68 citations · 174 across the 8 of their papers we have counts for
8 papers
Searching for exotic scalars at fusion reactors
Chaja Baruch, Patrick J. Fitzpatrick, Tony Menzo +3
The energy created in deuterium-tritium fusion reactors originates from a high-intensity neutron flux interacting with the reactor's inner walls. The neutron flux can also be used…
Dark Matter Through the Axion-Gluon Portal
Patrick J. Fitzpatrick, Yonit Hochberg, Eric Kuflik +2
Axion-like-particles are a well-motivated extension of the Standard Model that can mediate interactions between the dark matter and ordinary matter. Here we consider an axion porta…
New Thermal Relic Targets for Inelastic Vector-Portal Dark Matter
Patrick J. Fitzpatrick, Hongwan Liu, Tracy R. Slatyer +1
We examine the vector-portal inelastic dark matter (DM) model with DM mass and dark photon mass , in the `forbidden dark matter' regime where $1 \lesssim m_{A'}/m_χ\l…
New Pathways to the Relic Abundance of Vector-Portal Dark Matter
Patrick J. Fitzpatrick, Hongwan Liu, Tracy R. Slatyer +1
We fully explore the thermal freezeout histories of a vector-portal dark matter model, in the region of parameter space in which the ratio of masses of the dark photon …
A Bumpy Start to a Smooth Ride: Onset of Inflation amid Backreaction from Inhomogeneities
Jolyon K. Bloomfield, Patrick Fitzpatrick, Kiriakos Hilbert +1
We analyze the onset of inflation for a simple single-field model when the system begins with significant inhomogeneities on length-scales shorter than the initial Hubble radius. W…
Capture and Decay of Electroweak WIMPonium
Pouya Asadi, Matthew Baumgart, Patrick J. Fitzpatrick +2
The spectrum of Weakly-Interacting-Massive-Particle (WIMP) dark matter generically possesses bound states when the WIMP mass becomes sufficiently large relative to the mass of the…
Early-Type Galaxy Star Formation Histories in Different Environments
Patrick J. Fitzpatrick, Genevieve J. Graves
We use very high-S/N stacked spectra of 29,000 nearby quiescent early-type galaxies (ETGs) from the Sloan Digital Sky Survey (SDSS) to investigate variations in their star fo…
Dispersion in Neptune's Zonal Wind Velocities from NIR Keck AO Observations in July 2009
Patrick J. Fitzpatrick, Imke de Pater, Statia Luszcz-Cook +2
We report observations of Neptune made in H-(1.4-1.8 μm) and K'-(2.0-2.4 μm) bands on 14 and 16 July 2009 from the 10-m W.M. Keck II Telescope using the near-infrared camera NIRC2…