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Related papers: Correlations in ultra-relativistic nuclear collisi…

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Recently it has become apparent that event-by-event fluctuations in the initial state of hydrodynamical modelling of ultrarelativistic heavy-ion collisions are crucial in order to understand the full centrality dependence of the elliptic…

High Energy Physics - Phenomenology · Physics 2015-05-28 Thorsten Renk , Hannu Holopainen , Jussi Auvinen , Kari J. Eskola

The energy and centrality dependences of charged particle pseudorapidity density in relativistic nuclear collisions were studied using a hadron and string cascade model, JPCIAE. Both the relativistic $p+\bar p$ experimental data and the…

Nuclear Theory · Physics 2018-01-17 Ben-Hao Sa , A. Bonasera , Xu Cai , An Tai , Dai-Mei Zhou

Statistical fluctuations of the nuclear ground state energies are estimated using shell model calculations in which particles in the valence shells interact through well defined forces, and are coupled to an upper shell governed by random…

Nuclear Theory · Physics 2009-11-11 Victor Velazquez , Jorge G. Hirsch , Alejandro Frank , Jose Barea , Andres P. Zuker

We study the stability of superconducting strings in a U(1)_{local} x U(1)_{global} model coupled via a gauge field interaction term to U(1) Abelian-Higgs strings. The effect of the interaction on current stability is numerically…

High Energy Physics - Theory · Physics 2013-05-30 Alexandru Babeanu , Betti Hartmann

We study Cerenkov radiation from moving straight strings which glisse with respect to each other in such a way that the projected intersection point moves faster than light. To calculate this effect we develop classical perturbation theory…

High Energy Physics - Theory · Physics 2008-11-26 D. V. Gal'tsov , E. Yu. Melkumova , K. Salehi

We compute burst spectra and time structures arising from synchrotron and inverse Compton scattering by non-thermal electrons accelerated in shocks which form during the interaction between a thin ultra-relativistic fireball and a…

Astrophysics · Physics 2009-10-30 A. Panaitescu , P. Meszaros

The particle momentum anisotropy ($v_n$) produced in relativistic nuclear collisions is considered to be a response of the initial geometry or the spatial anisotropy $\epsilon_n$ of the system formed in these collisions. The linear…

We argue that two-step models, like String and Glasma models, with creation first of sources extended in rapidity that after locally decay into particles, lead to long range forward-backward correlations due to fluctuations in the number or…

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

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

We discuss radiative backreaction for global strings described by the Kalb-Ramond action with an analogous derivation to that for the point electron in classical electrodynamics. We show how local corrections to the equations of motion…

Astrophysics · Physics 2009-10-22 R. A. Battye , E. P. S. Shellard

We present an overview of selected aspects of ultrarelativistic nucleus-nucleus collisions, a research program devoted to the study of strongly interacting matter at high energy densities and in particular to the characterization of the…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Andronic , P. Braun-Munzinger

From the correlation structure of transverse momentum $p_t$ in relativistic nuclear collisions we observe for the first time temperature/velocity structure resulting from low-$Q^2$ partons. Our novel analysis technique does not invoke an…

High Energy Physics - Phenomenology · Physics 2009-11-11 Thomas A Trainor , Duncan J Prindle

A comparison is made between results obtained using smooth initial conditions and event-by-event initial conditions in the hydrodynamical description of relativistic nuclear collisions. Some new results on directed flow are also included.

We show that non-conventional statistical effects (due to the presence of long range forces, memory effects, correlations and fluctuations) can be very relevant in the interpretation of the experimental observables in relativistic…

Nuclear Theory · Physics 2017-08-23 W. M. Alberico , A. Lavagno , P. Quarati

We consider radiative backreaction for global strings using the Kalb-Ramond formalism. In analogy to the point electron in classical electrodynamics, we show how local radiative corrections to the equations of motion allow one to remove the…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. A. Battye , E. P. S. Shellard

Recent results on event-by-event mean transverse momentum, $\mpt$, fluctuations in ultra-relativistic heavy ion collisions are briefly reviewed. We conclude that the observed fluctuations are in a rough agreement with that expected for the…

Nuclear Theory · Physics 2007-05-23 Sergei A. Voloshin

Using the correspondence between gauge theories and string theory in curved backgrounds, we investigate aspects of the large $N$ limit of non-commutative gauge theories by considering gravity solutions with $B$ fields. We argue that the…

High Energy Physics - Theory · Physics 2009-10-31 Juan M. Maldacena , Jorge G. Russo

Particle correlations are very actively studied in heavy-ion collisions at ultra-relativistic energies. Here, an attempt is made at determining a proper reference for such studies, by taking properly into account the multiparticle…

Nuclear Theory · Physics 2008-11-26 Nicolas Borghini

The dynamics of gluons and quarks in a relativistic nuclear collision are described, within the framework of a classical mean-field transport theory, by the coupled equations for the Yang-Mills field and a collection of colored point…

Nuclear Theory · Physics 2015-06-26 W. Poeschl , B. Mueller

We consider losses in collisions of ultracold molecules described by a simple statistical short-range model that explicitly accounts for the limited lifetime of classically chaotic collision complexes. This confirms that thermally sampling…

Atomic Physics · Physics 2021-11-05 Arthur Christianen , Gerrit C. Groenenboom , Tijs Karman