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We report the first measurement of charged particle elliptic flow in Pb-Pb collisions at 2.76 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurement is performed in the central pseudorapidity region (|$\eta$|<0.8)…

Nuclear Experiment · Physics 2017-10-02 ALICE Collaboration

The elliptic flow coefficient ($v_{2}$) of identified particles in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV was measured with the ALICE detector at the LHC. The results were obtained with the Scalar Product method, a…

Nuclear Experiment · Physics 2015-07-15 ALICE Collaboration

Two-particle transverse momentum differential correlators, recently measured in Pb--Pb collisions at energies available at the CERN Large Hadron Collider (LHC), provide an additional tool to gain insights into particle production mechanisms…

Nuclear Experiment · Physics 2023-06-22 ALICE Collaboration

Experimental findings of recent years blurred the frontier between large and small systems. The features attributed to the Quark Gluon Plasma formation have also been found in smaller systems when measuring particle production in high…

High Energy Physics - Experiment · Physics 2024-01-26 Nicolò Jacazio

Recent developments on a deep learning feed-forward network for estimating elliptic flow ($v_2$) coefficients in heavy-ion collisions have shown us the prediction power of this technique. The success of the model is mainly the estimation of…

High Energy Physics - Phenomenology · Physics 2023-05-05 Neelkamal Mallick , Suraj Prasad , Aditya Nath Mishra , Raghunath Sahoo , Gergely Gábor Barnaföldi

We have developed a relativistic transport approach at fixed $\eta/s(T)$ that incorporates initial space fluctuations generated by wounded quark model to study the hadron observables in 5.02 TeV p+Pb collisions. We find that our approach is…

Nuclear Theory · Physics 2020-01-29 Yifeng Sun , Salvatore Plumari , Vincenzo Greco

Recent studies reveal that at high energies, collisions of small system like $p+p$ gives signatures similar to that widely observed in heavy ion collisions hinting towards a possibility of forming a medium with collective behaviour. With…

High Energy Physics - Phenomenology · Physics 2020-01-15 Suman Deb , Golam Sarwar , Dhananjaya Thakur , Pavish S. , Raghunath Sahoo , Jan-e Alam

We analyze the proton-lead collisions at the LHC energy of 5.02TeV in the three-stage approach, previously used to successfully describe the relativistic A-A collisions. The approach consists of the early phase, modeled with the Glauber…

Nuclear Theory · Physics 2013-07-15 Piotr Bozek , Wojciech Broniowski

We report the first results of elliptic ($v_2$), triangular ($v_3$) and quadrangular flow ($v_4$) of charged particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with the ALICE detector at the CERN Large Hadron Collider. The…

Nuclear Experiment · Physics 2016-12-13 ALICE Collaboration

We use perfect-fluid hydrodynamical model to predict the elliptic flow coefficients in Pb + Pb collisions at the Large Hadron Collider (LHC). The initial state for the hydrodynamical calculation for central $A + A$ collisions is obtained…

High Energy Physics - Phenomenology · Physics 2009-03-04 H. Niemi , K. J. Eskola , P. V. Ruuskanen

The multiplicity and elliptic flow of charged particles produced in Pb-Pb collisions at center of mass energy $\sqrt{s_{NN}}=2.76$ TeV from the Large Hadron Collider are studied in a multiphase transport (AMPT) model. With the standard…

Nuclear Theory · Physics 2015-03-17 Jun Xu , Che Ming Ko

We determine the transverse system size of the initial non-equilibrium Glasma state and of the hydrodynamically evolving fireball as a function of produced charged particles in p+p, p+Pb and Pb+Pb collisions at the Large Hadron Collider.…

Nuclear Theory · Physics 2014-09-10 Bjoern Schenke , Raju Venugopalan

We report first results on elliptic flow of identified particles at mid-rapidity in Au+Au collisions at $\sqrt{s_{_{NN}}}=130$ GeV using the STAR TPC at RHIC. The elliptic flow as a function of transverse momentum and centrality differs…

Nuclear Experiment · Physics 2012-08-27 STAR Collaboration

Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range…

Nuclear Experiment · Physics 2022-04-08 ALICE Collaboration

Using a multiphase transport model that includes both initial partonic and final hadronic scatterings, we have studied higher-order anisotropic flows as well as dihadron correlations as functions of pseudorapidity and azimuthal angular…

Nuclear Theory · Physics 2011-10-20 Jun Xu , Che Ming Ko

Collective behaviour has been observed in hadronic measurements of high multiplicity proton+lead collisions at the Large Hadron Collider (LHC), as well as in (proton, deuteron, helium-3)+gold collisions at the Relativistic Heavy-Ion…

Nuclear Theory · Physics 2017-01-25 Chun Shen , Jean-François Paquet , Gabriel S. Denicol , Sangyong Jeon , Charles Gale

Correlations between particles separated by several units of pseudorapidity were discovered in high-multiplicity pp and p-Pb collisions at the LHC. These long-range structures observed in two-particle correlation functions are reminiscent…

Nuclear Experiment · Physics 2019-01-04 Alice Ohlson

The long-range collective flow of particles produced in oxygen-oxygen (OO) and neon-neon (NeNe) collisions is measured with the CMS detector at the CERN LHC. The data samples were collected at a center-of-mass energy per nucleon pair of…

Nuclear Experiment · Physics 2025-10-06 CMS Collaboration

In this talk we discuss several interesting aspects of collective flow in small systems in reference to planned future experiments. First, we bring in the novel possibility of exploring elliptic flow with heavy nuclei collisions on…

Nuclear Theory · Physics 2021-02-03 Wojciech Broniowski , Piotr Bożek , Maciej Rybczyński , Enrique Ruiz Arriola

The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV and p-Pb collisions at $\sqrt{s_{\rm NN}}=$ 5.02 TeV with the ALICE detector at the CERN Large Hadron…

Nuclear Experiment · Physics 2017-12-27 ALICE Collaboration