Results 31 to 40 of about 201,569 (217)
scailfin/MadGraph5_aMC-NLO: MadGraph5_aMC@NLO v3.5.1
, 2023 Release for MadGraph5_aMC@NLO v3.5.1. CalVer is used for tags as MadGraph overwrites previous patch releases on LaunchPad and so old releases are not recoverable outside of these Docker ...
Mark Neubauer, Matthew Feickert
core +1 more source
Master integrals for bipartite cuts of three-loop photon self energy
Journal of High Energy Physics, 2021 We calculate the master integrals for bipartite cuts of the three-loop propagator QED diagrams. These master integrals determine the spectral density of the photon self energy.
R. N. Lee, A. I. Onishchenko
doaj +1 more source
Computing decay rates for new physics theories with FeynRules and MadGraph 5_aMC@NLO [PDF]
Computer Physics Communications, 2015 32 pages, 2 figures.
Johan Alwall +5 more
openaire +4 more sources
Journal of High Energy Physics, 2020 Differential equations are a powerful tool for evaluating Feynman integrals. Their solution is straightforward if a transformation to a canonical form is found. In this paper, we present an algorithm for finding such a transformation.
Christoph Dlapa, Johannes Henn, Kai Yan
doaj +1 more source
NLO computation of diffractive di-hadron production in a saturation framework
Journal of High Energy Physics, 2023 Abstract The cross-sections of diffractive double hadron photo- or electroproduction with large pT, on a nucleon or a nucleus, are calculated to NLO accuracy. A hybrid formalism mixing collinear factorization and high energy small-x factorization, more precisely the shockwave formalism for the latter, is used to derive the results.
Fucilla, Michael +4 more
openaire +4 more sources
Two-loop amplitudes for Higgs plus jet production involving a modified trilinear Higgs coupling
Journal of High Energy Physics, 2019 We calculate the contributions to the two-loop scattering amplitudes h → gg, h → ggg and h → q q ¯ g $$ h\to q\overline{q}g $$ that arise from a modified trilinear Higgs coupling λ.
Martin Gorbahn, Ulrich Haisch
doaj +1 more source
Relic density computations at NLO: infrared finiteness and thermal correction [PDF]
Journal of High Energy Physics, 2014 Abstract There is an increasing interest in accurate dark matter relic density predictions, which requires next-to-leading order (NLO) calculations. The method applied up to now uses zero-temperature NLO calculations of annihilation cross sections in the standard Boltzmann equation for freeze-out, and is conceptually ...
Beneke, Martin +2 more
openaire +2 more sources
Top-Yukawa contributions to bbH production at the LHC
Journal of High Energy Physics, 2019 We study the production of a Higgs boson in association with bottom quarks b b ¯ H $$ \left(b\overline{b}H\right) $$ in hadronic collisions at the LHC, including the different contributions stemming from terms proportional to the top-quark Yukawa ...
Nicolas Deutschmann +3 more
doaj +1 more source
Journal of High Energy Physics, 2021 The renormalization constant Z J of the flavor-singlet axial-vector current with a non-anticommuting γ 5 in dimensional regularization is determined to order α s 3 $$ {\alpha}_s^3 $$ in QCD with massless quarks.
Taushif Ahmed, Long Chen, Michał Czakon
doaj +1 more source
Journal of High Energy Physics, 2020 We consider the on-shell mass and wave function renormalization constants Z m OS $$ {Z}_m^{\mathrm{OS}} $$ and Z 2 OS $$ {Z}_2^{\mathrm{OS}} $$ up to three-loop order allowing for a second non-zero quark mass.
Matteo Fael +2 more
doaj +1 more source