Results 21 to 30 of about 201,569 (217)

QCD static force in gradient flow

open access: yesJournal of High Energy Physics, 2022
We compute the QCD static force and potential using gradient flow at next-to-leading order in the strong coupling. The static force is the spatial derivative of the static potential: it encodes the QCD interaction at both short and long distances.
Nora Brambilla   +3 more
doaj   +1 more source

Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at √s=7 TeV with the ATLAS detector [PDF]

open access: yes, 2011
The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton–proton collisions at a centre-of-mass energy of √s=7 TeV, using the ATLAS detector at the LHC.
G. Khoriauli   +999 more
core   +3 more sources

Charge asymmetry in electron/positron energy loss in nuclear Bremsstrahlung

open access: yesJournal of High Energy Physics, 2021
We calculate the leading Coulomb correction to the Bremsstrahlung energy loss in the electron-nucleus collisions for arbitrary energy of the incoming particle. This correction determines the charge asymmetry, i.e., the difference of electron and positron
Roman N. Lee, Andrey F. Pikelner
doaj   +1 more source

The one-loop amplitudes for Higgs + 4 partons with full mass effects

open access: yesJournal of High Energy Physics, 2020
We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, 0 → ggggh, 0 → q ¯ $$ \overline{q} $$ qggh and 0 → q ¯ $$ \overline{q} $$ q q ¯ ′ $$ {\overline{q}}^{\prime } $$ q′h, mediated by a loop of massive coloured
Lucy Budge   +4 more
doaj   +1 more source

Efficiency improvements for the numerical computation of NLO corrections [PDF]

open access: yesJournal of High Energy Physics, 2012
In this paper we discuss techniques, which lead to a significant improvement of the efficiency of the Monte Carlo integration, when one-loop QCD amplitudes are calculated numerically with the help of the subtraction method and contour deformation. The techniques discussed are: holomorphic and non-holomorphic division into sub-channels, optimisation of ...
Becker, Sebastian   +2 more
openaire   +2 more sources

Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector [PDF]

open access: yes, 2012
A measurement of the top-antitop production charge asymmetry A C is presented using data corresponding to an integrated luminosity of 1.04 fb−1 of pp collisions at s√=7 TeV collected by the ATLAS detector at the LHC.

core   +3 more sources

Diphoton production in vector-boson scattering at the LHC at next-to-leading order QCD

open access: yesJournal of High Energy Physics, 2020
In this paper, we present results at next-to-leading order (NLO) QCD for photon pair production in association with two jets via vector boson scattering within the Standard Model (SM), and also in an effective field theory framework with anomalous gauge ...
Francisco Campanario   +3 more
doaj   +1 more source

Improving colour computations in MadGraph5_aMC@NLO and exploring a $$1/N_c$$ expansion

open access: yesThe European Physical Journal C, 2022
AbstractIn this paper, we present an extension of which is able to evaluate tree-level QCD matrix-elements up to $$2\rightarrow 6$$ 2 → 6 (one more particle than before).
Andrew Lifson, Olivier Mattelaer
openaire   +2 more sources

NLO ACTIVITY AND COMPUTATIONAL DISCUSSION OF HALOGEN-SUBSTITUTED CHALCONE DERIVATIVES

open access: yesRASAYAN Journal of Chemistry, 2023
The four halogen-substituted chalcones 1–4 have been synthesized and analyzed to FT-Infrared, UV-Visible, GC-MS spectrometer, and 1D NMR (1H and 13C) spectroscopy techniques. Computational calculations were carried out for geometrical optimization of structure regards bond length, bond angle, and torsional angle estimated.
V. Shunmuga Vadivoo   +3 more
openaire   +1 more source

Constructing d-log integrands and computing master integrals for three-loop four-particle scattering

open access: yesJournal 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

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