scholarly journals New parton model for the soft interactions at high energies: The odderon

2020 ◽  
Vol 101 (9) ◽  
Author(s):  
E. Gotsman ◽  
E. Levin ◽  
I. Potashnikova
Keyword(s):  
Parton Model ◽  
High Energies ◽  
Soft Interactions

scholarly journals A Study of Soft Interactions at Ultra High Energies

2008 ◽  
Vol 38 (3b) ◽  
Author(s):  
E. Gotsman ◽  
E. Levin ◽  
U. Maor
Keyword(s):  
High Energies ◽  
Soft Interactions

HADRON PRODUCTION IN HIGH ENERGY LEPTON-NUCLEON AND LEPTON-NUCLEUS COLLISIONS

1988 ◽  
Vol 03 (09) ◽  
pp. 1997-2065 ◽  
Author(s):  
NORBERT SCHMITZ
Keyword(s):  
Meson Production ◽  
Parton Model ◽  
High Energy ◽  
Hadron Production ◽  
Model Data ◽  
High Energies ◽  
Quantum Numbers ◽  
Quark Parton Model ◽  
Fragmentation Functions ◽  
Bose Einstein

Recent experimental results on the production of hadrons in collisions of muons, neutrinos and antineutrinos with nucleons and nuclei at high energies are reviewed and discussed in the framework of the quark-parton model. Data are presented on the following topics: Multiplicities, fragmentation functions, transverse momenta and jet properties, azimuthal asymmetry, distribution of quantum numbers, production of strange and charmed particles, test of PCAC and shadowing, single meson production, and Bose-Einstein correlations.

scholarly journals A New Distribution for Multiplicities in Leptonic and Hadronic Collisions at High Energies

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Ridhi Chawla ◽  
M. Kaur
Keyword(s):  
Phase Space ◽  
Diffusion Theory ◽  
Data Set ◽  
Adoption Of Innovations ◽  
Gompertz Distribution ◽  
High Energies ◽  
Full Phase Space ◽  
Soft Interactions ◽  
Hadronic Collisions ◽  
New Distribution

Charged particles' production in the e+e-, p¯p, and pp collisions in full phase space as well as in the restricted phase space slices, at high energies, is described with predictions from shifted Gompertz distribution, a model of adoption of innovations. The distribution has been extensively used in diffusion theory, social networks, and forecasting. A two-component model in which PDF obtained from the superposition of two shifted Gompertz distributions is introduced to improve the fitting of the experimental distributions by several orders. The two components correspond to the two subgroups of a data set, one representing the soft interactions and the other semihard interactions. Mixing is done by appropriately assigning weights to each subgroup. Our first attempt to analyse the data with shifted Gompertz distribution has produced extremely good results. It is suggested that the distribution may be included in the host of distributions more often used for the multiplicity analyses.

scholarly journals AGK CUTTING RULES AND PERTURBATIVE QCD

1996 ◽  
Vol 11 (04) ◽  
pp. 613-654 ◽  
Author(s):  
D. TRELEANI
Keyword(s):  
Perturbative Qcd ◽  
Cross Section ◽  
Cross Sections ◽  
Parton Model ◽  
Single Scattering ◽  
High Energy ◽  
The Self ◽  
Energy Hadron ◽  
Three Body ◽  
Soft Interactions

The purpose of this article is to describe a few features of semihard interactions, in high energy nuclear collisions, that are better understood with the help of the AGK cutting rules, and of the probabilistic picture of the interaction which follows. In the first part of the article the cutting rules are discussed for the simplest component of the forward three-body parton amplitude in the large s fixed t limit. The case considered corresponds to the term — at the lowest order in the coupling constant and with vacuum quantum number exchange in both t channels — of the amplitude which describes the interaction of a high energy quark with the two target quarks. The different leading cuts of the amplitude are shown to be proportional to one another with the same weights of the cutting rules derived in the context of multi-Pomeron exchange. The probabilistic picture of the multiple interactions, which originates from the cutting rules, and the self-shadowing cross sections are then discussed. The second part of the article deals with the semihard interactions. The semihard cross section in high energy nucleus–nucleus collisions is represented as a self-shadowing cross section, and a feature which is pointed out is that the single scattering factorized expression of the perturbative QCD parton model holds at any order in the multiparton correlations, the relation being the analog of the AGK cancellation for the average number of soft interactions in high energy hadron–nucleus collisions. Finally, an infrared problem which finds a solution within the self-shadowing representation of the semihard cross section is discussed.

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