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Long range correlations are searched for by analyzing the experimental data on 16O-AgBr and 32S-AgBr collisions at 200A GeV/c and the results are compared with the predictions of a multi phase transport (AMPT) model. The findings reveal…

Nuclear Experiment · Physics 2015-10-26 Shakeel Ahmad , Anisa Khatun , Shaista Khan , A. Ahmad , M. Irfan

Currently, the only known way to obtain experimental information about the space-time structure of a heavy-ion collision is through 2-particle momentum correlations. Azimuthally sensitive HBT interferometry (Hanbury Brown-Twiss intensity…

Nuclear Theory · Physics 2011-07-01 Evan Frodermann , Ulrich Heinz

Two particle correlation data from the Relativistic Heavy Ion Collider have provided detailed femtoscopic information describing the space-time structure of the emission of pions. This data had avoided description with hydrodynamic-based…

Nuclear Theory · Physics 2009-07-22 Scott Pratt

The presence of $\alpha$-clustered structure in the light nuclei produces different exotic shapes in nuclear structure studies at low energies. Recent phenomenological studies suggest that collision of heavy nuclei with $\alpha$-clustered…

Nuclear Theory · Physics 2023-06-02 Pingal Dasgupta , Rupa Chatterjee , Guo-Liang Ma

The Hanbury Brown-Twiss (HBT) effect, at the quantum level, is essentially an interference of one particle with another, as opposed to interference of a particle with itself. Conventional treatments of identical particles encounter…

Quantum Physics · Physics 2017-12-01 Tabish Qureshi , Ushba Rizwan

We present the centrality dependence of the azimuthal angle correlation shapes between a trigger and associated charged hadrons in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from the STAR experiment. The away-side structure is…

Nuclear Experiment · Physics 2009-11-11 Mark J. Horner

Peripheral heavy ion reactions at ultra relativistic energies have large angular momentum that can be studied via two particle correlations using the Differential Hanbury Brown and Twiss method. We analyze the possibilities and sensitivity…

Nuclear Theory · Physics 2015-01-16 L. P. Csernai , S. Velle , D. J. Wang

Cluster structure of 16O,18O and 20O is investigated by the antisymmettrized molecular dynamics (AMD) plus generator coordinate method (GCM). We have found the K^{\pi}=0$_2^+$ and 0$_1^-$ rotational bands of 18O that have the prominent…

Nuclear Theory · Physics 2008-11-26 N. Furutachi , M. kimura , A. Doté , Y. Kanada-En'yo , S. oryu

We present azimuthal two particle correlations of high pt strange baryons and mesons with charged hadrons in Au+Au collisions at sqrt(s) =200 A GeV. We observe the suppression of the back to back correlations similar to the previous…

High Energy Physics - Experiment · Physics 2007-05-23 Ying Guo

The high spin states in $^{195}$Bi has been studied by $\gamma$-ray spectroscopic method using the $^{181}$Ta($^{20}$Ne, 6n) fusion evaporation reaction at 130 MeV. The $\gamma\gamma$ coincidence data were taken using an array of 8 clover…

In a framework of a multi-phase transport model with both partonic and hadronic interactions, azimuthal correlations between trigger particles and associated scattering particles in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV/$c$ have…

Nuclear Theory · Physics 2007-05-23 Y. G. Ma , G. L. Ma , S. Zhang , X. Z. Cai , J. H. Chen , Z. J. He , H. Z. Huang , J. L. Long , W. Q. Shen , X. H. Shi , J. X. Zuo

Within the framework of an extended quantum molecular dynamics model, we simulated $^{40}$Ca + $^{16}$O collisions at beam energies ranging from 60 to 150 MeV/nucleon for $^{16}$O with different $\alpha$-cluster configurations. Results…

Nuclear Theory · Physics 2023-09-01 Y. T. Cao , X. G. Deng , Y. G. Ma

The methods currently used to measure collective flow in nucleus--nucleus collisions assume that the only azimuthal correlations between particles are those arising from their correlation with the reaction plane. However, quantum HBT…

Nuclear Theory · Physics 2009-10-31 Mai Dinh , Nicolas Borghini , Jean-Yves Ollitrault

The Hanbury Brown-Twiss (HBT) effect holds a pivotal place in intensity interferometry and gave a seminal contribution to the development of quantum optics. To observe such an effect, both good spectral and timing resolutions are necessary.…

This research use the AMPT model in Au+Au collisions to study the influence of the three nucleons correlation $C_{n^2p}$ on the light nuclei yield ratios. It is found that neglecting $C_{n^2p}$ leads to an overestimated relative neutron…

Nuclear Theory · Physics 2025-02-21 Ning Yu , Zuman Zhang , Hongge Xu , Zhong Zhu

Recent data from p+p and p+Pb collisions at the Large Hadron Collider (LHC), and d+Au and $^3$He+Au collisions at the Relativistic Heavy Ion Collider (RHIC) reveal patterns that---when observed in the collision of heavy nuclei---are…

Nuclear Experiment · Physics 2015-11-11 J. D. Orjuela Koop , A. Adare , D. McGlinchey , J. L. Nagle

The influence of kinematic constraints and event selection on the emergence of the alignment phenomenon observed in cosmic-ray experiments is studied within the HYDJET++ model. It is demonstrated that the high degree of alignment,…

High Energy Physics - Phenomenology · Physics 2026-03-05 Aleksei Nikolskii , Igor Lokhtin , Alexander Snigirev

We investigate the cluster-breaking effect and spatial distribution of negative-parity states in the $_\Lambda^{12}\rm{B}$ hypernucleus using the Hyper-Brink model with cluster-breaking(CB-Hyper-Brink) optimized via Control Neural Network…

The energy dependence of the radii size of jets are studied in detail by the HBT correlation method using Monte Carlo Simulation generator Jetset7.4 to produce 40,000,000 events of e$^+$e$^-$ collisions at $\sqrt s =30$, 50, 70, 91.2, 110,…

High Energy Physics - Phenomenology · Physics 2014-09-30 Chen Zheng-Yu , Wang Mei-Juan , Xie Yi-Long , Liang Zhu , Chen Gang

Two-pion correlation functions are analyzed at mid-rapidity for three systems (14.6 A-GeV Si+Al, Si+Au, and 11.6 A-GeV Au+Au), seven distinct centrality conditions, and different kT bins in the range 0.1--0.5 GeV/c. Source reference frames…

Nuclear Experiment · Physics 2011-08-19 L. Ahle , The E802 Collaboration