The diffractive component of multihadron production processes at high energies

A gradual transition to the reflecting scattering mode developing already at the LHC energies is affecting multiparticle production dynamics, in particular, relation of the centrality with the impact parameter values of pp-collisions. We discuss the issues in the framework of the geometrical picture for the multiparticle production processes proposed by Chou and Yang. We consider effects of reflective scattering mode presence for the inclusive cross-sections.

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INITIAL STATE SCATTERING AND pT SPECTRA OF MUON PAIRS IN HADRON-NUCLEUS AND NUCLEUS-NUCLEUS COLLISIONS AT HIGH ENERGIES

Modern Physics Letters A ◽

10.1142/s0217732392000513 ◽

1992 ◽

Vol 07 (07) ◽

pp. 545-557

Author(s):

V.A. SALEEV ◽

N.P. ZOTOV

Keyword(s):

Transverse Momentum ◽

Transverse Energy ◽

Good Description ◽

Momentum Dependence ◽

Initial State ◽

Muon Pair ◽

High Energies ◽

Production Processes ◽

Muon Pairs ◽

Muon Pair Production

The muon pair production processes in hadron-nucleus and nucleus-nucleus collisions at high energies are considered using the additive quark model and the perturbation QCD. The transverse momentum dependence of the muon pairs in hadron-nucleus collisions is described. The pT-dependence of the muon pair distributions and their ratio at different values of the total transverse energy ET in heavy nucleus collisions is predicted. A good description of the ET-dependence of [Formula: see text] is provided.

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1/Nc EXPANSION, QUARK MODEL AND HADRON COLLISIONS AT HIGH ENERGIES

International Journal of Modern Physics A ◽

10.1142/s0217751x86000198 ◽

1986 ◽

Vol 01 (02) ◽

pp. 463-480 ◽

Cited By ~ 2

Author(s):

V.V. ANISOVICH ◽

M.N. KOBRINSKY ◽

V.A. NIKONOV ◽

J. NYÍRI

Keyword(s):

Quark Model ◽

Formation Mechanism ◽

Cross Sections ◽

Hadron Production ◽

Hadron Collision ◽

High Energies ◽

Production Processes ◽

Collision Processes ◽

Colour Screening

Soft hadron-collision processes at high energies are considered, under the assumption that gluon interactions are short-ranged and that the rules of the 1/Nc expansion are fulfilled. It is shown, that these considerations lead to the scheme of the additive quark model with some relatively large additional effects of colour screening. This colour screening is responsible for the unnatural breaking of the Levin-Frankfurt condition1 and also for the effective increase of cross sections for hadron-nucleus interactions2 if quark bags in nuclei exist, The formation mechanism of fragmentational particles is considered in multiple hadron-production processes.

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