Results 41 to 50 of about 66,503 (311)
One-loop matrix element emulation with factorisation awareness
Journal of High Energy Physics, 2023 In this article we present an emulation strategy for one-loop matrix elements. This strategy is based on the factorisation properties of matrix elements and is an extension of the work presented in [1].
D. Maître, H. Truong
doaj +1 more source
Building blocks of Cwebs in multiparton scattering amplitudes
Journal of High Energy Physics, 2022 The correlators of Wilson-line operators in non-abelian gauge theories are known to exponentiate, and their logarithms can be organised in terms of the collections of Feynman diagrams called Cwebs.
Neelima Agarwal +3 more
doaj +1 more source
Double-real-virtual and double-virtual-real corrections to the three-loop thrust soft function
Journal of High Energy Physics, 2022 We compute the O $$ \mathcal{O} $$ ( α s 3 $$ {\alpha}_s^3 $$ ) double-real-virtual (RRV) and double-virtual-real (VVR) soft contributions to the thrust/zero-jettiness event shape.
Wen Chen, Feng Feng, Yu Jia, Xiaohui Liu
doaj +1 more source
One-loop Lipatov vertex in QCD with higher ϵ-accuracy
Journal of High Energy Physics, 2023 The effective Reggeon-Reggeon-gluon vertex, known as Lipatov vertex, is the key ingredient that allows to develop the BFKL approach in QCD. Within the next-to-leading logarithmic approximation, it is sufficient to know its one-loop corrections, in ...
Victor S. Fadin +2 more
doaj +1 more source
Tensor reduction of loop integrals
Journal of High Energy Physics, 2023 The computational cost associated with reducing tensor integrals to scalar integrals using the Passarino-Veltman method is dominated by the diagonalisation of large systems of equations.
Charalampos Anastasiou +2 more
doaj +1 more source
Transverse momentum resummation at N3LL+NNLO for diboson processes
Journal of High Energy Physics, 2023 Diboson processes are one of the most accessible and stringent probes of the electroweak gauge structure of the Standard Model at the LHC. They will be probed at the percent level at the high-luminosity LHC, challenging current theory predictions.
John M. Campbell +3 more
doaj +1 more source
Deciphering colour building blocks of massive multiparton amplitudes at 4-loops and beyond
Journal of High Energy Physics, 2023 The soft function in non-abelian gauge theories exponentiate, and their logarithms can be organised in terms of the collections of Feynman diagrams called Cwebs.
Neelima Agarwal +3 more
doaj +1 more source
Theoretical uncertainties for cosmological first-order phase transitions [PDF]
Journal of High Energy Physics, 2020 We critically examine the magnitude of theoretical uncertainties in perturbative calculations of fist-order phase transitions, using the Standard Model effective field theory as our guide. In the usual daisy-resummed approach, we find large uncertainties
D. Croon +4 more
semanticscholar +1 more source
Journal of High Energy Physics, 2023 We consider Drell-Yan production and QCD-induced diphoton production and compute their rapidity distributions up to next-to-leading power (NLP) in the threshold variable.
Robin van Bijleveld +3 more
doaj +1 more source
, 2023 <p>This release contains a dataset of structures used in multilevel quantum calculations for the methanol to dimethyl ether reaction. This hybrid method combines density functional theory, with dispersion corrections (DFT-D3), for the full periodic
jc14269
core +1 more source