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Predictions are made for elliptic flow in collisions of polarized deuterons with a heavy nucleus. It is shown that the eccentricity of the initial fireball, evaluated with respect to the deuteron polarization axis perpendicular to the beam…

Nuclear Theory · Physics 2018-11-21 Piotr Bozek , Wojciech Broniowski

In this paper we propose to thoroughly investigate asymmetric nuclear collisions both in the fixed target mode at the laboratory energy below 5 GeV per nucleon and in the collider mode with a center of mass energy below 11 GeV per nucleon.…

Nuclear Theory · Physics 2011-06-21 M. Bleicher , K. A. Bugaev , P. Rau , A. S. Sorin , J. Steinheimer , H. Stoecker

Heavy quark and charmonium production as well as their space-time evolution are studied in transport simulations of heavy-ion collisions at RHIC and LHC. In the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS)…

High Energy Physics - Phenomenology · Physics 2015-03-19 Jan Uphoff , Kai Zhou , Oliver Fochler , Zhe Xu , Carsten Greiner

The scenario of a collective expansion of matter created in proton-proton (p-p) collisions at the CERN Large Hadron Collider (LHC) is discussed. Assuming a small transverse size and a formation time of 0.1fm/c of the source we observe the…

Nuclear Theory · Physics 2011-03-17 Piotr Bozek

Using a model based on the Color Glass Condensate framework and the dilute-dense factorization, we systematically study the azimuthal angular correlations between a heavy flavor meson and a light reference particle in proton-nucleus…

High Energy Physics - Phenomenology · Physics 2020-08-19 Cheng Zhang , Cyrille Marquet , Guang-You Qin , Yu Shi , Lei Wang , Shu-Yi Wei , Bo-Wen Xiao

The collective interactions of many partons in the first stage of the collisions is the usual accepted explanation of the sizable elliptical flow. The clustering of color sources provides a framework of partonic interactions. In this…

High Energy Physics - Phenomenology · Physics 2014-11-18 I. Bautista , L. Cunqueiro , J. Dias de Deus , C. Pajares

We investigate the elliptic and the triangular flow of heavy mesons in ultrarelativistic heavy-ion collisions at RHIC and the LHC. The dynamics of heavy quarks is coupled to the locally thermalized and fluid dynamically evolving quark-gluon…

High Energy Physics - Phenomenology · Physics 2015-06-23 Marlene Nahrgang , Jörg Aichelin , Steffen Bass , Pol Bernard Gossiaux , Klaus Werner

The presence of correlations between particles significantly separated in pseudorapidity in proton-proton and proton-nucleus collisions revealed surprises in the early LHC data. Are the physical processes responsible for the observed…

Nuclear Experiment · Physics 2021-09-21 Georgios Konstantinos Krintiras

Within the framework of a multiphase transport (AMPT) model that includes both initial partonic and final hadronic interactions, we show that including mean-field potentials in the hadronic phase leads to a splitting of the elliptic flows…

Nuclear Theory · Physics 2012-04-10 Jun Xu , Lie-Wen Chen , Che Ming Ko , Zi-Wei Lin

Elliptical energy flow patterns in non-central Au(11.7AGeV) on Au reactions have been studied employing the RQMD model. The strength of these azimuthal asymmetries is calculated comparing the results in two different modes of RQMD (mean…

Nuclear Theory · Physics 2009-10-30 H. Sorge

We study transverse momentum anisotropies, in particular, the elliptic flow $v_2$ due to the interference effect sourced by valence quarks in high-energy hadron-hadron collisions. Our main formula is derived as the high-energy (eikonal)…

High Energy Physics - Phenomenology · Physics 2025-05-14 Meijian Li , Wenyang Qian , Bin Wu , Hong Zhang

In collisions between heavy nuclei, such as those at the Large Hadron Collider (LHC) at CERN, hydrodynamic models have successfully related measured azimuthal momentum anisotropies to the transverse shape of the collision region. For an…

High Energy Physics - Phenomenology · Physics 2024-09-25 Christian Bierlich , Peter Christiansen , Gösta Gustafson , Leif Lönnblad , Robin Törnkvist , Korinna Zapp

One of the fundamental questions in the field of subatomic physics is what happens to matter at extreme densities and temperatures as may have existed in the first microseconds after the Big Bang and exists, perhaps, in the core of dense…

Nuclear Experiment · Physics 2011-06-16 Raimond Snellings

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

Centrality, rapidity, and transverse momentum dependence of hadron elliptic flow is studied in Au+Au collisions at BNL RHIC energies within the microscopic quark-gluon string model. The QGSM predictions coincide well with the experimental…

Nuclear Theory · Physics 2009-11-07 E. E. Zabrodin , C. Fuchs , L. V. Bravina , Amand Faessler

Elliptic flow and HBT are studied for non-central relativistic nuclear collisions. Azimuthal asymmetries show up in both elliptic flow and HBT radii and are calculated in both collisionless and hydrodynamic limits relevant for peripheral…

Nuclear Theory · Physics 2009-07-09 H. Heiselberg , A. Levy

Hadron spectra and elliptic flow in high-energy heavy-ion collisions are studied within a (3+1)D ideal hydrodynamic model with fluctuating initial conditions given by the AMPT Monte Carlo model. Results from event-by-event simulations are…

Nuclear Theory · Physics 2012-09-20 Longgang Pang , Qun Wang , Xin-Nian Wang

In high energy nuclear collisions the leading parton of a jet can change flavor through interactions with the surrounding medium. This can considerably boost the relative yield of rare high momentum particles, like strange quarks and…

Nuclear Theory · Physics 2008-05-27 W. Liu , R. J Fries

Based on the (3+1)-dimensional hydrodynamic model, the space-time evolution of hot and dense nuclear matter produced in non-central relativistic heavy-ion collisions is discussed. The elliptic flow parameter v_2 is obtained by Fourier…

Nuclear Theory · Physics 2007-05-23 Tetsufumi Hirano

We perform the first study on asymmetric longitudinal decorrelations of elliptic, triangular and quadrangular flows in proton-nucleus collisions at the LHC and RHIC energies. To measure the longitudinal flow decorrelations for asymmetric…

High Energy Physics - Phenomenology · Physics 2021-10-19 Xiang-Yu Wu , Guang-You Qin