127 citations · 971 across the 44 of their papers we have counts for
35 papers · 1 filter
For Whom the Xenon Recoils: Magnetic Inelastic Dark Baryons
Pouya Asadi, Austin Batz, Patrick J. Fox +2
We develop a theory of a dark baryon dark matter candidate that interacts with nuclei dominantly through inelastic scattering mediated by a transition magnetic dipole operator. Mod…
KOFFEE: Kaon Observables at Future Fermilab Experimental Extensions
Cari Cesarotti, Samuel Homiller
The rare decays and are among the most precisely predicted flavor observables, enabling determinations of the CKM matrix and its CP-violating ph…
On the Run from the Dark Side of the Muon
Pouya Asadi, Austin Batz, Samuel Homiller +1
We present an analysis strategy for probing physics beyond the Standard Model via modifications to the parton distribution functions (PDFs) in a muon beam, which measurably alter t…
Lepton Flavor Violation: From Muon Decays to Muon Colliders
Pouya Asadi, Hengameh Bagherian, Katherine Fraser +2
We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precisi…
Strong CP from a Hidden Chiral Condensate
Csaba Csáki, Samuel Homiller, Taewook Youn
Models which solve the strong CP problem by employing discrete spacetime symmetries generically suffer fine-tuning and quality problems. We demonstrate that these issues are greatl…
Stopping Dark Mesons in Their Tracks with Long-Lived Particle and Resonant Signatures
Pouya Asadi, Austin Batz, Elias Bernreuther +3
Dark sectors with confining gauge interactions can provide both simple dark matter candidates and striking signals at colliders. We recast Large Hadron Collider searches for two di…
Fermion-Portal Dark Matter at a High-Energy Muon Collider
Pouya Asadi, Samuel Homiller, Aria Radick +1
In this work, we provide a comprehensive study of fermion-portal dark matter models in the freeze-in regime at a future muon collider. For different possible non-singlet fermion po…
Barr-Zee Diagrams at a High-Energy Muon Collider
Samuel Homiller, Jackie Lodman, Aditya Parikh +1
The sensitivity of electron EDM experiments has been increasing at a rapid pace, and could yield indications of new physics in the coming decade. An intriguing possibility is that…
Relevance of one-loop SMEFT matching in the 2HDM
Supratim Das Bakshi, Sally Dawson, Duarte Fontes +1
The Two-Higgs Doublet Model (2HDM) is a well understood alternative to the Standard Model of particle physics. If the new particles included in the 2HDM are at an energy scale much…
Wrinkles in the Froggatt-Nielsen Mechanism and Flavorful New Physics
Pouya Asadi, Arindam Bhattacharya, Katherine Fraser +2
When the Froggatt-Nielsen mechanism is used to explain the Standard Model flavor hierarchy, new physics couplings are also determined by the horizontal symmetry. However, additiona…
Chiral Nelson--Barr Models: Quality and Cosmology
Pouya Asadi, Samuel Homiller, Qianshu Lu +1
It was recently shown that domain walls from the spontaneous breaking of CP symmetry are exactly stable, and must be inflated away to recover a viable cosmology. We investigate the…
Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021
Tulika Bose, Antonio Boveia, Caterina Doglioni +318
This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM) report. It combines the EF topical group reports of EF08 (Model-specific explorations), EF09 (More gen…
Report of the Topical Group on Higgs Physics for Snowmass 2021: The Case for Precision Higgs Physics
Sally Dawson, Patrick Meade, Isobel Ojalvo +78
A future Higgs Factory will provide improved precision on measurements of Higgs couplings beyond those obtained by the LHC, and will enable a broad range of investigations across t…
Role of dimension-eight operators in an EFT for the 2HDM
Sally Dawson, Duarte Fontes, Samuel Homiller +1
The Standard Model effective field theory (SMEFT) is the tool of choice for studying deviations of Higgs couplings from the Standard Model predictions. The SMEFT is an expansion in…
Oblique Lessons from the Mass Measurement at CDF II
Pouya Asadi, Cari Cesarotti, Katherine Fraser +2
The CDF collaboration recently reported a new precise measurement of the boson mass with a central value significantly larger than the SM prediction. We explore the effec…
Complementary Signals of Lepton Flavor Violation at a High-Energy Muon Collider
Samuel Homiller, Qianshu Lu, Matthew Reece
A muon collider would be a powerful probe of flavor violation in new physics. There is a strong complementary case for collider measurements and precision low-energy probes of lept…
The physics case of a 3 TeV muon collider stage
Jorge De Blas, Dario Buttazzo, Rodolfo Capdevilla +131
In the path towards a muon collider with center of mass energy of 10 TeV or more, a stage at 3 TeV emerges as an appealing option. Reviewing the physics potential of such muon coll…
Muon Collider Physics Summary
Chiara Aimè, Aram Apyan, Mohammed Attia Mahmoud +122
The perspective of designing muon colliders with high energy and luminosity, which is being investigated by the International Muon Collider Collaboration, has triggered a growing i…
Probing New Gauge Forces with a High-Energy Muon Beam Dump
Cari Cesarotti, Samuel Homiller, Rashmish K. Mishra +1
We propose a new beam dump experiment at a future TeV-scale muon collider. A beam dump would be an economical and effective way to increase the discovery potential of the collider…
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…
The Impact of Dimension-8 SMEFT Contributions: A Case Study
Sally Dawson, Samuel Homiller, Matthew Sullivan
The use of the SMEFT Lagrangian to quantify possible Beyond the Standard Model (BSM) effects is standard in LHC and future collider studies. One of the usual assumptions is to trun…
Challenges for Unsupervised Anomaly Detection in Particle Physics
Katherine Fraser, Samuel Homiller, Rashmish K. Mishra +2
Anomaly detection relies on designing a score to determine whether a particular event is uncharacteristic of a given background distribution. One way to define a score is to use au…
Searching for Leptoquarks at Future Muon Colliders
Pouya Asadi, Rodolfo Capdevilla, Cari Cesarotti +1
A high energy muon collider can provide new and complementary discovery potential to the LHC or future hadron colliders. Leptoquarks are a motivated class of exotic new physics mod…
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…