Double copy for massive quantum particles with spin

H Johansson, A Ochirov - Journal of High Energy Physics, 2019 - Springer
The duality between color and kinematics was originally observed for purely adjoint
massless gauge theories, and later found to hold even after introducing massive fermionic …

Classical off-shell currents

F Comberiati, L de la Cruz - Journal of High Energy Physics, 2023 - Springer
A bstract We consider tree-level off-shell currents of two massive particles and n massless
bosons in the classical limit, which can be fused into the classical limit of n+ 2 scattering …

The rise of SMEFT on-shell amplitudes

R Aoude, CS Machado - Journal of High Energy Physics, 2019 - Springer
A bstract We present a map between the tree-level Standard Model Effective Theory
(SMEFT) in the Warsaw basis and massive on-shell amplitudes. As a first step, we focus on …

Helicity amplitudes for QCD with massive quarks

A Ochirov - Journal of High Energy Physics, 2018 - Springer
A bstract The novel massive spinor-helicity formalism of Arkani-Hamed, Huang and Huang
provides an elegant way to calculate scattering amplitudes in quantum chromodynamics for …

All-multiplicity amplitudes with four massive quarks and identical-helicity gluons

A Lazopoulos, A Ochirov, C Shi - Journal of High Energy Physics, 2022 - Springer
A bstract We explore the on-shell recursion for tree-level scattering amplitudes with massive
spinning particles. Based on the factorization structure encoded in the same way by two …

Scattering amplitudes approach to hard thermal loops

L de la Cruz - Physical Review D, 2021 - APS
Inspired by recent progress on classical limits of scattering amplitudes, we show that hard
thermal loops can be obtained from classical limits of off-shell currents. The classicality of …

On powercounting in perturbative quantum gravity theories through color-kinematic duality

RH Boels, RS Isermann - Journal of High Energy Physics, 2013 - Springer
A bstract The standard argument why gravity is not renormalisable relies on direct
powercounting of Feynman graphs to estimate the degree of UV divergence. In several …

SpinorsExtras-Mathematica implementation of massive spinor-helicity formalism

J Kuczmarski - arXiv preprint arXiv:1406.5612, 2014 - arxiv.org
We present SpinorsExtras package implementing massive spinor-helicity formalism in
Mathematica on top of S@ M package. Package defines new objects for Mathematica …

BCFW deformation and Regge limit

CH Fu, JC Lee, CI Tan, Y Yang - arXiv preprint arXiv:1305.7442, 2013 - arxiv.org
BCFW deformation has served as an extremely useful tool in providing a recursive approach
in studying color-ordered gauge amplitudes. This procedure has also been generalized to …

[PDF][PDF] Effective field theory phenomenology and scattering amplitudes

R Aoude - 2020 - openscience.ub.uni-mainz.de
Abstract The Standard Model (SM) is an effective description of Nature and experimental
evidences indicates that beyond SM physics ought to exist. The series of the LHC null …