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We have measured the distributions of protons and deuterons produced in high energy heavy ion Au+Au collisions at RHIC over a very wide range of transverse and longitudinal momentum. Near mid-rapidity we have also measured the distribution…

I review some important results from RHIC experiments. They were obtained in a unique environment for studying QCD bulk matter at temperatures and densities that surpass the limits where hadrons can exist as individual entities, raising the…

Nuclear Experiment · Physics 2009-01-08 Rachid Nouicer

The dilepton radial flow in Au+Au collisions at \sqrt{s_{NN}}=200 GeV is investigated. The space-time evolution of the fireball is described by a 2+1 dimensional ideal hydrodynamics with a variety of equations of state. The slope parameters…

Nuclear Theory · Physics 2011-09-12 Jian Deng , Qun Wang , Nu Xu , Pengfei Zhuang

Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within…

Nuclear Experiment · Physics 2008-11-26 STAR Collaboration , J. Adams

The midrapidity inclusive densities of different secondaries are calculated in the framework of the Quark-Gluon String Model. The transfer of baryon number in rapidity space due to the gluon string junction propagation leads to a…

High Energy Physics - Phenomenology · Physics 2008-05-16 G. H. Arakelyan , C. Merino , C. Pajares , Yu. M. Shabelski

The rapidity densities in Au-Au collisions at center-of-mass energies 200 and 130 A GeV measured at Relativistic Heavy-Ion Collider by STAR and PHENIX collaborations are analyzed within the statistical hadronization model at chemical…

Nuclear Theory · Physics 2008-11-26 Jaakko Manninen

The magnitude of the local fluctuations of the net baryon number and electric charge differs widely between the confined and deconfined phases, and the difference is partially frozen at an early stage in relativistic heavy ion collisions.…

Nuclear Theory · Physics 2010-05-28 M. Asakawa , U. Heinz , B. Muller

The hydrodynamic (hydro) model has been extensively applied to heavy ion data from the relativistic heavy ion collider (RHIC). Results are interpreted to conclude that a dense QCD medium nearly opaque to most partons, a strongly-coupled…

High Energy Physics - Phenomenology · Physics 2011-04-08 Thomas A. Trainor

The time-scales of rehadronization are considered for a baryon-free QGP at RHIC and LHC energies. The non-equilibrium nucleation scenario leads to mechanical instability of the supercooled QGP phase which then may be suddenly converted in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Csorgo , L. P. Csernai

Much of the energy of the nuclei colliding at RHIC or SPS is converted into final state hadronic particles. About a quarter of this energy is in baryons and antibaryons. There are nearly 10 strange quark pairs per central rapidity…

Nuclear Theory · Physics 2009-11-07 J. Rafelski , J. Letessier

Utilizing the three-fireball picture within the quark combination model, we study systematically the charged particle pseudorapidity distributions in both Au+Au and Cu+Cu collision systems as a function of collision centrality and energy,…

High Energy Physics - Phenomenology · Physics 2010-01-08 De-ming Wei , Feng-lan Shao , Jun Song , Yun-fei Wang

While roton dispersion relations had been restricted to correlated quantum systems at low temperature, recent works show the possibility of obtaining this unusual dispersion in acoustic and elastic metamaterials. Such phenomenon has been…

Classical Physics · Physics 2022-11-18 Luca Iorio , Jacopo Maria De Ponti , Federico Maspero , Raffaele Ardito

We give the emission function of the axially symmetric Buda-Lund hydro model and present its simultaneous, high quality fits to identified particle spectra, two-particle Bose-Einstein or HBT correlations and charged particle pseudorapidity…

Nuclear Theory · Physics 2009-02-10 M. Csanad , T. Csorgo , B. Lorstad , A. Ster

An effective, low-energy, field theory of s-wave quarkonia, constituent heavy quarks, and gluons is constructed which is manifestly gauge invariant. The interaction Lagrangian has the form of a twist expansion, as typically encountered in…

High Energy Physics - Phenomenology · Physics 2016-09-01 Rafia Ali , Pervez Hoodbhoy

Studying fluctuations of conserved quantities, such as baryon number, strangeness, and charge, provides insights into the properties of matter created in high-energy nuclear collisions. Lattice QCD calculations suggest that higher moments…

Nuclear Experiment · Physics 2016-11-23 Jochen Thäder

Multiplicity distributions of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the large volume limit. In the canonical ensemble conservation of three charges (baryon number,…

Nuclear Theory · Physics 2008-11-26 M. Hauer , V. V. Begun , M. Gazdzicki , M. I. Gorenstein , V. P. Konchakovski , B. Lungwitz

We investigate baryon and charge transport in relativistic heavy-ion collisions, compare with Au + Au RHIC data at sqrt(s_NN)=0.2 TeV, and make predictions for net-proton rapidity distributions in central Pb + Pb collisions at CERN LHC…

High Energy Physics - Phenomenology · Physics 2014-11-20 Yacine Mehtar-Tani , Georg Wolschin

Long-distance effects in exclusive rare semileptonic transitions B -> (K, K*) are analysed within a relativistic quark model. The meson transition form factors, describing the meson amplitudes of the effective weak Hamiltonian, are…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. Melikhov , N. Nikitin , S. Simula

The quark-gluon plasma behaves as a relativistic viscous fluid in high-energy heavy ion collisions. I develop a causal dissipative hydrodynamic model at finite baryon density for RHIC and LHC to estimate the net baryon rapidity…

Nuclear Theory · Physics 2015-06-12 Akihiko Monnai

We show that the transverse-mass and rapidity spectra of protons and pions produced in Au-Au collisions at sqrt(sNN) = 2.4 GeV can be well reproduced in a thermodynamic model assuming single freeze-out of particles from a spherically…

Nuclear Theory · Physics 2021-02-23 Sz. Harabasz , W. Florkowski , T. Galatyuk , M. Gumberidze , R. Ryblewski , P. Salabura , J. Stroth