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The number of constituent quark (NCQ) scaling behavior of elliptic flow has been systematically studied at the LHC energy within the framework of a multiphase transport model (AMPT) in this work. We find that the parameters used to generate…

Nuclear Theory · Physics 2017-06-16 Liang Zheng , Hui Li , Hong Qin , Qi-Ye Shou , Zhong-Bao Yin

We argue that measurements of identified-particle elliptic flow in a wide energy range could shed light on the possible phase change in high-energy heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC). When the…

Nuclear Theory · Physics 2009-09-28 J. Tian , J. H. Chen , Y. G. Ma , X. Z. Cai , F. Jin , G. L. Ma , S. Zhang , C. Zhong

Transverse spherocity is an event shape observable, which separates the events based on their geometrical shapes. In this work, we use transverse spherocity to study the identified light flavor production in heavy-ion collisions using A…

High Energy Physics - Phenomenology · Physics 2022-06-16 Neelkamal Mallick , Sushanta Tripathy , Raghunath Sahoo

Two particle correlations have been used extensively to study hydrodynamic flow patterns in heavy-ion collisions. In small collision systems, such as $p$$+$$p$ and $p$$+$$A$, where particle multiplicities are much smaller than in $A$$+$$A$…

Nuclear Theory · Physics 2019-11-13 S. H. Lim , Q. Hu , R. Belmont , K. K. Hill , J. L. Nagle , D. V. Perepelitsa

Quantum Chromodynamics predicts a phase transition from ordinary hadronic matter to the quark-gluon plasma (QGP) at high temperatures and energy densities, where quarks and gluons (partons) are not confined within hadrons. The QGP is…

Nuclear Experiment · Physics 2024-11-15 ALICE Collaboration

An attempt has been made to estimate the minimum size of the de-confined matter of Quark-Gluon Plasma (QGP) in small systems like p-Pb system that could be satisfactorily modeled with low-order hydrodynamics. The variation of second order…

High Energy Physics - Phenomenology · Physics 2026-05-27 Nikhil Hatwar , Sadhana Dash , Basanta Kumar Nandi

Using a partonic transport model based on the 3-flavor Nambu-Jona-Lasinio model and a relativistic hadronic transport model to describe, respectively, the evolution of the initial partonic and the final hadronic phase of heavy-ion…

Nuclear Theory · Physics 2014-01-15 Jun Xu , Taesoo Song , Che Ming Ko , Feng Li

The elliptic azimuthal anisotropy coefficient ($v_{2}$) of the identified particles at midrapidity ($|\eta|<0.8$) was investigated in p--Pb collisions at $\sqrt{s_\mathrm{NN}}=$ 5.02 TeV using a multi-phase transport model (AMPT). The…

High Energy Physics - Phenomenology · Physics 2024-04-01 Siyu Tang , Liang Zheng , Xiaoming Zhang , Renzhuo Wan

Elliptic flow has been one of the key observables for establishing the finding of the quark-gluon plasma (QGP) at the highest energies of Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). As a sign of collectively…

Nuclear Theory · Physics 2015-06-17 Jussi Auvinen , Hannah Petersen

Differential elliptic flow $v_2(p_{T})$ for identified hadrons has been investigated in the FAIR energy regime, employing a hadronic-string transport model (UrQMD) as well as a partonic transport model (AMPT). It has been observed that both…

High Energy Physics - Phenomenology · Physics 2014-11-20 Partha Pratim Bhaduri , Subhasis Chattopadhyay

The mid-rapidity transverse momentum spectra of hadrons and the available rapidity distributions of the strange hadrons produced in p-p collisions at LHC energy root(snn) = 0.9 TeV and root(snn)= 7.0 TeV have been studied using a unified…

Nuclear Theory · Physics 2016-11-15 Inam-ul Bashir , Saeed Uddin

A study of elliptic flow of open charm mesons, $D^0$ and $D_S ^\pm$ using quark coalescence as a mechanism of hadronization of heavy quarks implemented in conjunction with A Multi Phase Transport (AMPT) model has been presented. We have…

Nuclear Theory · Physics 2017-04-05 Roli Esha , Md. Nasim , Huan Zhong Huang

During the LHC Run-2, ALICE has collected data from Pb$-$Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV. The centrality dependence of identified particle production, including elliptic ($v_{2}$) and higher harmonic flow coefficients…

Nuclear Experiment · Physics 2018-06-21 Nicolò Jacazio

Elliptic flow is a hallmark of collectivity in hadronic collisions. Its measurement relies on analysis techniques which require high event multiplicity and could be applied so far to heavy ion collisions only. Here, we delineate the…

High Energy Physics - Phenomenology · Physics 2010-04-06 Jorge Casalderrey-Solana , Urs Achim Wiedemann

Using the VISHNU hybrid model that couples (2+1)-dimensional viscous hydrodynamics to a microscopic hadronic transport model, we calculate the multiplicity, p_T spectra and elliptic flow for pions, kaons, and protons in 2.76 A TeV Pb+Pb…

Nuclear Theory · Physics 2014-04-14 Huichao Song , Steffen Bass , Ulrich W. Heinz

In this paper, we investigate the hydrodynamic collectivity in high-multiplicity events of proton-proton collisions at $\sqrt{s}=$ 13 TeV, using iEBE-VISHNU hybrid model with three different initial conditions, namely, HIJING, super-MC and…

Nuclear Theory · Physics 2020-10-28 Wenbin Zhao , You Zhou , Koichi Murase , Huichao Song

In high energy heavy ion collisions a new state of matter, the strongly coupled quark gluon plasma is formed that exhibits the similar properties as our Universe had just a couple of microseconds after the Big Bang, hence such collisions…

High Energy Physics - Phenomenology · Physics 2025-07-15 Sándor Lökös , Gábor Kasza

We report the observation of partonic radial collectivity in Au+Au collisions at $\sqrt{s_{\rm NN}} = 200$~GeV via the $p_{\rm T}$-differential flow observable $v_{0}(p_{\rm T})$ using the \texttt{AMPT} String Melting model. For inclusive…

Nuclear Experiment · Physics 2026-02-25 Rohit Agarwala , Dipankar Basak , Kalyan Dey

The major goal of high-energy heavy-ion collisions is to study the properties of the deconfined quark gluon plasma (QGP), such as partonic collectivity. The collective motion of constituent quarks can be derived from the anisotropic flow…

Nuclear Experiment · Physics 2020-12-02 Amir Goudarzi , Gang Wang , Huan Zhong Huang

The transverse momentum distributions of hadrons produced in p-p collisions at LHC energies of Root(sNN) = 0.9 TeV, 2.76 TeV and Root(sNN) = 7.0 TeV have been studied using a unified statistical thermal freeze-out model. A good agreement is…

High Energy Physics - Phenomenology · Physics 2015-03-17 Inam-ul Bashir , Riyaz Ahmed Bhat , Saeed Uddin