activity
20082023
most citedAsymmetric Dark Matter from a GeV Hidden Sector

197 citations · 3.2k across the 79 of their papers we have counts for

collaborators

82 papers

hep-ph2023★ 10 cited

Effective Field Theory of the Two Higgs Doublet Model

Ian Banta, Timothy Cohen, Nathaniel Craig +2

We revisit the effective field theory of the two Higgs doublet model at tree level. The introduction of a novel basis in the UV theory allows us to derive matching coefficients in…

hep-ph2023★ 9 cited

Dark Sector Showers in the Lund Jet Plane

Timothy Cohen, Jennifer Roloff, Christiane Scherb

We investigate the consequences of models where dark sector quarks could be produced at the LHC, which subsequently undergo a dark parton shower, generating jets of dark hadrons th…

hep-ph2023

Anomaly Cancellation in Effective Field Theories From the Covariant Derivative Expansion

Timothy Cohen, Xiaochuan Lu, Zhengkang Zhang

We extend our recently-proposed formalism for calculating anomalies of global and gauge symmetries using the Covariant Derivative Expansion to include a general class of operators…

hep-ph2023★ 8 cited

Anomalies From the Covariant Derivative Expansion

Timothy Cohen, Xiaochuan Lu, Zhengkang Zhang

We revisit the calculation of anomalies for global and gauge symmetries in the framework of the Covariant Derivative Expansion (CDE). Due to the presence of UV divergences, the res…

hep-ph2022★ 2 cited

LHC EFT WG Note: Precision matching of microscopic physics to the Standard Model Effective Field Theory (SMEFT)

Sally Dawson, Admir Greljo, Kristin Lohwasser +16

This note gives an overview of the tools for the precision matching of ultraviolet theories to the Standard Model effective field theory (SMEFT) at the tree level and one loop. Sev…

hep-th2022★ 24 cited

Large Deviations in the Early Universe

Timothy Cohen, Daniel Green, Akhil Premkumar

Fluctuations play a critical role in cosmology. They are relevant across a range of phenomena from the dynamics of inflation to the formation of structure. In many cases, these flu…