Sean Tulin
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View article: Baryonic dark forces in electron-beam fixed-target experiments
Baryonic dark forces in electron-beam fixed-target experiments Open
A bstract New GeV-scale dark forces coupling predominantly to quarks offer novel signatures that can be produced directly and searched for at high-luminosity colliders. We compute the photon-proton and electron-proton cross sections for pr…
View article: Baryonic dark forces in electron-beam fixed-target experiments
Baryonic dark forces in electron-beam fixed-target experiments Open
New GeV-scale dark forces coupling predominantly to quarks offer novel signatures that can be produced directly and searched for at high-luminosity colliders. We compute the photon-proton and electron-proton cross sections for producing a …
View article: Working Group Report: Baryon Number Violation
Working Group Report: Baryon Number Violation Open
This report, prepared for the Community Planning Study - Snowmass 2013 - summarizes the theoretical motivations and the experimental efforts to search for baryon number violation, focussing on nucleon decay and neutron-antineutron oscillat…
View article: Semiclassical regime for dark matter self-interactions
Semiclassical regime for dark matter self-interactions Open
Many particle physics models for dark matter self-interactions—motivated to address long-standing challenges to the collisionless cold dark matter paradigm—fall within the semiclassical regime, with interaction potentials that are long ran…
View article: Precision tests of fundamental physics with $\eta$ and $\eta^\prime$ mesons
Precision tests of fundamental physics with $\eta$ and $\eta^\prime$ mesons Open
Decays of the neutral and long-lived $\eta$ and $\eta'$ mesons provide a unique, flavor-conserving laboratory to test low-energy Quantum Chromodynamics and search for new physics beyond the Standard Model. They have drawn world-wide attent…
View article: Canada and the SKA from 2020-2030
Canada and the SKA from 2020-2030 Open
This white paper submitted for the 2020 Canadian Long-Range Planning process (LRP2020) presents the prospects for Canada and the Square Kilometre Array (SKA) from 2020-2030, focussing on the first phase of the project (SKA1) scheduled to b…
View article: The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons
The diverse density profiles of galaxy clusters with self-interacting dark matter plus baryons Open
We present the first simulated galaxy clusters (M200 > 1014 M⊙) with both self-interacting dark matter (SIDM) and baryonic physics. They exhibit a greater diversity in both dark matter and stellar density profiles than their counterpart…
View article: Lyman-$\\alpha$ forest constraints on interacting dark sectors
Lyman-$\\alpha$ forest constraints on interacting dark sectors Open
The Lyman-$\\alpha$ forest is a valuable probe of dark matter models featuring a scale-dependent suppression of the power spectrum as compared to $\\Lambda$CDM. In this work, we present a new estimator of the Lyman-$\\alpha$ flux power spe…
View article: dark matter from one-flavor SU(2) gauge theory
dark matter from one-flavor SU(2) gauge theory Open
SU(2) gauge theory with a single fermion in the fundamental representation is a minimal non-Abelian candidate for the dark matter sector, which is presently missing from the standard model. Having only a single flavor provides a natural me…
View article: Dark matter from one-flavor SU(2) gauge theory
Dark matter from one-flavor SU(2) gauge theory Open
SU(2) gauge theory with a single fermion in the fundamental representation is a minimal non-Abelian candidate for the dark matter sector, which is presently missing from the standard model. Having only a single flavor provides a natural me…
View article: A facility to search for hidden particles at the CERN SPS: the SHiP physics case
A facility to search for hidden particles at the CERN SPS: the SHiP physics case Open
This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (search for hidden particles) experiment is intended to hunt for new physics in the largely unexplored domain of very weakly interacting particles …
View article: Dark Matter Halos as Particle Colliders: Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters
Dark Matter Halos as Particle Colliders: Unified Solution to Small-Scale Structure Puzzles from Dwarfs to Clusters Open
Astrophysical observations spanning dwarf galaxies to galaxy clusters indicate that dark matter (DM) halos are less dense in their central regions compared to expectations from collisionless DM N-body simulations. Using detailed fits to DM…