85 citations · 419 across the 24 of their papers we have counts for
25 papers
Fractionally Charged Particles at the Energy Frontier: The SM Gauge Group and One-Form Global Symmetry
Seth Koren, Adam Martin
The observed Standard Model is consistent with the existence of vector-like species with electric charge a multiple of . The discovery of a fractionally charged particle would…
Topportunities at the LHC: Rare Top Decays with Light Singlets
Henning Bahl, Seth Koren, Lian-Tao Wang
The discovery of the top quark, the most massive elementary particle yet known, has given us a distinct window into investigating the physics of the Standard Model and Beyond. With…
Higher Flavor Symmetries in the Standard Model
Clay Cordova, Seth Koren
We initiate the study of the generalized global flavor symmetries of the Standard Model. The presence of nonzero triangle diagrams between the flavor currents and the $U(1…
Neutrino Masses from Generalized Symmetry Breaking
Clay Cordova, Sungwoo Hong, Seth Koren +1
We explore generalized global symmetries in theories of physics beyond the Standard Model. Theories of bosons generically contain 'non-invertible' chiral symmetries, whose pre…
Asymmetric Reheating via Inverse Symmetry Breaking
Aurora Ireland, Seth Koren
Asymmetric reheating is a generic requirement for models of dark sectors with light species, but its implementation is usually in tension with unique phenomenologies otherwise poss…
Cosmological Lithium Solution from Discrete Gauged Baryon Minus Lepton Number
Seth Koren
The cosmological lithium problem -- that theory predicts a primordial abundance far higher than the observed value -- has resisted decades of attempts by cosmologists, nuclear phys…
A Note on Proton Stability in the Standard Model
Seth Koren
In this short note we describe the symmetry responsible for absolute, nonperturbative proton stability in the Standard Model. The SM with colors and generations has a…
The Muon Smasher's Guide
Hind Al Ali, Nima Arkani-Hamed, Ian Banta +31
We lay out a comprehensive physics case for a future high-energy muon collider, exploring a range of collision energies (from 1 to 100 TeV) and luminosities. We highlight the advan…
H Marks the Spot: Searching for Exotic Production of Higgs + X to Map Out New Physics
Seth Koren, Umut Öktem
We propose leveraging our proficiency for detecting Higgs resonances by using the Higgs as a tagging object for new heavy physics. In particular, we argue that searches for exotic…
The Hydrogen Mixing Portal, Its Origins, and Its Cosmological Effects
Lucas Johns, Seth Koren
Hydrogen oscillation into a dark-sector state has recently been proposed as a novel mechanism through which hydrogen can be cooled during the dark ages -- without direct coupl…
Hydrogen Mixing as a Novel Mechanism for Colder Baryons in 21 cm Cosmology
Lucas Johns, Seth Koren
The anomalous 21 cm absorption feature reported by EDGES has galvanized the study of scenarios in which dark matter (DM) siphons off thermal energy from the Standard Model (SM) gas…
The Hierarchy Problem: From the Fundamentals to the Frontiers
Seth Koren
We begin this thesis with an extensive pedagogical introduction aimed at clarifying the foundations of the hierarchy problem. After introducing effective field theory, we discuss r…
Supersoft Stops
Timothy Cohen, Nathaniel Craig, Seth Koren +2
In a supersymmetric (SUSY) theory, the IR-contributions to the Higgs mass are calculable below the mediation scale in terms of the IR field content and parameters.…
IR Dynamics from UV Divergences: UV/IR Mixing, NCFT, and the Hierarchy Problem
Nathaniel Craig, Seth Koren
The persistence of the hierarchy problem points to a violation of effective field theory expectations. A compelling possibility is that this results from a physical breakdown of EF…
Freeze-Twin Dark Matter
Seth Koren, Robert McGehee
The mirror twin Higgs (MTH) addresses the little hierarchy problem by relating every Standard Model (SM) particle to a twin copy, but is in tension with cosmological bounds on ligh…
Exploring strong-field deviations from general relativity via gravitational waves
Steven B. Giddings, Seth Koren, Gabriel Treviño
Two new observational windows have been opened to strong gravitational physics: gravitational waves, and very long baseline interferometry. This suggests observational searches for…
The Weak Scale from Weak Gravity
Nathaniel Craig, Isabel Garcia Garcia, Seth Koren
We explore the prospects for bounding the weak scale using the weak gravity conjecture (WGC), addressing the hierarchy problem by violating the expectations of effective field theo…
Constructing Coulomb Branch Superamplitudes
Aidan Herderschee, Seth Koren, Timothy Trott
We study scattering amplitudes of massive BPS states on the Coulomb branch of super-Yang-Mills, utilising a little group covariant on-shell superspace for mass…
Massive On-Shell Supersymmetric Scattering Amplitudes
Aidan Herderschee, Seth Koren, Timothy Trott
We introduce a manifestly little group covariant on-shell superspace for massive particles in four dimensions using the massive spinor helicity formalism. This enables us to constr…
Long Live the Higgs Factory: Higgs Decays to Long-Lived Particles at Future Lepton Colliders
Samuel Alipour-Fard, Nathaniel Craig, Minyuan Jiang +1
We initiate the study of exotic Higgs decays to long-lived particles (LLPs) at proposed future lepton colliders, focusing on scenarios with displaced hadronic final states. Our ana…
The second Higgs at the lifetime frontier
Samuel Alipour-fard, Nathaniel Craig, Stefania Gori +2
We assess the current coverage and the future discovery potential of LHC searches for heavy Higgs bosons decaying into long-lived particles (LLPs), focusing primarily on the produc…
Discrete Gauge Symmetries and the Weak Gravity Conjecture
Nathaniel Craig, Isabel Garcia Garcia, Seth Koren
In theories with discrete Abelian gauge groups, requiring that black holes be able to lose their charge as they evaporate leads to an upper bound on the product of a charged partic…
Cosmological Signals of a Mirror Twin Higgs
Nathaniel Craig, Seth Koren, Timothy Trott
We investigate the cosmology of the minimal model of neutral naturalness, the mirror Twin Higgs. The softly-broken mirror symmetry relating the Standard Model to its twin counterpa…
The Low-Mass Astrometric Binary LSR1610-0040
Seth C. Koren, Cullen H. Blake, Conard C. Dahn +1
Even though it was discovered more than a decade ago, LSR1610-0040 remains an enigma. This object has a peculiar spectrum that exhibits some features typically found in L subdwarfs…