Tootfinder

This https://arxiv.org/abs/2405.01256 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Automatic generation of helicity amplitudes in Feynman-Diagram gauge
We develop a method to calculate helicity amplitudes of an arbitrary tree-level process in Feynman-Diagram (FD) gauge for an arbitrary gauge model with MadGraph5_aMC@NLO. We start from the 't Hooft-Feynman gauge Lagrangian in FeynRules and generate scattering amplitudes by identifying the Goldstone boson as the $5^{\rm th}$ component of each weak boson. All the vertices of the 5-component weak bosons are then created automatically by assembling the relevant weak boson and Goldstone boson vertic…

Finite-temperature renormalization of Standard Model coupled with gravity, and its implications for cosmology
I. Y. Park
https://arxiv.org/abs/2404.07335 h…

Finite-temperature renormalization of Standard Model coupled with gravity, and its implications for cosmology
Finite-temperature one-loop renormalization of the Standard Model, coupled with dynamic metrics, is conducted in this study. The entire analysis is coherently carried out by using the refined background field method, applied in the spirit of the Coleman-Weinberg technique. The general form of the propagator, introduced in our previous work to facilitate Feynman diagram computation in a general curved background, proves useful in the presence of time-dependent temperature. Its utilization allows…

Finite-temperature renormalization of Standard Model coupled with gravity, and its implications for cosmology
I. Y. Park
https://arxiv.org/abs/2404.07335 h…

Finite-temperature renormalization of Standard Model coupled with gravity, and its implications for cosmology
Finite-temperature one-loop renormalization of the Standard Model, coupled with dynamic metrics, is conducted in this study. The entire analysis is coherently carried out by using the refined background field method, applied in the spirit of the Coleman-Weinberg technique. The general form of the propagator, introduced in our previous work to facilitate Feynman diagram computation in a general curved background, proves useful in the presence of time-dependent temperature. Its utilization allows…