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Related papers: Azimuthal flow in hadron collisions from quark-glu…

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The increase of effective string tension as a result of the hard gluon kinks on a string is investigated using a parametrization form. In this form the effective string tension increasing with energies in hadron-hadron collisions is due to…

Nuclear Theory · Physics 2015-06-26 Tai An , Sa Ben-Hao

Two particle azimuthal correlation functions are presented for charged hadrons produced in Au + Au collisions at RHIC sqrt(s_NN) = 130 GeV. The measurements permit determination of elliptic flow without event-by-event estimation of the…

Nuclear Experiment · Physics 2008-11-26 K. Adcox , PHENIX Collaboration

We study the formation of cosmic strings by confining a stochastic magnetic field into flux tubes in a numerical simulation. We use overdamped evolution in a potential that is minimized when the flux through each face in the simulation…

High Energy Physics - Theory · Physics 2008-11-26 Jose J. Blanco-Pillado , Ken D. Olum , Alexander Vilenkin

The longitudinal long-range correlations of the triangular flow event plane angles are calculated in a Boltzmann + hydrodynamics hybrid approach. The potential to disentangle different energy deposition scenarios is explored by utilizing…

Nuclear Theory · Physics 2013-05-29 Hannah Petersen , Carsten Greiner , Vivek Bhattacharya , Steffen A. Bass

In the fragmentation of a color flux tube in high-energy $pp$ collisions or $e^+$-$e^-$ annihilations, the production of $q$-$\bar q$ pairs along a color flux tube precedes the fragmentation of the tube. The local conservation laws in the…

High Energy Physics - Phenomenology · Physics 2018-01-09 Cheuk-Yin Wong

The process of baryon number transfer due to string junction propagation in rapidity space is considered. It leads to a significant effect in the net baryon production in pA collisions at mid-rapidities and an even more significant effect…

High Energy Physics - Phenomenology · Physics 2012-07-30 F. W. Bopp , Yu. M. Shabelski

We study the system of axion strings that forms in the early Universe if the Peccei-Quinn symmetry is restored after inflation. Using numerical simulations, we establish the existence of an asymptotic solution to which the system is…

High Energy Physics - Phenomenology · Physics 2018-08-15 Marco Gorghetto , Edward Hardy , Giovanni Villadoro

We consider wake-like density fluctuations produced by cosmic strings at the quark-hadron transition in the early universe. We show that low momentum axions which are produced through the radiation from the axionic string at an earlier…

High Energy Physics - Phenomenology · Physics 2009-11-11 Biswanath Layek

Beyond the attractive strong potential needed for hadronic bound states, strong interactions are predicted to provide repulsive forces depending on the color charges involved. The repulsive interactions could in principle serve for particle…

High Energy Physics - Phenomenology · Physics 2017-06-27 Martin Erdmann , Christian Glaser , Thorben Quast

We use a Monte Carlo approach to study hadron azimuthal angular correlations in high energy proton-proton and central nucleus-nucleus collisions at the BNL Relativistic Heavy Ion Collider (RHIC) energies at mid-rapidity. We build a hadron…

High Energy Physics - Phenomenology · Physics 2015-06-05 Alejandro Ayala , Isabel Dominguez , Jamal Jalilian-Marian , J. Magnin , Maria Elena Tejeda-Yeomans

The ridge signal, which is long-ranged in rapidity, in the di-hadron correlations in high-multiplicity p-p and p-A collisions opened up a whole new research area in high-energy QCD. Although the ridge had been observed in A-A collisions and…

High Energy Physics - Phenomenology · Physics 2017-12-18 Şener Özönder

Strings at T ~ T_c are known to be subject to the so-called Hagedorn phenomenon, in which a string's entropy (times T) and energy cancel each other and result in the evolution of the string into highly excited states, or "string balls".…

High Energy Physics - Phenomenology · Physics 2014-07-30 Tigran Kalaydzhyan , Edward Shuryak

It has been argued that high-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena usually studied in the context of heavy-ion collisions, such as elliptic flow. We study this issue using DIPSY - a Monte Carlo…

High Energy Physics - Phenomenology · Physics 2011-08-17 Emil Avsar , Christoffer Flensburg , Yoshitaka Hatta , Jean-Yves Ollitrault , Takahiro Ueda

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

Quantum string, which was brought into discussion recently as a model for the stripe phase in doped cuprates, is simulated by means of the density-matrix-renormalization-group method. String collides with adjacent neighbors, as it wonders,…

Superconductivity · Physics 2009-11-07 Yoshihiro Nishiyama

The scaling properties of elliptic flow of hadrons produced in ultrarelativistic heavy-ion collisions are investigated at low transverse momenta, $p_T\lsim 2$\,GeV. Utilizing empirical parameterizations of a thermalized fireball with…

Nuclear Theory · Physics 2014-11-21 Min He , Rainer J. Fries , Ralf Rapp

I present an overview of the ridge phenomenon in proton-proton and proton-lead collisions. This novel collimation between rapidity separated hadron pairs is a consequence of non-linear gluon dynamics within the small-x wave-function of the…

High Energy Physics - Phenomenology · Physics 2013-05-06 Kevin Dusling

Collective anisotropic particle flow, a general phenomenon present in relativistic heavy-ion collisions, can be separated from direct particle-particle correlations of different physics origin by virtue of its specific azimuthal pattern. We…

Nuclear Experiment · Physics 2009-11-10 J. Bielcikova , S. Esumi , K. Filimonov , S. Voloshin , J. P. Wurm

Non-ideal fluid dynamics with cylindrical symmetry in transverse direction and longitudinal scaling flow is employed to simulate the space-time evolution of the quark-gluon plasma produced in heavy-ion collisions at RHIC energies. The…

Nuclear Theory · Physics 2007-05-23 Azwinndini Muronga , Dirk H. Rischke

We use (3+1)-dimensional hydrodynamics with exact longitudinal boost-invariance to study the influence of collision centrality and initial energy density on the transverse flow pattern and the angular distributions of particles emitted near…

High Energy Physics - Phenomenology · Physics 2009-10-09 Peter F. Kolb , Josef Sollfrank , Ulrich Heinz