Results 21 to 30 of about 1,101 (227)
Journal of High Energy Physics, 2020 We consider QCD corrections to two loops for the polarized amplitudes of q q ¯ $$ q\overline{q} $$ → Z + Higgs boson. First we show how the polarized amplitudes of b b ¯ $$ b\overline{b} $$ → Zh associated with a non-vanishing b-quark Yukawa coupling and
Taushif Ahmed +3 more
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
Precise yield of high-energy photons from Higgsino dark matter annihilation
Journal of High Energy Physics, 2020 The impact of electroweak Sudakov logarithms on the endpoint of the photon spectrum for wino dark matter annihilation was studied intensively over the last several years. In this work, we extend these results to Higgsino dark matter χ 1 0 $$ {\chi}_1^0 $$
M. Beneke +3 more
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Virtual corrections to gg → ZH via a transverse momentum expansion
Journal of High Energy Physics, 2021 We compute the next-to-leading virtual QCD corrections to the partonic cross section of the production of a Higgs boson in association with a Z boson in gluon fusion.
Lina Alasfar +4 more
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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
Electroweak corrections to diphoton plus jets
Journal of High Energy Physics, 2017 We calculate the next-to-leading order electroweak corrections to the production of a photon pair in association with zero, one and two jets at the LHC. We use GoSam and Sherpa to obtain the results in a fully automated way. For a typical set of fiducial
Mauro Chiesa +3 more
doaj +1 more source
Measurement of the electron charge asymmetry in inclusive W production in pp collisions at √s = 7 TeV in the CMS experiment. [PDF]
, 2013 In this thesis, two measurements of the electron charge asymmetry in inclusive W boson production with the CMS detector are presented. The measurements are obtained from proton-proton collision data with sqrt(s) = 7 TeV.
Jarvis, Martyn
core +1 more source
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
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Mixed QCD-EW corrections for Higgs leptonic decay via HW + W − vertex
Journal of High Energy Physics, 2021 We consider the two-loop corrections to the HW + W − vertex at order αα s . We construct a canonical basis for the two-loop integrals using the Baikov representation and the intersection theory.
Chichuan Ma +4 more
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Constructing All-Order Corrections to Multi-Jet Rates [PDF]
, 2009 We discuss the universal behaviour of scattering cross sections in the limit of infinite rapidity separation between all produced particles, and illustrate the behaviour explicitly for the production of n jets, W+n jets, Z+n jets for n=2,3,4, and for H+2,
Andersen, J.R. +7 more
core +1 more source