Results 11 to 20 of about 3,855 (243)
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
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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
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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
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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
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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
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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
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
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Higher order perturbative QCD calculation of jet cross sections ine + e − annihilation
Zeitschrift für Physik C Particles and Fields, 1982 We present in detail the analytic calculation of the Sterman-Weinberg type 3-jet cross section to order αs2 The fit to recent PLUTO data gives in the\({MS}\) scheme αs which corresponds to Λ=0.24 GeV in the 1-loop approximation.
K. Fabricius +3 more
openaire +1 more source
Automation of antenna subtraction in colour space: gluonic processes
Journal of High Energy Physics, 2022 We present the colourful antenna subtraction method, a reformulation of the antenna subtraction scheme for next-to-next-to-leading order (NNLO) calculations in QCD. The aim of this new approach is to achieve a general and process-independent construction
X. Chen +4 more
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NLO EW and QCD corrections to polarised same-sign WW scattering at the LHC
Journal of High Energy PhysicsWe present the first calculation of same-sign WW scattering at the LHC in the fully leptonic decay channel including the modelling of polarisation for intermediate electroweak bosons and radiative corrections up to NLO EW+QCD accuracy.
Ansgar Denner +2 more
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