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We develop a framework to relate proton number cumulants measured in heavy-ion collisions within a momentum space acceptance to the susceptibilities of baryon number, assuming that particles are emitted from a fireball with uniform…

High Energy Physics - Phenomenology · Physics 2022-08-30 Volodymyr Vovchenko , Volker Koch

We present geometry-based corrections to estimates of the Bjorken energy density in a broad range of heavy-ion collision energies (from RHIC to the LHC) considereing non-circular shape of the nuclei overlap area in case of events selected…

High Energy Physics - Phenomenology · Physics 2023-11-27 O. M. Shaposhnikova , A. A. Marova , G. A. Feofilov

In high-energy collisions, massive heavy quarks are produced back-to-back initially and they are sensitive to early dynamical conditions. The strong collective partonic wind from the fast expanding quark-gluon plasma created in high-energy…

Nuclear Theory · Physics 2008-11-26 X. Zhu , N. Xu , P. Zhuang

One of the most fundamental questions in the field of relativistic heavy ion physics is how to reach and explore densities which are needed to cross the chiral and/or the deconfinement phase transition. In this analysis we investigate the…

Nuclear Theory · Physics 2014-11-20 Sascha Vogel , Joerg Aichelin , Marcus Bleicher

While heavy ion collisions at the SPS have produced excited strongly interacting matter near the conditions for quark deconfinement, the RHIC may be the first machine capable of creating quark-antiquark plasmas sufficiently long-lived to…

Nuclear Experiment · Physics 2009-11-07 Grazyna Odyniec

The relativistic Fokker Planck equation has been used to study the evolution of the quark distribution in the quark gluon phase expected to be formed in ultra-relativistic heavy ion collisions. The effect of thermal masses for quarks and…

Nuclear Theory · Physics 2009-10-30 Pradip Roy , Jane Alam , Sourav Sarkar , Bikash Sinha , Sibaji Raha

In the high energy regime, the proton structure consists of a very large number of particles called partons (quarks and gluons) that interact with each other, according to the theory of strong interactions, Quantum Chromodynamics (QCD).…

High Energy Physics - Phenomenology · Physics 2018-08-06 Gilvana C. Penedo , Werner K. Sauter

We explore the dependence of the pT correlations in the event-by-event analysis of relativistic heavy-ion collisions at RHIC made recently by the PHENIX and STAR Collaborations. We point out that the observed scaling of strength of…

Nuclear Theory · Physics 2009-11-11 W. Broniowski , W. Florkowski , B. Hiller , P. Bozek

The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory delivers the world's highest energy polarized proton-proton collisions at a center of mass energy up to 500 GeV and provides a unique opportunity to study the…

High Energy Physics - Experiment · Physics 2015-05-27 Ming X Liu

Using a dynamical model based on the $NN \to d\pi$, $NNN \to dN$, and $NN\pi \to d\pi$ reactions and measured proton and pion transverse momentum spectra and elliptic flows, we study the production of deuterons and their elliptic flow in…

Nuclear Theory · Physics 2008-11-26 Yongseok Oh , Che Ming Ko

We have measured electron-ion recombination for Fe XII forming Fe XI using a merged beams configuration at the heavy-ion storage ring TSR located at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. The measured merged…

Instrumentation and Methods for Astrophysics · Physics 2012-06-15 O. Novotný , N. R. Badnell , D. Bernhardt , M. Grieser , M. Hahn , C. Krantz , M. Lestinsky , A. Müller , R. Repnow , S. Schippers , A. Wolf , D. W. Savin

The difference between the structures of jets produced in heavy-ion and hadronic collisions can best be exhibited in the correlations between particles within those jets. We study the dihadron correlations in jets in the framework of parton…

Nuclear Theory · Physics 2009-11-10 Rudolph C. Hwa , C. B. Yang

A set of coupled kinetic equations describing in the Abelian approximation a mixture of quarks and self-interacting gluons is formulated and solved numerically. The model includes the Schwinger-like mechanism for particle creation in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Skokov , S. A. Smolyansky , V. D. Toneev

We investigate the thermalization of charm quarks in high energy heavy ion collisions. To this end, we calculate the diffusion coefficient in the perturbative Quark Gluon Plasma and relate it to collisional energy loss and momentum…

High Energy Physics - Phenomenology · Physics 2009-11-10 Guy D. Moore , Derek Teaney

The observation of the vector meson's global spin alignment by the STAR Collaboration reveals that strong spin correlations may exist for quarks and antiquarks in relativistic heavy-ion collisions in the normal direction of the reaction…

High Energy Physics - Phenomenology · Physics 2024-02-27 Ji-peng Lv , Zi-han Yu , Zuo-tang Liang , Qun Wang , Xin-Nian Wang

We show that the phenomenology of isospin effects on heavy ion reactions at intermediate energies (few AGeV range) is extremely rich and can allow a ``direct'' study of the covariant structure of the isovector interaction in the hadron…

Nuclear Theory · Physics 2008-11-26 M. Di Toro , M. Colonna , G. Ferini , T. Gaitanos , V. Greco , H. H. Wolter

Around 1999, thanks to the RHIC Spin Collaboration (RSC), the Relativistic Heavy Ion Collider (RHIC) will be used as a polarized proton-proton collider. A new handed interaction between quark subconstituents, which could explain the excess…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. M. Virey

The Relativistic Heavy Ion Collider (RHIC) studies nuclear matter under a variety of conditions. Cold nuclear matter is probed with deuteron-gold collisions, while hot nuclear matter(possibly a quark-gluon plasma (QGP)) is created in…

Nuclear Experiment · Physics 2008-11-26 Spencer R. Klein

Recent experimental measurements of high $p_T$ hadron spectra and jet correlation at RHIC are analyzed within a parton model which incoporates initial jet production and final propagation in heavy-ion collisions. The suppresion of single…

Nuclear Theory · Physics 2014-11-18 Xin-Nian Wang

Beginning with precise data on the ratio of structure functions in deep inelastic scattering (DIS) from $^3$He and $^3$H, collected on the domain $0.19 \leq x_B \leq 0.83$, where $x_B$ is the Bjorken scaling variable, we employ a robust…

High Energy Physics - Phenomenology · Physics 2022-05-27 Zhu-Fang Cui , Fei Gao , Daniele Binosi , Lei Chang , Craig D. Roberts , Sebastian M. Schmidt