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We discuss the multiplicity distribution for highest accessible energies of $pp$- and $\bar pp$- interactions from the point of view of the multiparton collisions. The inelastic cross sections for the single, $\sigma_1$, and multiple…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. G. Matinyan , W. D. Walker

A model of independent pair parton interactions is proposed, according to which, hadron interactions are represented by a set of independent binary parton collisions. The final multiplicity distribution is described by a convolution of the…

High Energy Physics - Phenomenology · Physics 2011-07-19 I. M. Dremin , V. A. Nechitailo

We recall the main features of the Regge approach used to understand soft interactions at LHC and higher energies. Unitarity tames the power growth of the elastic proton-proton scattering amplitude with energy, and leads to the migration of…

High Energy Physics - Phenomenology · Physics 2009-10-09 M. G. Ryskin , A. D. Martin , V. A. Khoze , A. G. Shuvaev

The HBT radii extracted in p-pbar and pp collisions at SPS and Tevatron show a clear correlation with the charged particle rapidity density. We propose to explain the correlation using a simple model where the distance from the initial hard…

High Energy Physics - Phenomenology · Physics 2009-11-11 Guy Paic , Piotr Krzysztof Skowronski

At the LHC energies, the underlying observables are of major topic of interest in high multiplicity $p+p$ collisions. Multiple Parton Interactions (MPI) is one of them, in which several interactions occur in a single $p+p$ collision. It is…

High Energy Physics - Phenomenology · Physics 2018-10-08 Raghunath Sahoo , Dhananjaya Thakur , Sudipan De , Soumya Dansana

We examine present data for double parton scattering at LHC and discuss their energy dependence from its earliest measurements at the ISR. Different models for the effective cross-section are considered and their behavior studied for a…

High Energy Physics - Phenomenology · Physics 2019-11-18 Giulia Pancheri , Agnes Grau , Simone Pacetti , Yogendra N. Srivastava

We emphasize the sizeable effects of absorption on high-energy `soft' processes, and, hence, the necessity to include multi-Pomeron-Pomeron interactions in the usual multi-channel eikonal description. We present a model which includes a…

High Energy Physics - Phenomenology · Physics 2009-03-24 M. G. Ryskin , A. D. Martin , V. A. Khoze

We propose a new parton model and demonstrate that the model describes the relevant experimental data at high energies. The model is based on Pomeron calculus in 1+1 space-time dimensions, as suggested in Ref. [18] and on simple assumptions…

High Energy Physics - Phenomenology · Physics 2019-03-27 E. Gotsman , E. Levin , I. Potashnikova

We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_sat, by…

High Energy Physics - Phenomenology · Physics 2012-02-23 A. D. Martin , V. A. Khoze , M. G. Ryskin

In this paper we present a two channel model with the goal of reproducing the soft scattering data available in the ISR-Tevatron energy range, and extend the model results to LHC and Cosmic Rays energies. A characteristic feature of the…

High Energy Physics - Phenomenology · Physics 2007-11-05 E. Gotsman , E. Levin , U. Maor

The process of soft diffractive dissociation in hadronic collisions is discussed in the framework of the Miettinen-Pumplin model. A good description of the data in the ISR-Tevatron energy range is found. Predictions for the total, elastic…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Sapeta

Multiple interactions of quarks and gluons in high-energy heavy-ion collisions may give rise to interesting phemomena of color charges propagating in high-density QCD matter. We study the dynamics of multi-parton systems produced in…

Nuclear Theory · Physics 2009-10-31 Dinesh K. Srivastava , Klaus Geiger

We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_sat, by…

High Energy Physics - Phenomenology · Physics 2011-10-11 A. D. Martin , M. G. Ryskin , V. A. Khoze

We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_{sat}, by…

High Energy Physics - Phenomenology · Physics 2015-05-28 M. G. Ryskin , A. D. Martin , V. A. Khoze

A new approach to phenomenological description of the charged particle multiplicity distributions in proton-(anti)proton and electron-positron collisions is presented. The observed features of the data are interpreted on the basis of…

High Energy Physics - Phenomenology · Physics 2011-06-24 I. Zborovský

Charged particles production in the electron-positron, pbarp and pp collisions in full phase space as well as in the restricted phase space slices, at high energies are described with predictions from shifted Gompertz distribution, a model…

High Energy Physics - Phenomenology · Physics 2018-11-06 R. Chawla , M. Kaur

Soft QCD contributes to all observables at the LHC, due to the presences of underlying event (UE) and pile-up in all events. Both these processes are dominated by multi-parton interactions (MPI), i.e. the result of proton collisions…

High Energy Physics - Phenomenology · Physics 2011-12-26 Andy Buckley

Soft pp interactions are considered in the framework of the phenomenological model with color strings formation. Under the assumption, that the elementary collision is realized as interaction of two color dipoles, the total inelastic cross…

High Energy Physics - Phenomenology · Physics 2013-10-23 V. N. Kovalenko

A brief survey of theoretical approaches to description of multiplicity distributions in high energy processes is given. It is argued that the multicomponent nature of these processes leads to some peculiar characteristics observed…

High Energy Physics - Phenomenology · Physics 2009-11-10 I. M. Dremin

We investigate the multiplicity dependence of the transverse momentum $p_T$ spectra of hadrons produced in high-energy collisions. We propose that the partonic distribution be parameterized by its non-extensive entropy and the parton…

High Energy Physics - Phenomenology · Physics 2024-07-10 L. S. Moriggi , G. S. Ramos , M. V. T. Machado
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