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We use the string melting version of a multi-phase transport (AMPT) model to study Cu+Au collisions at $\sqrt{s_{NN}}=200$ GeV. The rapidity distributions of identified hadrons show asymmetric dependences on rapidity. In addition, elliptic…

High Energy Physics - Phenomenology · Physics 2020-05-20 Yuncun He , Zi-Wei Lin

High-p_T pion and kaon production is studied in relativistic proton-proton, proton-nucleus, and nucleus-nucleus collisions in a wide energy range. Cross sections are calculated based on perturbative QCD, augmented by a phenomenological…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. Zhang , G. Fai , G. Papp , G. G. Barnafoldi , P. Levai

The space-time propagation of heavy quarks in ultra-relativistic heavy ion collisions is studied within the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). In this model heavy quarks interact with the…

High Energy Physics - Phenomenology · Physics 2011-08-25 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

We present the detail of a newly developed relativistic transport model (ART 1.0) for high energy heavy-ion collisions. Using this model, we first study the general collision dynamics between heavy ions at the AGS energies. We then show…

Nuclear Theory · Physics 2009-09-25 Bao-An Li , Che Ming Ko

We present various order moments (Variance ($\sigma^2$), Skewness($S$), Kurtosis($\kappa$)) of net-proton multiplicity distributions in Au+Au collisions from the first phase of RHIC beam energy scan ({\sNN}=7.7$-$200 GeV). The measurements…

Nuclear Experiment · Physics 2019-08-13 Xiaofeng Luo

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

Within a relativistic transport (ART) model for heavy-ion collisions, we show that the recently observed characteristic change from out-of-plane to in-plane elliptic flow of protons in mid-central Au+Au collisions as the incident energy…

Nuclear Theory · Physics 2009-10-31 Bao-An Li , C. M. Ko , Andrew T. Sustich , Bin Zhang

The results on the main bulk observables obtained in the simulations within the integrated hydrokinetic model (iHKM) of Au+Au collisions at the RHIC energy $\sqrt{s_{NN}}=200$ GeV are presented along with the corresponding experimental data…

High Energy Physics - Phenomenology · Physics 2019-06-26 M. D. Adzhymambetov , V. M. Shapoval , Yu. M. Sinyukov

Within a multi-phase transport (AMPT) model with the string melting mechanism and imported initial electric quadrupole moment, the difference between the elliptic flow of positive and negative pions is calculated. The slope parameter $r$ of…

Nuclear Theory · Physics 2014-07-09 Guo-Liang Ma

Azimuthal distributions of radial velocities of charged hadrons produced in nucleus-nucleus $(AB)$ collisions are compared with the corresponding azimuthal distribution of charged hadron multiplicity in the framework of a multiphase…

Nuclear Theory · Physics 2018-04-24 Soumya Sarkar , Provash Mali , Somnath Ghosh , Amitabha Mukhopadhyay

Fully dynamic simulations of heavy ion collisions at RHIC and at LHC energies within the perturbative QCD-based partonic transport model BAMPS (Boltzmann Approach to Multi-Parton Scatterings) are presented, focusing on the simultaneous…

High Energy Physics - Phenomenology · Physics 2015-05-28 Oliver Fochler , Jan Uphoff , Zhe Xu , Carsten Greiner

With the string melting version of a multiphase transport(AMPT) model, we analyze the transverse momentum dependence of HBT radius $R_{\rm s}$ and the single-pion transverse angle distribution in central Au+Au collisions at…

Nuclear Theory · Physics 2021-10-27 Hang Yang , Qichun Feng , Yanyv Ren , Jingbo Zhang , Lei Huo

In heavy-ion collisions, understanding how light nuclei species are produced can provide insight into the nature of hadronic interactions in extreme conditions. It can also shed light on understanding the matter-antimatter asymmetry and…

High Energy Physics - Phenomenology · Physics 2023-12-01 Yoshini Bailung , Neha Shah , Ankhi Roy

Systematic comparisons of jetlike correlation data to radiative and collisional energy loss model calculations are essential to extract transport properties of the quark-gluon medium created in relativistic heavy ion collisions. This paper…

Nuclear Theory · Physics 2017-08-01 Terrence Edmonds , Qingfeng Li , Fuqiang Wang

We present results on spectra of pions, kaons and (anti)protons from a study of heavy ion collisions using the perturbative QCD + saturation model to calculate the production of initial (transverse) energy and baryon number followed by a…

Nuclear Theory · Physics 2009-11-07 K. J. Eskola , H. Niemi , P. V. Ruuskanen , S. S. Rasanen

The Multi-Phase Transport model (AMPT) is used to study the effects of the parton-scattering cross-sections ($\sigma_{pp}$) and hadronic re-scattering on the linear contributions to the flow harmonic $\textit{v}_{4}$, the non-linear…

Nuclear Theory · Physics 2021-11-15 Niseem Magdy

The moments and moment products of conserved charges are believed to be sensitive to critical fluctuations, which have been adopted in determining the QCD critical point. Using a dynamical multiphase transport model, we reproduce the…

Nuclear Theory · Physics 2021-07-21 Ling Huang , Guo-Liang Ma

In this study, the intermittency behavior of emitted particles produced in heavy ion collisions has been studied using both modes (default $\&$ string melting) of A Multi Phase Transport (AMPT) model-generated data. We adopted one of the…

High Energy Physics - Phenomenology · Physics 2025-01-10 Somen Gope , Supriya Das , Saikat Biswas

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

Perturbative QCD results on pion production are presented in proton-proton, proton-nucleus and nucleus-nucleus collisions from CERN SPS up to RHIC energy. A K_{jet}(s, p_T, Q) factor obtained from jet production is applied to perform…

Nuclear Theory · Physics 2017-08-23 G. G. Barnafoldi , P. Levai , G. Papp , G. Fai , Y. Zhang