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The hot and dense strongly interacting Quark-Gluon Plasma (sQGP) created in ultra-relativistic heavy-ion collisions can be probed by studying high-$p_{\rm T}$ particle production and parton energy loss. Similar measurements performed in…

Nuclear Experiment · Physics 2019-08-13 Gyula Bencedi

We derive the quantum kinetic theory for massive fermions with collision terms and self-energy corrections based on quantum field theory. We adopt an effective power counting scheme with $\hbar$ expansion to obtain the leading-order…

High Energy Physics - Phenomenology · Physics 2024-03-28 Shuo Fang , Shi Pu , Di-Lun Yang

We show that the polarization of hyperons observed in high energy collisions using unpolarized hadron beams and unpolarized nucleon or nuclear targets is closely related to the left-right asymmetries observed in single spin inclusive hadron…

High Energy Physics - Phenomenology · Physics 2007-05-23 Liang Zuo-tang

The quark gluon plasma (QGP) is one of the most interesting forms of matter providing us with insight on quantum chromodynamics (QCD) and the early universe. It is believed that the heavy-ion collision experiments at the Relativistic Heavy…

Nuclear Theory · Physics 2022-08-01 Wenkai Fan

The momentum distribution of Lambda^0 hyperons produced from the quark-gluon plasma (QGP) in ultra-relativistic heavy-ion collisions is calculated in dependence on their polarization. The momentum distribution of Lambda^0 hyperons is…

The quark combination mechanism of QGP hadronization is applied to nucleus-nucleus collisions at top SPS energy. The yields, rapidity and transverse momentum distributions of identified hadrons in most central Pb+Pb collisions at…

High Energy Physics - Phenomenology · Physics 2009-08-20 Chang-en Shao , Jun Song , Feng-lan Shao , Qu-bing Xie

The production of heavy flavor quark pairs, including top-anti-top, at the LHC proceeds primarily through gluon fusion. The correlation between the gluon spins affects various spin correlations between the produced quark and anti-quark.…

High Energy Physics - Phenomenology · Physics 2017-10-05 Gary R. Goldstein , S. Liuti

The quark combination mechanism of hadron production is applied to nucleus-nucleus collisions at the CERN Super Proton Synchrotron (SPS) and BNL Alternating Gradient Synchrotron (AGS). The rapidity spectra of identified hadrons and their…

High Energy Physics - Phenomenology · Physics 2015-05-28 Le-xue Sun , Rui-qin Wang , Jun Song , Feng-lan Shao

Relativistic heavy ions are copious sources of virtual photons. The large photon flux gives rise to a substantial photonuclear interaction probability at impact parameters where no hadronic interactions can occur. Multiple photonuclear…

Nuclear Theory · Physics 2009-11-07 Anthony J. Baltz , Spencer R. Klein , Joakim Nystrand

The progress over the 30 years since the first high-energy heavy-ion collisions at the BNL-AGS and CERN-SPS has been truly remarkable. Rigorous experimental and theoretical studies have revealed a new state of the matter in heavy-ion…

Nuclear Experiment · Physics 2021-04-26 Takafumi Niida , Yasuo Miake

We give a brief review on the spin alignment induced by the strong field and the shear-stress tensor. In experiments, a significant positive deviation from 1/3 is observed for the $\phi$ meson, which can be explained by the anisotropy of…

High Energy Physics - Phenomenology · Physics 2025-07-08 Xin-Li Sheng , Qun Wang

In this letter we study the photoproduction of heavy quarks and vector mesons in the coherent proton-nucleus (pA) interactions for RHIC and LHC energies and analyze if these processes can be used to determine the QCD dynamics at high…

High Energy Physics - Phenomenology · Physics 2011-01-25 V. P. Goncalves , M. V. T. Machado

The observation of spin alignment of quarkonia in ultra-relativistic heavy-ion collisions provides deep insight into the possible formation of the quark-gluon plasma (QGP). The present study investigates the spin alignment of quarkonia…

Nuclear Theory · Physics 2026-03-25 Bhagyarathi Sahoo , Captain R. Singh , Raghunath Sahoo

We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we show that total hadron yields summed over the spin components…

An introduction to dynamical microscopic models of hadronic and nuclear interactions is presented. Special emphasis is put in the relation between multiparticle production and total cross-section contributions. In heavy ion collisions, some…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Capella

Heavy quarkonium is one of the key candidates to study the fundamental properties of Quark-Gluon Plasma (QGP) created in heavy-ion ($A$+$A$) collisions. Comparing the production of the $J/\psi$ meson in proton+proton ($p$+$p$) and $A$+$A$…

Nuclear Experiment · Physics 2026-05-26 Yi Yang , Chun-Wei Su , Te-Chuan Huang

We study the mass spectra and spin alignment of vector meson $J/\psi$ in a thermal magnetized background using a generalized theoretical framework based on gauge/gravity duality. Utilizing a soft wall model for the QGP background and a…

High Energy Physics - Phenomenology · Physics 2024-07-30 Yan-Qing Zhao , Xin-Li Sheng , Si-Wen Li , Defu Hou

The Quark-Gluon Plasma (QGP) is created in high energy heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). This medium is transparent to electromagnetic probes but nearly opaque to colored…

Nuclear Experiment · Physics 2018-10-17 Christine Nattrass

We investigate the inclusive production of prompt J/psi mesons in polarized hadron-hadron and photon-hadron collisions in the factorization formalism of NRQCD. Numerical results are presented for BNL RHIC-Spin and the approved SLAC…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Klasen , B. A. Kniehl

Nuclear collisions at intermediate, relativistic, and ultra-relativistic energies offer unique opportunities to study in detail manifold fragmentation and clustering phenomena in dense nuclear matter. At intermediate energies, the well…

Nuclear Theory · Physics 2007-05-23 Stefan Scherer , Horst Stocker
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