Results 51 to 60 of about 17,630 (246)
, 2002 I review recent results in QCD at high energy, emphasizing the role of higher-order computations, power corrections, and Monte Carlo simulations in the study of a few discrepancies between data and perturbative predictions, and discussing future ...
Frixione, S.
core +3 more sources
Extending the MINLO method [PDF]
, 2016 We consider improving POWHEG+MINLO simulations, so as to also render them NLO accurate in the description of observables receiving contributions from events with lower parton multiplicity than present in their underlying NLO calculation.
Frederix, Rikkert, Hamilton, Keith
core +3 more sources
Meromorphic solutions of recurrence relations and DRA method for multicomponent master integrals
Journal of High Energy Physics, 2018 We formulate a method to find the meromorphic solutions of higher-order recurrence relations in the form of the sum over poles with coefficients defined recursively. Several explicit examples of the application of this technique are given.
Roman N. Lee, Kirill T. Mingulov
doaj +1 more source
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
Evaluating multi-loop Feynman integrals numerically through differential equations
Journal of High Energy Physics, 2019 The computation of Feynman integrals is often the bottleneck of multi-loop calculations. We propose and implement a new method to efficiently evaluate such integrals in the physical region through the numerical integration of a suitable set of ...
Manoj K. Mandal, Xiaoran Zhao
doaj +1 more source
, 2010 I review recent developments in POWHEG, a method for interfacing parton-shower generators with NLO QCD computations. I illustrate recent progress in understanding several features of the method, and in clarifying similarity and differences with respect ...
Nason, P.
core +1 more source
Matching NLO QCD and parton showers in heavy flavour production [PDF]
, 2003 We apply the MC@NLO approach to the process of heavy flavour hadroproduction. MC@NLO is a method for matching next-to-leading order (NLO) QCD calculations and parton shower Monte Carlo (MC) simulations, with the following features: fully exclusive events
Frixione, S, Nason, P, Webber, BR
core +2 more sources
Next-to-leading order electroweak corrections to off-shell WWW production at the LHC
Journal of High Energy Physics, 2018 Triboson processes allow for a measurement of the triple and quartic couplings of the Standard Model gauge bosons, which can be used to constrain anomalous gauge couplings.
Marek Schönherr
doaj +1 more source
Constructing d-log integrands and computing master integrals for three-loop four-particle scattering
Journal of High Energy Physics, 2020 We compute all master integrals for massless three-loop four-particle scattering amplitudes required for processes like di-jet or di-photon production at the LHC.
Johannes Henn +3 more
doaj +1 more source
Journal of High Energy Physics, 2022 We consider the problem of obtaining higher order in regularization parameter ε analytical results for master integrals with elliptics. The two commonly employed methods are provided by the use of differential equations and direct integration of ...
M. A. Bezuglov, A. I. Onishchenko
doaj +1 more source