Results 11 to 20 of about 16,692,771 (272)
Higher Order Corrections in Perturbative Quantum Field Theory via Sector Decomposition [PDF]
, 2011 The calculation of higher order corrections in perturbative quantum field theories is a particularly important subject. Our current model for particle physics is the stan- dard model; a quantum field theory which has served to describe a huge amount of ...
Carter, Jonathon Paul
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Novel approaches to perturbative scattering amplitudes in gauge theory and gravity [PDF]
, 2009 PhDScattering amplitudes of massless quanta play a crucial role in the calculation of cross sections for multi-jet production at hadron colliders. The framework provided by perturbative quantum field theory, based on Feynman diagrams, does not capture ...
Nasti, Adele
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On perturbative scattering amplitudes in maximally supersymmetric theories [PDF]
, 2011 PhDThere has been substantial calculational progress in the last few years in maximally supersymmetric theories, revealing unexpected simplicity, new structures and symmetries. In this thesis, after reviewing some of the recent advances in N = 4 super
Katsaroumpas, Panagiotis
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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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Perturbative and Non-perturbative Aspects of the Chern-Simons-Witten Theory [PDF]
, 2008 We investigate a relation between non-perturbative and perturbative cases in the 2+1 dimensional Chern-Simons- Witten (CSW) theory for G = E6 gauge group.
Yoyo Wardaya, Asep +3 more
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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
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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