159 citations · 505 across the 18 of their papers we have counts for
19 papers
Abundant production of scalars and axions from phase transition bubble expansion
Isabel Garcia Garcia, Gaurang Ramakant Kane, John March-Russell +1
We revisit aspects of particle production during cosmological first-order phase transitions, and show that the expansion of true-vacuum bubbles can be a copious source of particle…
Reflections on Bubble Walls
Isabel Garcia Garcia, Giacomo Koszegi, Rudin Petrossian-Byrne
We discuss the dynamics of expanding bubble walls in the presence of massive dark photons whose mass changes as they cross the wall. For sufficiently thin walls, we show that there…
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…
Snowmass White Paper: Implications of Quantum Gravity for Particle Physics
Patrick Draper, Isabel Garcia Garcia, Matthew Reece
Quantum gravity places important consistency conditions on low-energy effective field theory, such as the absence of global symmetries. These may have important consequences in the…
Snowmass White Paper: Strong CP Beyond Axion Direct Detection
Nikita Blinov, Nathaniel Craig, Matthew J. Dolan +5
We sketch recent progress and promising future directions for research connected with the strong CP problem. Topics surveyed include axion dark matter substructure and its gravitat…
The Forward Physics Facility at the High-Luminosity LHC
Jonathan L. Feng, Felix Kling, Mary Hall Reno +233
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing L…
A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
J. Aalbers, K. Abe, V. Aerne +591
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leadi…
Magic Zeroes and Hidden Symmetries
Nathaniel Craig, Isabel Garcia Garcia, Arkady Vainshtein +1
Selection rules arising from accidental or broken symmetries may be sufficiently obscure that their agency is hidden, leading to the appearance of "magic zeroes" -- quantities that…
de Sitter Decays to Infinity
Patrick Draper, Isabel Garcia Garcia, Benjamin Lillard
Bubbles of nothing are a class of vacuum decay processes present in some theories with compactified extra dimensions. We investigate the existence and properties of bubbles of noth…
Bubble of nothing decays of unstable theories
Patrick Draper, Isabel Garcia Garcia, Benjamin Lillard
Theories with compact extra dimensions are sometimes unstable to decay into a bubble of nothing -- an instability resulting in the destruction of spacetime. We investigate the exis…
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…
P not PQ
Nathaniel Craig, Isabel Garcia Garcia, Giacomo Koszegi +1
Parity solutions to the strong CP problem are a compelling alternative to approaches based on Peccei-Quinn symmetry, particularly given the expected violation of global symmetries…
The UV Fate of Anomalous s and the Swampland
Nathaniel Craig, Isabel Garcia Garcia, Graham D. Kribs
Massive gauge theories featuring parametrically light vectors are suspected to belong in the Swampland of consistent EFTs that cannot be embedded into a theory of quantum gr…
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…
LHCb anomalies from a natural perspective
Isabel Garcia Garcia
Tension between the Standard Model (SM) and data concerning processes has become apparent. Most notoriously, concerning the ratio, which probes lepton non-u…
The String Soundscape at Gravitational Wave Detectors
Isabel Garcia Garcia, Sven Krippendorf, John March-Russell
We argue that gravitational wave (GW) signals due to collisions of ultra-relativistic bubble walls may be common in string theory. This occurs due to a process of post-inflationary…
Natural Scherk-Schwarz Theories of the Weak Scale
Isabel Garcia Garcia, Kiel Howe, John March-Russell
Natural supersymmetric theories of the weak scale are under growing pressure given present LHC constraints, raising the question of whether untuned supersymmetric (SUSY) solutions…
Twin Higgs WIMP Dark Matter
Isabel García García, Robert Lasenby, John March-Russell
Dark matter (DM) without a matter asymmetry is studied in the context of Twin Higgs (TH) theories in which the LHC naturalness problem is addressed. These possess a twin sector rel…
Rare Flavor Processes in Maximally Natural Supersymmetry
Isabel García García, John March-Russell
We study CP-conserving rare flavor violating processes in the recently proposed theory of Maximally Natural Supersymmetry (MNSUSY). MNSUSY is an unusual supersymmetric (SUSY) exten…