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The effect of shadowing on the early state of ultrarelativistic heavy ion collisions is investigated along with transverse energy and hard process production, specifically Drell-Yan, $J/\psi$, and $\Upsilon$ production. We choose several…

High Energy Physics - Phenomenology · Physics 2014-11-17 V. Emel'yanov , A. Khodinov , S. R. Klein , R. Vogt

Hard photons from neutron-proton bremsstrahlung in intermediate energy heavy-ion reactions are examined as a potential probe of the nuclear symmetry energy within a transport model. Effects of the symmetry energy on the yields and spectra…

Nuclear Theory · Physics 2008-11-26 Gao-Chan Yong , Bao-An Li , Lie-Wen Chen

Using a more reasonable separate density-dependent scenario instead of the total density-dependent scenario for in-medium $nn$, $pp$ and $np$ interactions, we examine effects of differences of in-medium nucleon-nucleon interactions in two…

Nuclear Theory · Physics 2020-08-24 Gao-Feng Wei , Chang Xu , Wei Xie , Qi-Jun Zhi , Shi-Guo Chen , Zheng-Wen Long

We study the isospin effects of the mean field and two-body collision on the nucleon emissions at the intermediate energy heavy ion collisions by using an isospin dependent transport theory. The calculated results show that the nucleon…

Nuclear Theory · Physics 2009-11-10 Jian-Ye Liu , Yong-Zhong Xing , Wen-Jun Guo

The high-density behavior of nuclear symmetry energy is among the most uncertain properties of dense neutron-rich matter. Its accurate determination has significant ramifications in understanding not only the reaction dynamics of heavy-ion…

Nuclear Theory · Physics 2014-02-27 Zhi-Gang Xiao , Gao-Chan Yong , Lie-Wen Chen , Bao-An Li , Ming Zhang , Guo-Qing Xiao , Nu Xu

The polarization of real photons emitted from early-time heavy-ion collisions is calculated, concentrating on the contribution from bremsstrahlung and quark-antiquark annihilation processes at leading order in the strong coupling. The…

Nuclear Theory · Physics 2023-06-21 Sigtryggur Hauksson , Charles Gale

Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model and the scaling model according to nucleon effective mass, effects of elastic and inelastic NN scattering cross sections on pion-/pion+ in the neutron-rich reaction…

Nuclear Theory · Physics 2011-12-07 Gao-Chan Yong

We investigate the effect of nucleon-nucleon correlations on the initial condition of ultra-central heavy ion collisions at LHC energies. We calculate the eccentricities of the MC-Glauber and IP-Glasma models in the 0--1% centrality class…

Nuclear Theory · Physics 2014-07-01 G. S. Denicol , C. Gale , S. Jeon , J. -F. Paquet , B. Schenke

The centrality dependence of directed and elliptic flow in light and heavy systems of colliding nuclei is studied within two microscopic transport models at energies from 1 AGeV to 160 A GeV. The pion directed flow has negative slope in the…

Nuclear Theory · Physics 2009-11-06 L. V. Bravina , Amand Faessler , C. Fuchs , E. E. Zabrodin

In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility…

Nuclear Theory · Physics 2015-06-26 Bao-An Li , Che Ming Ko , Wolfgang Bauer

The momentum dependence of the nucleon mean-field potential in a wide momentum range can be an important factor to determine the $\Delta$ resonance and pion production in intermediate-energy heavy-ion collisions. In particular, in…

Nuclear Theory · Physics 2023-10-17 Natsumi Ikeno , Akira Ono

Flow observables in heavy-ion reactions at incident energies up to about 1 GeV per nucleon have been shown to be very useful for investigating the reaction dynamics and for determining the parameters of reaction models based on transport…

Nuclear Experiment · Physics 2014-03-25 P. Russotto , M. D. Cozma , A. Le Fevre , Y. Leifels , R. Lemmon , Q. Li , J. Lukasik , W. Trautmann

In the paper energy dependence of femtoscopy characteristics of pion emission region at freeze-out is investigated for collisions of various ions and for all experimentally available energies. For the first time the normalized values of…

Nuclear Experiment · Physics 2016-05-17 V. A. Okorokov

We discuss expectations of saturation physics for various observables in heavy ion collisions. We show how simple saturation-inspired assumptions about particle production in heavy ion collisions lead to Kharzeev-Levin-Nardi model.…

High Energy Physics - Phenomenology · Physics 2010-11-30 Yuri V. Kovchegov

Within the relativistic mean-field framework with hadron masses and coupling constants dependent on the mean scalar field we study properties of nuclear matter at finite temperatures, baryon densities and isospin asymmetries relevant for…

Nuclear Theory · Physics 2022-10-12 K. A. Maslov , D. N. Voskresensky

We consider the dependences of the average number of interacting nucleons in high energy heavy ion collisions on the impact parameter in two cases, when the colliding nuclei have equal atomic weights, and when one nucleus is significantly…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. Pajares , Yu. M. Shabelski

Multi-pion correlation effect on the source distribution is studied. It is shown that multi-pion Bose-Einstein correlation make the average radius of the pion source become smaller. The isospin effect on the pion multiplicity distribution…

High Energy Physics - Phenomenology · Physics 2008-11-26 Q. H. Zhang

I present a brief discussion of the different approaches to the study initial state effects in heavy ion collisions in view of the recent results from Pb+Pb and p+p collisions at the LHC.

High Energy Physics - Phenomenology · Physics 2015-05-30 Javier L Albacete

Effects of partonic interactions in heavy ion collisions at RHIC are studied in a multiphase transport model (AMPT) that includes both initial partonic and final hadronic interactions.It is found that a large parton scattering cross section…

Nuclear Theory · Physics 2009-11-07 C. M. Ko , Z. W. Lin , S. Pal

The present status of the use of two-particle intensity interferometry as a diagnostic tool to study the space-time dynamics of intermediate energy heavy ion collisions is examined. Calculations for the two-proton and two-pion correlation…

Nuclear Theory · Physics 2009-10-22 Wolfgang Bauer
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