307 citations · 2.2k across the 50 of their papers we have counts for
50 papers
Constraints on the spectrum of field theories with non-integer symmetry from quantum evanescence
Weiguang Cao, Xiaochuan Lu, Tom Melia
We identify constraints in the energy spectra of quantum theories that have a global symmetry, where is treated as a continuous parameter. We point out that a class of e…
The Compton Spectrometer and Imager
John A. Tomsick, Steven E. Boggs, Andreas Zoglauer +72
The Compton Spectrometer and Imager (COSI) is a NASA Small Explorer (SMEX) satellite mission in development with a planned launch in 2027. COSI is a wide-field gamma-ray telescope…
The cosipy library: COSI's high-level analysis software
Israel Martinez-Castellanos, Savitri Gallego, Chien-You Huang +72
The Compton Spectrometer and Imager (COSI) is a selected Small Explorer (SMEX) mission launching in 2027. It consists of a large field-of-view Compton telescope that will probe wit…
The Classical Equations of Motion of Quantized Gauge Theories, Part 2: Electromagnetism
David E. Kaplan, Tom Melia, Surjeet Rajendran
In this and companion papers, we show that quantum field theories with gauge symmetries permit a broader class of classical dynamics than typically assumed. In this article, we sho…
The Classical Equations of Motion of Quantized Gauge Theories, Part I: General Relativity
David E. Kaplan, Tom Melia, Surjeet Rajendran
In this and a companion paper, we show that quantum field theories with gauge symmetries permit a broader class of classical dynamics than typically assumed. In this article, we sh…
Non-linear non-renormalization theorems
Weiguang Cao, Franz Herzog, Tom Melia +1
We study the mixing of operators under renormalization group flow in quantum theories, and prove a non-renormalization theorem at non-linear order. It dictates zeros up to a certai…
Hilbert Series, the Higgs Mechanism, and HEFT
Lukáš Gráf, Brian Henning, Xiaochuan Lu +2
We expand Hilbert series technologies in effective field theory for the inclusion of massive particles, enabling, among other things, the enumeration of operator bases for non-line…
Theory Techniques for Precision Physics -- Snowmass 2021 TF06 Topical Group Report
Radja Boughezal, Zoltan Ligeti, Wolfgang Altmannshofer +26
The wealth of experimental data collected at laboratory experiments suggests that there is some scale separation between the Standard Model (SM) and phenomena beyond the SM (BSM).…
Linear Sigma Dark Matter
Dan Kondo, Robert McGehee, Tom Melia +1
We present a model of self-interacting dark matter based on QCD-like theories and inspired by the proximity of to the threshold. Dark matter is com…
Theoretical developments in the SMEFT at dimension-8 and beyond
Simone Alioli, Radja Boughezal, Weiguang Cao +24
In this contribution to the Snowmass 2021 process we review theoretical developments in the Standard Model Effective Field Theory (SMEFT) with a focus on effects at the dimension-8…
Time Evolution in Quantum Cosmology
Anne-Katherine Burns, David E. Kaplan, Tom Melia +1
The quantum description of time evolution in non-linear gravitational systems such as cosmological space-times is not well understood. We show, in the simplified setting of mini-su…
Snowmass2021 Cosmic Frontier: The landscape of cosmic-ray and high-energy photon probes of particle dark matter
Tsuguo Aramaki, Mirko Boezio, James Buckley +22
This white paper discusses the current landscape and prospects for experiments sensitive to particle dark matter processes producing photons and cosmic rays. Much of the gamma-ray…
Outer Automorphism Anomalies
Brian Henning, Xiaochuan Lu, Tom Melia +1
We discuss anomalies associated with outer automorphisms in gauge theories based on classical groups, namely charge conjugations for and parities for . We emphasize…
Universal fine grained asymptotics of free and weakly coupled Quantum Field Theory
Weiguang Cao, Tom Melia, Sridip Pal
We give a rigorous proof that in any free quantum field theory with a finite group global symmetry , on a compact spatial manifold, at sufficiently high energy, the den…
The Compton Spectrometer and Imager Project for MeV Astronomy
John A. Tomsick, Steven E. Boggs, Andreas Zoglauer +33
The Compton Spectrometer and Imager (COSI) is a 0.2-5 MeV Compton telescope capable of imaging, spectroscopy, and polarimetry of astrophysical sources. Such capabilities are made p…
A Large- Expansion for Minimum Bias
Andrew J. Larkoski, Tom Melia
Despite being the overwhelming majority of events produced in hadron or heavy ion collisions, minimum bias events do not enjoy a robust first-principles theoretical description as…
Renormalization and non-renormalization of scalar EFTs at higher orders
Weiguang Cao, Franz Herzog, Tom Melia +1
We renormalize massless scalar effective field theories (EFTs) to higher loop orders and higher orders in the EFT expansion. To facilitate EFT calculations with the R* renormalizat…
EFT Asymptotics: the Growth of Operator Degeneracy
Tom Melia, Sridip Pal
We establish formulae for the asymptotic growth (with respect to the scaling dimension) of the number of operators in effective field theory, or equivalently the number of -matr…
2, 12, 117, 1959, 45171, 1170086, ...: A Hilbert series for the QCD chiral Lagrangian
Lukas Graf, Brian Henning, Xiaochuan Lu +2
We apply Hilbert series techniques to the enumeration of operators in the mesonic QCD chiral Lagrangian. Existing Hilbert series technologies for non-linear realizations are extend…
Covariantizing Phase Space
Andrew J. Larkoski, Tom Melia
We covariantize calculations over the manifold of phase space, establishing Stokes' theorem for differential cross sections and providing new definitions of familiar observable pro…
Effective Field Theory for Acoustic and Pseudo-Acoustic Phonons in Solids
Angelo Esposito, Emma Geoffray, Tom Melia
We present a relativistic effective field theory for the interaction between acoustic and gapped phonons in the limit of a small gap. We show that, while the former are the Goldsto…
Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets
Hao Chen, Rupak Mahapatra, Glenn Agnolet +7
The detection of a single quantum of energy with high efficiency and low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optic…
Multiphonon excitations from dark matter scattering in crystals
Brian Campbell-Deem, Peter Cox, Simon Knapen +2
For direct detection of sub-MeV dark matter, a promising strategy is to search for individual phonon excitations in a crystal. We perform an analytic calculation of the rate for li…
The Dark Matter Phonon Coupling
Peter Cox, Tom Melia, Surjeet Rajendran
Generically, the effective coupling between the dark matter and an atom scales with the number of constituents in the atom, resulting in the effective coupling being proportional t…