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Related papers: Schwinger Model and String Percolation in Hadron-H…

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In-medium effects on transverse-mass distributions of quarks and gluons are considered assuming a possible local equilibrium for colorless quark objects (mesons and baryons) created in central A-A collisions. It is shown that the average…

Nuclear Theory · Physics 2017-08-23 G. I. Lykasov , A. N. Sissakian , A. S. Sorin , V. D. Toneev

The observation of heavy-ion-like behaviour in pp collisions at the LHC suggests that more physics mechanisms are at play than traditionally assumed. The introduction e.g. of quark-gluon plasma or colour rope formation can describe several…

High Energy Physics - Phenomenology · Physics 2017-03-08 Nadine Fischer , Torbjörn Sjöstrand

A brief review of the string percolation model and its results are presented together with the comparison to experimental data. First, it is done an introduction to the quark-gluon phase diagram and the lattice results concerning the…

High Energy Physics - Phenomenology · Physics 2019-05-17 I. Bautista , C. Pajares , J. E. Ramírez

The observed limiting fragmentation of charged particle distributions in heavy ion collisions is difficult to explain as it does not apply to the proton spectrum itself. On the other hand, string percolation provides a mechanism to…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Brogueira , J. Dias de Deus , C. Pajares

A brief review to string and parton percolation is presented. After a short introduction, the main consequences of percolation of color sources on the following observables in A-A collisions: $J/\psi$ suppression, saturation of the…

High Energy Physics - Phenomenology · Physics 2009-01-07 C. Pajares

We propose a new criterium for saturation of the density of partons both in nucleons and nuclei. It is applicable to any multiple scattering model which would be used to compute the number of strings exchanged in $ep$ and $eA$ collisions.…

High Energy Physics - Phenomenology · Physics 2009-10-31 N. Armesto , C. A. Salgado

In a string picture of hadrons, spins are distributed over the whole configuration of string. According to this picture, spin of hadron is discussed in a dual gravity theory of QCD, towards realistic mass formulae of hadrons including…

High Energy Physics - Theory · Physics 2007-05-23 Akio Sugamoto

We study the transverse momentum spectra of J/psi and Upsilon mesons by using two methods: the two-component Erlang distribution and the two-component Schwinger mechanism. The results obtained by the two methods are compared and found to be…

High Energy Physics - Phenomenology · Physics 2016-01-06 Li-Na Gao , Fu-Hu Liu

In the framework of percolation of color sources, the transverse momentum distribution in heavy ion and $p+p$ collisions at all centralities and energies are shown to follow a universal behaviour. The width of the distribution depends on…

High Energy Physics - Phenomenology · Physics 2009-11-10 J. Dias de Deus , E. G. Ferreiro , C. Pajares , R. Ugoccioni

A class of simple superposition models based on the Glauber picture of multiple collisions is compared with the data on the centrality dependence of the multiplicity distributions in a central rapidity bin. We show how the results depend on…

High Energy Physics - Phenomenology · Physics 2010-12-23 K. Fialkowski , R. Wit

Hadron inclusive spectra in pp collisions are analyzed within the modified quark-gluon string model including both the longitudinal and transverse motion of quarks in the proton in the wide region of initial energies. The self-consistent…

High Energy Physics - Phenomenology · Physics 2015-05-27 V. A. Bednyakov , A. A. Grinyuk , G. I. Lykasov , M. Poghosyan

From existing hadron and heavy ion collisions data on \bar{p}/p central production we estimate the value of the percolation parameter at RHIC energies.

High Energy Physics - Phenomenology · Physics 2011-10-11 J. Dias de Deus , Yu. M. Shabelski

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

Long range correlations multiplicity-multiplicity, $p_T^2$-multiplicity and $p^2 - p^2_T$ are studied in the percolating colour string picture under different assumptions of the dynamics of string interaction. It is found that the strength…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. A. Braun , R. S. Kolevatov , C. Pajares , V. V. Vechernin

We present a simple model with string absorption and percolation to describe the J/psi suppression in heavy ion collisions. The NA50 data are fairly well explained by the model.

High Energy Physics - Phenomenology · Physics 2009-01-07 J. Dias de Deus , R. Ugoccioni , A. Rodrigues

Hadron dynamics is formulated in terms of interacting composite strings. Consistent composite string model with extended Virasoro superconformal symmetry is found. These composite strings carry flavour and chiral degrees of freedom on…

High Energy Physics - Theory · Physics 2008-09-19 V. A. Kudryavtsev

Hadron structure is considered in the frame of Strongly Correlated Quark Model (SCQM). It is shown that quark correlations result in fluctuations of hadronic matter distributions and single diffractive dissociation processes in hadronic…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Musulmanbekov

A transport model is developed to describe hadron emission from a strongly coupled quark-gluon plasma formed in relativistic heavy ion collisions. The quark-gluon plasma is controlled by ideal hydrodynamics, and the hadron motion is…

Nuclear Theory · Physics 2008-11-26 Hong Miao , Chongshou Gao , Pengfei Zhuang

The study of transverse-momentum spectra of quarks and gluons produced by the color electric flux tube decaying through the Schwinger tunneling mechanism is reviewed. The hints for a fast hydrodynamization in the ultra-relativistic…

Nuclear Theory · Physics 2016-05-16 Radoslaw Ryblewski

Based on the formalism presented in [1], we make a systematic study of spin polarizations of hadrons with different spins including vector mesons, spin-1/2 and spin-3/2 hyperons and spin correlations of hadron-hadron such as…

Nuclear Theory · Physics 2026-03-17 Ji-peng Lv , Zi-han Yu , Xiao-wen Li , Zuo-tang Liang