Results 41 to 50 of about 85,529 (240)

Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment

open access: yesJournal of High Energy Physics, 2022
This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/γ ∗) in association with jets in proton-proton collisions for the ATLAS experiment at the Large Hadron Collider.
The ATLAS collaboration   +2864 more
doaj   +1 more source

A New Fracture Function Approach to QCD Initial State Radiation [PDF]

open access: yes, 2007
Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in arbitrary number, thus offering a renewed framework for dealing with QCD ...
Aktas   +29 more
core   +2 more sources

Inclusive hadron-hadron scattering in the Feynman gauge

open access: yesNuclear Physics B, 1985
Abstract We analyze the structure of high-energy inclusive hadron-hadron scattering in the Feynman gauge. We show that final-state interactions cancel on a graph-by-graph basis after a sum over final states. We go on to show that the leading high-energy behavior of disconnected parton scatterings in the Feynman gauge is the same as in physical gauges,
J.M.F. Labastida, George Sterman
openaire   +2 more sources

Measurements of Zγ+jets differential cross sections in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
Differential cross-section measurements of Zγ production in association with hadronic jets are presented, using the full 139 fb −1 dataset of s $$ \sqrt{s} $$ = 13 TeV proton–proton collisions collected by the ATLAS detector during Run 2 of the LHC ...
The ATLAS collaboration   +2935 more
doaj   +1 more source

Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → b b ¯ $$ b\overline{b} $$ , in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2023
A search for flavour-changing neutral-current decays of a top quark into an up-type quark (either up or charm) and a light scalar particle X decaying into a bottom anti-bottom quark pair is presented. The search focuses on top-quark pair production where
The ATLAS collaboration   +2910 more
doaj   +1 more source

Diffraction at HERA and the Confinement Problem [PDF]

open access: yes, 2000
We discuss HERA data on the high energy behavior of the total gamma*p cross section and on diffraction in deep inelastic scattering. We outline their novelty in comparison with diffraction in high energy hadron hadron scattering.
Bartels, J., Kowalski, H.
core   +2 more sources

Factorization for short distance hadron-hadron scattering

open access: yesNuclear Physics B, 1985
Abstract We show that factorization holds at leading twist in the Drell-Yan cross section dσ/dQ2dy and related inclusive hadron-hadron cross sections. We review the heuristic arguments for factorization, as well as the difficulties which must be overcome in a proof.
George Sterman   +3 more
openaire   +2 more sources

Measurement of Higgs boson decay into b-quarks in associated production with a top-quark pair in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2022
The associated production of a Higgs boson and a top-quark pair is measured in events characterised by the presence of one or two electrons or muons. The Higgs boson decay into a b-quark pair is used.
The ATLAS collaboration   +2923 more
doaj   +1 more source

Gravitation interaction with extra dimension and periodic structure of the hadron scattering amplitude

open access: yes, 2011
The behavior of the hadron scattering amplitude determined by the gravitation interaction of hadron at high energies with impact of the KK-modes in d-brane models of gravity is examined. The possible periodic structure of the scattering amplitude and its
Appelquist T.   +6 more
core   +1 more source

Isospin quantum distances in hadron-hadron scattering

open access: yesPhysics Letters B, 1996
Abstract In this paper, the quantum distances between two isospin channels, in the Hilbert space of the hadron-hadron scattering amplitudes, are introduced. These isospin quantum distances, as well as their isospin bounds, are expressed in terms of the channel cross sections and polarisation parameters.
D.B. Ion, M.L.D. Ion
openaire   +2 more sources

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