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The influence of spacetime dynamics in hadronization via parton coalescence at RHIC is investigated using covariant parton transport theory. Key observables, the quark number scaling of elliptic flow and the enhancement of the p/pi ratio,…

Nuclear Theory · Physics 2009-11-10 Denes Molnar

This is a review of the parton cascade approach and its implications on parton coalescence at RHIC.

Nuclear Theory · Physics 2009-11-11 Denes Molnar

Puzzling discrepancies between recent pion interferometry data on Au+Au reactions at s^1/2 = 130 and 200 AGeV from RHIC and predictions based on ideal hydrodynamics are analyzed in terms of covariant parton transport theory. The…

Nuclear Theory · Physics 2009-10-09 Denes Molnar , Miklos Gyulassy

We introduce a transport approach which combines partonic and hadronic degrees of freedom on an equal footing and discuss the resulting reaction dynamics. The initial parton dynamics is modeled in the framework of the parton cascade model,…

Nuclear Theory · Physics 2009-10-31 S. A. Bass , M. Hofmann , M. Bleicher , L. Bravina , E. Zabrodin , H. Stoecker , W. Greiner

Several correlation analysis techniques are applied to p-p and Au-Au collisions at RHIC. Strong large-momentum-scale correlations are observed which can be related to local charge and momentum conservation during hadronization and to…

High Energy Physics - Phenomenology · Physics 2010-01-05 Thomas A. Trainor

We review the application and successes of a phase-space coalescence plus fragmentation model that has been applied for hadronization at RHIC. The physical concept is discussed together with the practical implementation. The robustness of…

Nuclear Theory · Physics 2008-11-26 V. Greco

The hydrodynamic (hydro) model applied to data from the relativistic heavy ion collider (RHIC) suggests that a dense QCD medium opaque to partons is formed in more-central Au-Au collisions. However, two-component spectrum analysis reveals a…

High Energy Physics - Phenomenology · Physics 2010-11-30 Thomas A. Trainor

The elliptic flow in heavy ion collisions at RHIC is studied in a multiphase transport model. By converting the strings in the high energy density regions into partons, we find that the final elliptic flow is sensitive to the parton…

Nuclear Theory · Physics 2009-11-07 Zi-wei Lin , C. M. Ko

Parton energy loss in Au+Au collisions at RHIC energies is studied by numerically solving the relativistic Boltzmann equation for the partons including $2 \leftrightarrow 2$ and $2 \to 2 + final state radiation$ collision processes. Final…

Nuclear Theory · Physics 2009-11-07 Y. Nara , S. E. Vance , P. Csizmadia

The large and saturating differential elliptic flow v2(pT) observed in Au+Au reactions at RHIC so far could only be explained assuming an order of magnitude denser initial parton system than estimated from perturbative QCD. Hadronization…

Nuclear Theory · Physics 2009-11-10 Denes Molnar

We calculate the one-particle hadronic spectra and correlation functions of pions based on a hydrodynamical model. Parameters in the model are so chosen that the one-particle spectra reproduce experimental results of $\sqrt{s}=130A$GeV…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tetsufumi Hirano , Kenji Morita , Shin Muroya , Chiho Nonaka

The rapidity dependence of inclusive and coincident particle production in d(p)+Au collisions at RHIC can be used to probe nuclear parton distribution functions down to small momentum fractions where theory anticipates that parton…

Using a covariant coalescence model, we study hadron production in relativistic heavy ion collisions from both soft partons in the quark-gluon plasma and hard partons in minijets. Including transverse flow of soft partons and independent…

Nuclear Theory · Physics 2009-11-10 V. Greco , C. M. Ko , P. Levai

We show that hadronization via quark coalescence enhances hadron elliptic flow at large pT relative to that of partons at the same transverse momentum. Therefore, compared to earlier results based on covariant parton transport theory, more…

Nuclear Theory · Physics 2009-11-10 Denes Molnar , Sergei A. Voloshin

We study the elliptic flow systematically from SIS to RHIC energies in a realistic dynamical cascade model. We compile our results with the recent data from STAR and PHOBOS experiments on elliptic flow of charged particles in Au + Au…

Nuclear Theory · Physics 2007-05-23 P. K. Sahu , N. Otuka , A. Ohnishi

We will review recent results on quantitative description of global properties of bulk partonic matter at RHIC. These results include strangeness phase space factor of the partonic matter, azimuthal angular anisotropy $v_2$, and transverse…

Nuclear Experiment · Physics 2010-01-15 Huan Zhong Huang

We show that particle species dependence of enhanced hadron production at intermediate transverse momentum (p_{T}) for d+Au collisions at RHIC can be understood in terms of the hadronic rescatterings in the final state. A multiphase…

Nuclear Theory · Physics 2012-04-17 Xiaoping Zhang , Jinhui Chen , Zhongzhou Ren , N. Xu , Zhangbu Xu , Qiang Zheng , Xianglei Zhu

Quark coalescence predictions for various multi-strange baryon to anti-baryon ratios for central Au+Au collisions at RHIC energies are compared to preliminary data of the STAR collaboration. The formation of Quark Matter and the sudden…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Zimanyi , P. Levai , T. Csorgo , T. S. Biro

The implications of parton rearrangement processes on the dynamics of ultra-relativistic heavy-ion collisions have been investigated. A microscopic transport approach, namely the quark gluon string model (QGSM) which has been extended for a…

Nuclear Theory · Physics 2011-03-02 G. Burau , J. Bleibel , C. Fuchs

The RHIC high energy collision of species ranging from p+p, p(d)+A to A+A provide access to the {small-x} component of the hadron wave function. The RHIC program has brought renewed interest in that subject with its ability to reach values…

Nuclear Experiment · Physics 2008-11-26 R. Debbe
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