Results 101 to 110 of about 88,365 (215)

Energy-dependent dipole form factor in a QCD-inspired model

open access: yes, 2015
We consider the effect of an energy-dependent dipole form factor in the high-energy behavior of the forward amplitude. The connection between the semihard parton-level dynamics and the hadron-hadron scattering is established by an eikonal QCD-based model.
Bahia, C. A. S.   +2 more
core   +1 more source

Measurement of the Z γ → ν ν ¯ γ $$ Z\gamma \to \nu \overline{\nu}\gamma $$ production cross section in pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV with the ATLAS detector and limits on anomalous triple gauge-boson couplings

open access: yesJournal of High Energy Physics, 2018
The production of Z bosons in association with a high-energy photon (Zγ production) is studied in the neutrino decay channel of the Z boson using pp collisions at s = 13 $$ \sqrt{s}=13 $$ TeV. The analysis uses a data sample with an integrated luminosity
The ATLAS collaboration   +2933 more
doaj   +1 more source

Measurement of the Drell-Yan triple-differential cross section in pp collisions at s=8 $$ \sqrt{s}=8 $$ TeV

open access: yesJournal of High Energy Physics, 2017
This paper presents a measurement of the triple-differential cross section for the Drell-Yan process Z/γ * → ℓ + ℓ − where ℓ is an electron or a muon. The measurement is performed for invariant masses of the lepton pairs, m ℓℓ , between 46 and 200 GeV ...
The ATLAS collaboration   +2891 more
doaj   +1 more source

Searches for third-generation scalar leptoquarks in s $$ \sqrt{s} $$ = 13 TeV pp collisions with the ATLAS detector

open access: yesJournal of High Energy Physics, 2019
Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark (t, b) and a lepton (τ, ν) of the third generation are considered. The limits are presented as a function of the leptoquark mass and the
The ATLAS collaboration   +2893 more
doaj   +1 more source

Study of the hadronisation process from single hadron and hadron-pair production in SIDIS at COMPASS

open access: yes, 2013
Hadron production in hard scattering reactions is described by the hadronization mechanism which combines quarks into final-state hadrons. Within the theoretical framework of leading-twist collinear QCD, the cross section for hadron production in semi ...
Makke, Nour
core   +1 more source

On equivalence of gluon-loop exchange in the inelastic processes in perturbative QCD to pion exchange in ɸ3 theory

open access: yesEPJ Web of Conferences, 2013
We consider the hadron–hadron inelastic scattering in the framework of QCD perturbation theory. It is shown that in QCD, due to conservation of color, the tree-level diagrams of inelastic scattering are prohibited and one has to deal with the diagrams ...
Sharf Igor   +9 more
doaj   +1 more source

Non-perturbative contributions to high energy hadron-hadron scattering

open access: yesPhysics Letters B, 1991
Abstract We evaluate non-perturbative contributions to high energy hadron-hadron scattering in a stochastic model for the physical vacuum. The vacuum parameters determined from high energy scattering agree well with those determined from hadron spectroscopy.
A. Krämer, H.G. Dosch
openaire   +1 more source

Elastic cross sections for high energy hadron-hadron scattering [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1999
4 pages, 2 eps figures.
openaire   +2 more sources

Measurements of inclusive and differential cross-sections of t t ¯ γ $$ t\overline{t}\gamma $$ production in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon ( t t ¯ γ $$ t\overline{t}\gamma $$ ). The analysis is performed using an integrated luminosity of 140 fb −1 of proton-
The ATLAS collaboration   +2909 more
doaj   +1 more source

The vacuum structure in QCD and hadron-hadron scattering

open access: yesZeitschrift f�r Physik C: Particles and Fields, 1984
Standard ideas on the structure of the vacuum in QCD suggest it to be full of fluctuating color fields. We investigate the possible influence of the chromomagnetic vacuum fields on high energy hadron-hadron reactions. We suggest that high energy quarks traversing these fields will produce soft gluon and photon radiation analogous to synchrotron ...
O. Nachtmann, A. Reiter
openaire   +1 more source

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