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We present the elliptic flow ($v_{2}$) of light nuclei at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. The results are measured in the STAR experiment at RHIC. The $v_{2}$ measurement for light nuclei as a function of…

Nuclear Experiment · Physics 2019-08-13 Chitrasen Jena

Hydrodynamic models fail to describe the near-equal $v_2/v_3$ ratio observed in ultra-central heavy-ion collisions, despite their success in other centrality classes. This discrepancy stems from shear viscosity suppressing higher-order…

Nuclear Theory · Physics 2025-04-29 Qi Wang , Long-Gang Pang , Xin-Nian Wang

We present measurements of pion elliptic flow ($v_2$) in Au+Au collisions at $\sNN =$ 200, 62.4, 39, 27 and 19.6 GeV, as a function of event-by-event charge asymmetry ($A_{\pm}$), based on data from the STAR experiment at RHIC. We find that…

Nuclear Experiment · Physics 2019-08-13 Gang Wang

Fluctuations in the initial geometry of a nucleus-nucleus collision have been recently shown to result in a new type of directed flow (v_1) that, unlike the usual directed flow, is also present at midrapidity. We compute this new v_1 versus…

Bulk nuclear structure properties, such as radii and deformations, leave distinct signatures in the final state of relativistic heavy-ion collisions. Isobaric collisions offer an easy route to establish explicit connections between the…

Nuclear Theory · Physics 2023-07-26 Jiangyong Jia , Giuliano Giacalone , Chunjian Zhang

We develop a new integrated dynamical model to investigate the effects of the hydrodynamic fluctuations on observables in high-energy nuclear collisions. We implement hydrodynamic fluctuations in a fully 3-D dynamical model consisting of…

Nuclear Theory · Physics 2016-11-23 Koichi Murase , Tetsufumi Hirano

Corrections to a mean number of droplets appeared in the process of nucleation have been analyzed. The two stage model with a fixed boundary can not lead to a write result. The multi stage generalization of this model also can not give…

Statistical Mechanics · Physics 2007-05-23 Victor Kurasov

Using a more reasonable separate density-dependent scenario instead of the total density-dependent scenario for in-medium $nn$, $pp$ and $np$ interactions, we examine effects of differences of in-medium nucleon-nucleon interactions in two…

Nuclear Theory · Physics 2020-08-24 Gao-Feng Wei , Chang Xu , Wei Xie , Qi-Jun Zhi , Shi-Guo Chen , Zheng-Wen Long

Recent studies have shown that the shape and radial profile of the colliding nuclei have strong influences on the initial condition of the heavy ion collisions and the subsequent development of the anisotropic flow. Using A Multi-Phase…

Nuclear Theory · Physics 2023-11-29 Zhiyong Lu , Mingrui Zhao , Jiangyong Jia , You Zhou

We apply principal component analysis to the study of event-by-event fluctuations in relativistic heavy-ion collisions. This method brings out all the information contained in two-particle correlations in a physically transparent way. We…

Nuclear Theory · Physics 2015-04-20 Rajeev S. Bhalerao , Jean-Yves Ollitrault , Subrata Pal , Derek Teaney

Decorrelation of the elliptic flow in rapidity is calculated within a hybrid approach which includes event-by-event viscous fluid dynamics and final state hadronic cascade model. The simulations are performed for Au+Au collisions at…

Nuclear Theory · Physics 2021-08-04 Jakub Cimerman , Iurii Karpenko , Boris Tomášik , Barbara Antonina Trzeciak

The collision smearing of the nucleon momenta about their initial values during relativistic nucleus-nucleus collisions is investigated. To a certain degree, our model belongs to the transport type, and we investigate the evolution of the…

Nuclear Theory · Physics 2013-03-26 D. Anchishkin , V. Naboka , J. Cleymans

The inclusion of massive neutrinos affects the cross sections involved in the formation of heavy nuclei, modifying their abundances. Rapid neutron capture processes (r-process) are often associated with explosive events such as…

High Energy Physics - Phenomenology · Physics 2018-09-10 M. M. Saez , M. E. Mosquera , O. Civitarese

Predictions on fluctuations of hadron production properties in central heavy ion collisions are presented. They are based on the Statistical Model of the Early Stage and extend previously published results by considering the strongly…

High Energy Physics - Phenomenology · Physics 2016-09-21 R. V. Poberezhnyuk , M. I. Gorenstein , M. Gazdzicki

We analyse the effect of quenched uncorrelated randomness coupling to the local energy density of a model consisting of N coupled two-dimensional Ising models. For N>2 the pure model exhibits a fluctuation-driven first order transition,…

Condensed Matter · Physics 2016-08-31 John Cardy

Although elastic scattering of nucleons may look like a simple process, it presents a long-lasting challenge for theory. Due to missing hard energy scale, the perturbative QCD can not be applied. Instead, many phenomenological/theoretical…

Computational Physics · Physics 2014-02-11 Jan Kašpar

We overview the current status and recent developments on initial conditions in ultra-relativistic nucleus-nucleus collisions. Specifically, we look at the progress in understanding the role of sub-nucleonic fluctuations in large and small…

Nuclear Theory · Physics 2019-02-20 Aleksas Mazeliauskas

Anisotropic flow and fluctuations are sensitive observables of the initial state effects in heavy ion collisions and are characterized by the medium properties and final state interactions. Using event-shape observables, one can constrain…

Nuclear Theory · Physics 2025-07-29 Suraj Prasad , Aswathy Menon K R , Raghunath Sahoo , Neelkamal Mallick

Initial partonic eccentricities in Au+Au collisions at center-of-mass energy $\sqrt{s_{NN}}$ = 200 GeV are investigated using a multi-phase transport model with string melting scenario. The initial eccentricities in different order of…

Nuclear Theory · Physics 2017-06-06 L. Ma , G. L. Ma , Y. G. Ma

We use a general circulation model to study the three-dimensional (3-D) flow and temperature distributions of atmospheres on tidally synchronized extrasolar planets. In this work, we focus on the sensitivity of the evolution to the initial…

Earth and Planetary Astrophysics · Physics 2015-05-18 Heidar Th. Thrastarson , James Y-K. Cho
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