Results 31 to 40 of about 93,573 (249)

Factorization at higher twist in hadron-hadron scattering

open access: yesNuclear Physics B, 1984
Abstract We study one-loop soft gluon effects in a scalar quark QCD model of the Drell-Yan process. We find that factorization of the type suggested by Politzer holds at order m 2 / s , but fails at order m 4 / s 2 . We suggest that this pattern holds to higher orders, and that the non-factoring terms are not suppressed by form factors.
Rahul Basu   +2 more
openaire   +2 more sources

Hadronic molecules and low-energy hadron-hadron scattering amplitudes

open access: yesAIP Conference Proceedings, 1995
Recently there has been considerable interest in the subject of molecules, which are weakly bound states of hadron pairs. The question of the existence of molecules is closely related to the more general problem of the determination of low energy hadron-hadron scattering amplitudes, which is widely believed to require nonperturbative methods.
Barnes T
exaly   +3 more sources

Spin effects in high energy hadron-hadron scattering

open access: yesZeitschrift f�r Physik C Particles and Fields, 1991
The spin-flip amplitudes of the meson-nucleon and nucleon-nucleon scattering are calculated in the framework of the dynamic model taking into account the interactions at large distances. The consideration of the strong form factors at the corresponding vertex and prea-symptotic contributions allowed us to describe correctly the differential cross ...
S. V. Goloskokov   +2 more
openaire   +2 more sources

The multiple scattering contribution to fixed-angle elastic hadron-hadron scattering

open access: yesNuclear Physics B, 1991
Abstract Using the factorized form of the leading behavior (in powers of Q) of fixed-angle elastic hadron-hadron scattering given by Botts and Sterman, the leading perturbative QCD contribution to dσ/dt (ϑ = π/2) for pions and protons is numerically evaluated.
J. Botts
openaire   +2 more sources

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   +2 more sources

An experiment for electron-hadron scattering at the LHC [PDF]

open access: yesThe European Physical Journal C, 2022
Novel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron ( eh ) scattering experiment at the LHC in the thirties for which key physics topics and their relation to the ...
K. André   +25 more
semanticscholar   +1 more source

Differential cross sections for high energy elastic hadron-hadron scattering in nonperturbative QCD [PDF]

open access: yes, 1998
. Total and differential cross sections for high energy and small momentum transfer elastic hadron-hadron scattering are studied in QCD using a functional integral approach.
E. Berger, O. Nachtmann
semanticscholar   +1 more source

Maximally entangled proton and charged hadron multiplicity in Deep Inelastic Scattering [PDF]

open access: yesThe European Physical Journal C, 2022
We study the proposal by Kharzeev–Levin to determine entanglement entropy in Deep Inelastic Scattering (DIS) from parton distribution functions (PDFs) and to relate the former to the entropy of final state hadrons.
M. Hentschinski, K. Kutak, R. Straka
semanticscholar   +1 more source

Search for neutral long-lived particles in pp collisions at s $$ \sqrt{s} $$ = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

open access: yesJournal of High Energy Physics, 2022
A search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb −1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015–2018 at a centre-of-mass energy of 13 TeV.
The ATLAS collaboration   +2867 more
doaj   +1 more source

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