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Production of pions in high-energy collisions with nuclei in the kinematics prohibited for free nucleons ("cumulative pions") is studied in the fusing color string model.The model describes the so-called direct mechanism for cumulative…

High Energy Physics - Phenomenology · Physics 2023-03-31 M. A. Braun

The forward-backward correlations in the $p_T$ distributions, which present a clear signature of non-linear effects in particle production, are studied in the model of percolating colour strings. Quantitative predictions are given for these…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. A. Braun , C. Pajares

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

In the colour string model the impact of string percolation on multiplicities, their long-range correlations and average transverse momentum is studied. The multiplicities are shown to be damped by a simple factor which follows from the…

High Energy Physics - Phenomenology · Physics 2011-09-13 M. A. Braun , C. Pajares

Multiparticle production at high energies is described in terms of color strings stretched between the projectile and target. As the string density increases, overlap in the transverse plane leads to cluster formation. At some critical…

Nuclear Experiment · Physics 2008-11-26 Terence Tarnowsky , Rolf Scharenberg , Brijesh Srivastava

A brief introduction of the relationship of string percolation to the Quantum Chromo Dynamics (QCD) phase diagram is presented. The behavior of the Polyakov loop close to the critical temperature is studied in terms of the color fields…

Nuclear Theory · Physics 2015-12-22 M. A. Braun , J. Dias de Deus , A. S. Hirsch , C. Pajares , R. P. Scharenberg , B. K. Srivastava

We show that the dependence of the charged particle multiplicity on the centre-of-mass energy of the collision is, in the String Percolation Model, driven by the same power law behavior in both proton-proton and nucleus- nucleus collisions.…

Nuclear Theory · Physics 2015-06-04 Irais Bautista , Jorge Dias de Deus , José Guilherme Milhano , Carlos Pajares

The string breaking model of particle production is extended in order to help explain the transverse momentum distribution in elementary collisions. Inspired by an idea of Bialas', we treat the string using a collective coordinate approach.…

Nuclear Theory · Physics 2009-11-11 Steven Steinke , Johann Rafelski

It has been shown that a hot and dense deconfined nuclear matter state produced in ultra-relativistic heavy-ion collisions, can be quantitatively described by the String Percolation phenomenological model. The model address the phase…

Statistical Mechanics · Physics 2017-07-25 J. E. Ramírez , A. Fernández Téllez , I. Bautista

In models for hadron collisions based on string hadronization, the strings are usually treated as independent, allowing no interaction between the confined colour fields. In studies of nucleus collisions it has been suggested that strings…

High Energy Physics - Phenomenology · Physics 2015-02-16 Christian Bierlich , Gösta Gustafson , Leif Lönnblad , Andrey Tarasov

We argue that the shape of the system-size dependence of strangeness production in nucleus-nucleus collisions can be understood in a picture that is based on the formation of clusters of overlapping strings. A string percolation model…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. Hoehne , F. Puehlhofer , R. Stock

Multiparticle production at high energies is described in terms of color strings stretched between the projectile and target. As string density increases, overlap among the strings leads to cluster formation. At some critical density a…

Nuclear Experiment · Physics 2008-11-26 Terence J. Tarnowsky , Brijesh K. Srivastava , Rolf P. Scharenberg

An essential prerequisite for quark-gluon plasma production in nuclear collisions is cross-talk between the partons from different nucleons in the colliding nuclei. The initial density of partons is determined by the parton distribution…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Satz

In most of the models of hadronic collisions the number of exchanged colour strings grows with energy and atomic numbers of the projectile and target. At high string densities interaction between them should melt them into the quark-gluon…

High Energy Physics - Phenomenology · Physics 2009-10-30 M. A. Braun , C. Pajares , J. Ranft

We calculate production cross sections of a single rotating string from a collision of two light states in bosonic string theory. We find that the cross sections are written in terms of the modified Bessel function of the first kind with…

High Energy Physics - Theory · Physics 2008-11-26 Tsunehide Kuroki , Toshihiro Matsuo

In AA collisions fusion and percolation of colour strings is studied at fixed rapidity $y$. Distribution of strings in rapidity is obtained from the observed rapidity spectra in pp collisions. For $y$-dependence of multiplicities in Au-Au…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. A. Braun , C. Pajares

It is shown that the multiplicity distribution associated to self-shadowing events satisfies an universal equation in terms of the minimum bias distribution. The number of elementary collisions, basic in the structure of any multiple…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. Pajares , C. A. Salgado , E. G. Ferreiro

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

It is shown that different ways of interacting strings formed in high energy nucleus-nucleus collisions cause a different strength of the chaoticity parameter lambda of Bose-Einstein correlations. In particular, in the case of percolation…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. A. Braun , F. del Moral , C. Pajares
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