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The transverse momentum dependence of Hanbury-Brown/Twiss (HBT) interferometry radii for 2-body correlation functions provides experimental access to the collective dynamics in heavy-ion collisions. We present an analytical approximation…

Nuclear Theory · Physics 2008-11-26 Urs Achim Wiedemann , Pierre Scotto , Ulrich Heinz

Using a model for the evolution of the fireball created in Au-Au collisions at full RHIC energy which reproduces the hadronic single particle spectra and two-particle correlations we calculate thermal photon emission from the hot partonic…

High Energy Physics - Phenomenology · Physics 2007-05-23 Thorsten Renk

We investigate the two-particle interferometry for the particle-emitting sources which undergo the first-order phase transition from the quark-gluon plasma with a finite baryon chemical potential to hadron resonance gas. The effects of…

Nuclear Theory · Physics 2013-05-30 Hong-Jie Yin , Jing Yang , Wei-Ning Zhang , Li-Li Yu

A new iteration method is proposed for analyzing both the multiplicities and the transverse momentum spectra measured only within a small rapidity interval and with low momentum limit without any inconsistency or ad hoc assumptions and…

Nuclear Theory · Physics 2016-01-26 Suk Choi , Kang Seog Lee

The pt-spectra of hadrons measured at RHIC are very well described in a model which assumes that the chemical and thermal freeze-outs occur simultaneously. The model calculation includes all hadronic resonances and uses a simple…

Nuclear Theory · Physics 2007-05-23 Wojciech Florkowski , Wojciech Broniowski

We carry out hydrodynamical simulation of the evolution of fluid in relativistic heavy-ion collisions with random initial fluctuations. The time evolution of power spectrum of momentum anisotropies shows very strong correspondence with the…

Nuclear Theory · Physics 2016-11-09 P. S. Saumia , Ajit M. Srivastava

We used the modified Hagedron function and analyzed the experimental data measured by the BRAHMS, STAR, PHENIX and ALICE Collaborations in Copper-Copper, Gold-Gold, deuteron-Gold, Lead-Lead, proton-Lead and proton-proton collisions, and…

High Energy Physics - Phenomenology · Physics 2021-11-17 Muhammad Waqas , Lu-Meng Liu , Guang-Xiong Peng , Muhammad Ajaz

We discuss various sources of azimuthal correlations in relativistic heavy-ion collisions. The integral measure Phi is applied to quantify the correlations. We first consider separately the correlations caused by the elliptic flow,…

Nuclear Theory · Physics 2015-03-17 Tomasz Cetner , Katarzyna Grebieszkow , Stanislaw Mrowczynski

We study the mechanism of transverse energy (E_T) production in Au+Au collisions at RHIC. The time evolution starting from the initial energy loss to the final E_T production is closely examined in transport models. The relationship between…

Nuclear Theory · Physics 2007-05-23 Qun Li , Yang Pang , Nu Xu

We summarize here recent results from the STAR collaboration focusing on processes involving large momentum transfers. Measurements of angular correlations of di-hadrons are explored in both the pseudorapidity (eta) and azimuthal (phi)…

Nuclear Experiment · Physics 2008-11-26 Manuel Calderon de la Barca Sanchez

By analyzing the dynamical properties of particle production in relativistic heavy ion collisions, it is possible to characterize the final stage of the equilibration process occurring in the collision fireball. In this work, we use the…

High Energy Physics - Phenomenology · Physics 2010-09-22 D. D. Chinellato , J. Takahashi , I. Bediaga

I will present a review of the field of Hanbury Brown-Twiss interferometry in relativistic heavy-ion collisions. The "HBT puzzle" is explored in detail, emphasizing recent theoretical attempts to understand the persisting puzzle. I also…

Nuclear Experiment · Physics 2011-08-23 Dan Magestro

The photon transverse momentum spectrum and its anisotropy from Pb+Pb collisions at the CERN Large Hadron Collider energy $\sqrt {s_{NN}}=2.76$ TeV are investigated within the integrated hydrokinetic model (iHKM). Photon production is…

High Energy Physics - Phenomenology · Physics 2018-05-23 V. Yu. Naboka , Yu. M. Sinyukov , G. M. Zinovjev

We report the measurements of the transverse momentum spectra and invariant mass distributions of $\Delta$(1232)$\to \pi p$, $K^*$(892)$^{0,\pm} \to \pi K$ and $\rho$(770)$^{0} \to \pi^{+} \pi^{-}$ in Au+Au and p+p collisions at…

Nuclear Experiment · Physics 2007-05-23 H. Zhang

Single particle transverse mass spectra and HBT radii of identical pion and identical kaon are analyzed with a blast-wave parametrization under the assumptions local thermal equilibrium and transverse expansion. Under the assumptions,…

Nuclear Theory · Physics 2017-03-07 Ronghua He , Jing Qian , Jianyi Chen , Qingxin Wu , Lei Huo

We present selected recent results of multi-hadron correlation measurements in azimuth and pseudorapidity at intermediate and high \pt{} in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV, from the STAR experiment at RHIC. At intermediate \pt,…

Nuclear Experiment · Physics 2009-07-22 M. van Leeuwen

The azimuthal anisotropy due to path-length dependent jet energy loss is studied in a simple jet absorption model that include event by event fluctuating Glauber geometry. Significant anisotropy coefficients v_n are observed for n=1,2 and…

Nuclear Theory · Physics 2013-06-12 Jiangyong Jia

Recent results on identified hadrons from the PHENIX experiment in Au+Au collisions at mid-rapidity at $\sqrt{s_{NN}}$ = 200 GeV are presented. The centrality dependence of transverse momentum distributions and particle ratios for…

Nuclear Experiment · Physics 2019-08-14 T. Chujo

The blast wave model is applied to the recent data on HBT radii in pp collisions, measured by the ALICE collaboration. A reasonable description of data is obtained for a rather low temperature of the kinetic freeze-out, T ~ 100 MeV, and the…

High Energy Physics - Phenomenology · Physics 2015-01-27 Andrzej Bialas , Wojciech Florkowski , Kacper Zalewski

We study the transverse momentum ($p_T$) spectra of neutral pions and identified charged hadrons produced in proton--proton ($pp$), deuteron--gold ($d$--Au), and gold--gold (Au--Au) collisions at the center of mass energy…

High Energy Physics - Phenomenology · Physics 2024-03-27 Jia-Yu Chen , Mai-Ying Duan , Fu-Hu Liu , Khusniddin K. Olimov