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We study the HBT interferometry of ultra-relativistic nuclear collisions using a freezeout model in which free pions emerge in the course of the last binary collisions in the hadron gas. We show that the HBT correlators of both identical…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Makhlin , E. Surdutovich

The pion source as seen through HBT correlations at RHIC energies is investigated within the UrQMD approach. We find that the calculated transverse momentum, centrality, and system size dependence of the Pratt-HBT radii $R_L$ and $R_S$ are…

Nuclear Theory · Physics 2009-02-05 Qingfeng Li , Marcus Bleicher , Horst Stoecker

The freeze-out of hot and dense hadronic matter formed in relativistic nuclear collisions is probed by HBT interferometry of identical pions, kaons, etc. Coulomb repulsion/attraction of positive/negative particles show up at small particle…

Nuclear Theory · Physics 2009-10-31 Henning Heiselberg

Two-particle correlations between pions in Au+Au collisions have been measured at beam kinetic energies of 6, 8, and 10.8 GeV/u at the Alternating Gradient Synchrotron (AGS) over a wide range of rapidities using a magnetic spectrometer. The…

Nuclear Experiment · Physics 2019-08-14 Burt Holzman

In the paper we investigate a possibility to perform shape-sensitive HBT analysis in transversal plane. We study presently used Side-Out decomposition of the correlation function and we do not find it to be very sensitive for the detection…

High Energy Physics - Experiment · Physics 2007-05-23 Peter Filip

Puzzling discrepancies between recent pion interferometry data on Au+Au reactions at s^1/2 = 130 and 200 AGeV from RHIC and predictions based on ideal hydrodynamics are analyzed in terms of covariant parton transport theory. The…

Nuclear Theory · Physics 2009-10-09 Denes Molnar , Miklos Gyulassy

In these proceedings we will present the preliminary identified single particle inclusive spectra, the identified particle elliptic flow and the HBT versus the reaction plane measured with the STAR detector at RHIC. So far none of the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Raimond Snellings

We use a multi-phase transport (AMPT) model to study multi-pion and multi-kaon Hanbury Brown-Twiss (HBT) correlations for the partially coherent particle-emitting sources in relativistic heavy-ion collisions. A density-dependent…

Nuclear Theory · Physics 2024-11-19 Shi-Yao Wang , Jun-Ting Ye , Wei-Ning Zhang

A summary of current interferometry data in relativistic heavy ions is presented. At sqrt{s}=17GeV a sudden increase in the pion source volume is observed for central PbPb collisions. This seems to imply that the pion phase density has…

Nuclear Experiment · Physics 2016-09-08 Michael Murray

We suggest the azimuthal distribution of mean transverse (radial) rapidity of the final state particles as a more direct measure of the transverse motion of the source than the standard azimuthal multiplicity distribution. Using a sample…

Nuclear Theory · Physics 2015-06-11 Lin Li , Na Li , Yuanfang Wu

Hanbury-Brown Twiss (HBT) correlation measurements provide valuable information about the phase space distribution of matter in ultrarelativistic heavy-ion collisions. The rapidity dependence of HBT radii arises from a nontrivial interplay…

High Energy Physics - Phenomenology · Physics 2015-06-25 Thorsten Renk

STAR observes a complex picture of RHIC collisions where correlation effects of different origins -- initial state geometry, semi-hard scattering, hadronization, as well as final state interactions such as quantum intensity interference --…

Nuclear Experiment · Physics 2019-08-14 Mikhail Kopytine

Anisotropic flow of hadronic matter is considered as a sensitive tool to detect the early stage dynamics of high-energy heavy-ion collisions. Taking the event by event fluctuations of the collision geometry into account, the elliptic flow…

Nuclear Theory · Physics 2018-04-17 Soumya Sarkar , Provash Mali , Amitabha Mukhopadhyay

The recent study of centrality and transverse momentum ($p_{T}$) dependence of inclusive charged hardron elliptic anisotropy ($v_{2}$) at midrapidity ($|\eta|<1.0$) in Au+Au collision at $\sqrt{s_{NN}} =$ 7.7, 11.5, 19.6, 27, and 39 GeV in…

Nuclear Experiment · Physics 2017-10-03 Li Yi for STAR collaboration

Intensity interferometry (II) offers a powerful means to observe stellar objects with a high resolution. In this work, we demonstrate that II can also probe internal stellar kinematics by revealing a time-asymmetric Hanbury Brown and Twiss…

Measurements of the azimuthal anisotropy of high-\pT neutral pion neutral pion production in Au+Au collisions at sqrt(s_NN) = 200 GeV by the PHENIX experiment are presented. The data included in this paper were collected during the 2004…

Nuclear Experiment · Physics 2010-05-12 PHENIX Collaboration , S. Afanasiev

Using the technique of quantum transport of the interfering pair we examine the Hanbury-Brown-Twiss (HBT) interferometry signatures for the particle-emitting sources of pions and kaons produced in the heavy ion collisions at GSI-FAIR…

High Energy Physics - Phenomenology · Physics 2015-05-13 Li-Li Yu , M. J. Efaaf , Yan-Yu Ren , Wei-Ning Zhang

The propagation and modification of hard-scattered partons in the QGP can be studied using various types of jet and jet-like correlation measurements. The STAR detector with its full azimuthal and large pseudorapidity acceptance, as well as…

Nuclear Experiment · Physics 2019-08-21 Alice Ohlson

Measurements of various particle species over an extended momentum range provide a sensitive experimental tool for investigating particle production mechanisms in hadronic collisions. Comparison of the spectral shapes from different…

Nuclear Experiment · Physics 2019-08-13 R. S. Hollis

We discuss predictions for the pion and kaon interferometry measurements in relativistic heavy ion collisions at SPS and RHIC energies. In particular, we confront relativistic transport model calculations that include explicitly a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sven Soff
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