilic spin…
Re-examining the sensitivity of JWST to decaying axion dark matter
Caleb Gemmell, Christopher Dessert, Andrea Caputo +1
An eV-scale QCD axion comprising the observed dark matter (DM) abundance is expected to generate a photon line at infrared energies that would be observable or near-observable in d…
Strongest constraints on dark acoustic oscillations from the Lyman-alpha forest
Zhihan Yuan, Caleb Gemmell, Keir K. Rogers +4
We set the first constraints on a small-scale dark acoustic oscillation (DAO) in the linear matter power spectrum arising from dark sector interactions, with a full forward model o…
Dark Matter, Baryon Number, and Cosmic-Ray Antinuclei
Caleb Gemmell, Dan Hooper, Seth Koren +1
Antideuterons and antihelium nuclei in the cosmic-ray spectrum have long been considered a smoking gun signature of dark matter annihilation, making the tentative observation of se…
Enhanced Cosmic-Ray Antinuclei Fluxes with Dark Matter Annihilation into SUEPs
Mattia Di Mauro, Caleb Gemmell, Austin Batz +4
Standard-Model (SM) hadronic parton showers initiated by secondary cosmic-ray production or dark matter (DM) annihilations robustly predict very low antinuclei yields and a strong…
Dissipative Dark Substructure: The Consequences of Atomic Dark Matter on Milky Way Analog Subhalos
Caleb Gemmell, Sandip Roy, Xuejian Shen +4
Using cosmological hydrodynamical zoom-in simulations, we explore the properties of subhalos in Milky Way analogs that contain a sub-component of Atomic Dark Matter (ADM). ADM diff…
Dark Sector Glueballs at the LHC
Austin Batz, Timothy Cohen, David Curtin +2
We study confining dark sectors where the lightest hadrons are glueballs. Such models can provide viable dark matter candidates and appear in some neutral naturalness scenarios. In…
Indirect Detection of Dark Matter Annihilating into Dark Glueballs
David Curtin, Caleb Gemmell
We examine indirect detection of dark matter that annihilates into dark glueballs, which in turn decay into the Standard Model via a range of portals. This arises if the dark matte…
Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report
Guillaume Albouy, Jared Barron, Hugues Beauchesne +51
In this work, we consider the case of a strongly coupled dark/hidden sector, which extends the Standard Model (SM) by adding an additional non-Abelian gauge group. These extensions…
Simulating Glueball Production in QCD
David Curtin, Caleb Gemmell, Christopher B. Verhaaren
In an gauge theory with zero light quark flavours , the only hadronic states that form below the confinement scale are composite gluon states called glueballs. T…