Dynamics of Chemical Equilibrium of Hadronic Matter Close to $T_c$ (2009)
Noronha-Hostler, J., Beitel, M., Greiner, C., Shovkovy, I.
Quick chemical equilibration times of hadrons (specifically, $p\bar{p}$, $K\bar{K}$, $\Lambda\bar{\Lambda}$, and $\Omega\bar{\Omega}$ pairs) within a hadron gas are explained dynamically using...
Chemical Equilibration and Transport Properties of Hadronic Matter near $T_c$ (2009)
Noronha-Hostler, J., Noronha, J., Ahmad, H., Shovkovy, I., Greiner, C.
We discuss how the inclusion of Hagedorn states near $T_c$ leads to short chemical equilibration times of proton anti-proton pairs, $K\bar{K}$ pairs, and $\Lambda\bar{\Lambda}$ pairs, which indicates...
Third-order relativistic dissipative hydrodynamics (2009)
We expand the entropy current up to the third order in the shear stress tensor $\pi^{\alpha\beta}$ and derive a novel third-order evolution equation for $\pi^{\alpha\beta}$. This equation is solved...
Development of relativistic shock waves in viscous gluon matter (2009)
Bouras, I., Molnar, E., Niemi, H., Xu, Z., El, A., Fochler, O., ...
To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the...
Particle Ratios as a Probe of the QCD Critical Temperature (2009)
Noronha-Hostler, J., Ahmad, H., Noronha, J., Greiner, C.
We show how the measured particle ratios can be used to provide non-trivial information about the critical temperature of the QCD phase transition. This is obtained by including the effects of highly...
Dissipation, Collective Flow and Mach Cones at RHIC (2009)
Bouras, I., El, A., Fochler, O., Uphoff, J., Xu, Z., Greiner, C.
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton...
Finite lifetime effects on the photon production from a quark-gluon plasma (2009)
Michler, F., Schenke, B., Greiner, C.
We use the real-time Keldysh formalism to investigate finite lifetime effects on the photon emission from a quark-gluon plasma (QGP). We provide an ansatz which eliminates the divergent contribution...
Relativistic shock waves in viscous gluon matter (2009)
Bouras, I., Molnar, E., Niemi, H., Xu, Z., El, A., Fochler, O., ...
We solve the relativistic Riemann problem in viscous gluon matter employing a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear...
C. Greiner, Michael J. Moynihan, Wing C. Chan, Debra M. Lytle, Alex Pedersen, James R. Anderson, ...
Mutations of the p53 tumor suppressor gene have been described in several subtypes of nomHodgkin’s lymphoma, but the incidence of p53 mutations in mantle cell lymphoma (MCL) is unknown. We...
Viscous Effects on Elliptic Flow and Shock Waves (2008)
Bouras, I., Cheng, L., El, A., Fochler, O., Uphoff, J., Xu, Z., ...
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton...
Fochler, O., Xu, Z., Greiner, C.
The gluonic contribution to the nuclear modification factor, R_AA, is investigated for central Au+Au collisions at sqrt(s) = 200 GeV employing a perturbative QCD-based parton cascade including...
Heavy-ion collisions at the LHC-Last call for predictions (2008)
Armesto, N., Borghini, N., Jeon, S., Wiedemann, U. A., Abreu, S., Akkelin, S. V., ...
This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last...
R. Friedl, W. Klas, C. Greiner, M. Schefer, M. Preissack, P. Engels, ...
Introduction Multimedia technologies play an increasing role in teaching different aspects of cardiac surgery. These efforts are limited by the tremendous resources of time and money required...
Knowledge Management in Global Health Research Planning (2007)
Greiner Rose Research, C. Greiner, T. Rose
This papers goes even a step further by raising the hypothesis, that "an adequate knowledge management can also improves the underlying business process". To verify this hypothesis a...
Heavy Ion Collisions at the LHC - Last Call for Predictions (2007)
Abreu, S, Borghini, N, Akkelin, V, Alam, J, Albacete, J L, Andronic, A, ...
This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last...
Fast Equilibration of Hadrons in an Expanding Fireball (2007)
Noronha-Hostler, J., Greiner, C., Shovkovy, I. A.
Due to long chemical equilibration times within standard hadronic reactions during the hadron gas phase in relativistic heavy ion collisions it has been suggested that the hadrons are "born" into...
Heavy Ion Collisions at the LHC - Last Call for Predictions (2007)
Abreu, S., Akkelin, S. V., Alam, J., Albacete, J. L., Andronic, A., Antonov, D., ...
This writeup is a compilation of the predictions for the forthcoming Heavy Ion Program at the Large Hadron Collider, as presented at the CERN Theory Institute 'Heavy Ion Collisions at the LHC - Last...
Shear Viscosity to Entropy within a Parton Cascade (2007)
The shear viscosity is calculated by means of the perturbative kinetic partonic cascade BAMPS with CGC initial conditons for various saturation momentum scale Q_s. eta/s ~ 0.15 stays approximately...
Chemical Equilibration at the Hagedorn Temperature (2007)
Noronha-Hostler, J., Greiner, C., Shovkovy, I. A.
One important question in relativistic heavy ion collisions is if hadrons, specifically anti-hyperons, are in equilibrium before thermal freezeout because strangeness enhancement has long been...
Thermalization of gluon matter including ggggg interactions (2006)
Within a pQCD inspired kinetic parton cascade we simulate the space time evolution of gluons which are produced initially in a heavy ion collision at RHIC energy. The inelastic gluonic interactions...
Unlike particle correlations and the strange quark matter distillation process (2006)
Ardouin, D., Soff, S., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
The influence of time dependent medium modifications of low mass vector mesons on dilepton production is investigated using nonequilibrium quantum field theory. By working in the two-time...
Canonical suppression in microscopic transport models (2006)
Fochler, O., Vogel, S., Bleicher, M., Greiner, C., Koch-Steinheimer, P., Xu, Z.
We demonstrate the occurrence of canonical suppression associated with the conservation of an U(1)-charge in current transport models. For this study a pion gas is simulated within two different...
Thermalization of gluons at RHIC including gg ggg interactions in a parton cascade (2005)
Employing a newly developed pQCD inspired parton cascade we simulate the space time evolution of gluons which are produced initially in a heavy ion collision at RHIC energy. The inelastic $gg...
Dilepton production from hot hadronic matter in nonequilibrium (2005)
The influence of time dependent medium modifications of low mass vector mesons on dilepton yields is investigated within a nonequilibrium quantum field theoretical description on the basis of the...
Thermalization of gluons and onset of collectivity at RHIC due to gg ggg interactions (2005)
A number of promising results of a new 3+1 dimensional Monte Carlo parton cascade including inelastic multiplication processes (gg ggg) are elaborated: (1) thermalization and chemical saturation;...
Dynamic canonical suppression of strangeness in transport models (2005)
Fochler, O., Vogel, S., Bleicher, M., Greiner, C., Koch-Steinheimer, P., Xu, Z.
It is investigated whether canonical suppression associated with the exact conservation of an U(1)-charge can be reproduced correctly by current transport models. Therefore a pion-gas having a...
Dilepton production from non-equilibrium hot hadronic matter (2005)
It is investigated under which conditions an adiabatic adaption of the dynamic and spectral information of vector mesons to the changing medium in heavy ion collisions, as assumed in schematic model...
Proof that the Hydrogen-antihydrogen Molecule is Unstable (2005)
In the framework of nonrelativistic quantum mechanics we derive a necessary condition for four Coulomb charges $(m_{1}^+, m_{2}^-, m_{3}^+, m_{4}^-)$, where all masses are assumed finite, to form the...
Stability of Three Unit Charges. Necessary Conditions (2005)
Gridnev, D. K., Greiner, C., Greiner, W.
We consider the stability of three Coulomb charges $\{+1, -1, -1 \}$ with finite masses in the framework of nonrelativistic quantum mechanics. A simple physical condition on masses is derived to...
Chemical equilibration due to heavy Hagedorn states (2004)
Greiner, C., Koch-Steinheimer, P., Liu, F. M., Shovkovy, I. A., Stoecker, H.
A scenario of heavy resonances, called massive Hagedorn states, is proposed which exhibits a fast ($t\approx 1$ fm/c) chemical equilibration of (strange) baryons and anti-baryons at the QCD critical...
Inelastic multiparticle collisions in a parton cascade (2004)
We elaborate on a new 3+1 dimensional Monte Carlo parton cascade solving kinetic Boltzmann processes including - for the first time - inelastic multiplication processes (gg ggg) in a unified manner....
Aspects of Non-Equilbrium Quantum Field Theory in Heavy Ion Collisions (2004)
Greiner, C., Juchem, S., Xu, Z.
In this lecture we review recent progress in various aspects of non-equilibrium QFT with respect to relativistic heavy ion collisions. As a first and rather general study we summarize our (numerical)...
Quenching of high $p_\perp$ hadrons by (pre--)hadronic FSI at RHIC (2004)
Cassing, W., Gallmeister, K., Greiner, C.
Recently we have conjectured that (in-)elastic collisions of (pre-)hadronic high momentum states with the bulk of hadrons in the late fireball might substantially account for the attenuation of the...
Juchem, S., Cassing, W., Greiner, C.
We solve the Kadanoff-Baym equations for nonequilibrium initial configurations of the $\phi^4$-theory in 2+1 dimensions and compare to explicit solutions of generalized transport equations for the...
Cassing, W., Gallmeister, K., Bratkovskaya, E. L., Greiner, C., Stöcker, H.
We investigate hadron production and attenuation of hadrons with strange and charm quarks (or antiquarks) as well as high transverse momentum hadrons in relativistic nucleus-nucleus collisions from 2...
Cassing, W., Gallmeister, K., Greiner, C.
We investigate transverse hadron spectra from proton+proton, deuteron+Au and Au+Au collisions at sqrt{s}=200 GeV and 17.3 GeV within the Hadron-String-Dynamics (HSD) approach which is based on quark,...
Quantum dynamics and thermalization for out-of-equilibrium phi^4-theory (2003)
Juchem, S., Cassing, W., Greiner, C.
The quantum time evolution of \phi^4-field theory for a spatially homogeneous system in 2+1 space-time dimensions is investigated numerically for out-of-equilibrium initial conditions on the basis of...
The various experimental data at AGS, SPS and RHIC energies on hadron particle yields for central heavy ion collisions are investigated by employing a generalized statistical density operator, that...
Quenching of High pT Hadron Spectra by Hadronic Interactions in Heavy Ion Collisions at RHIC (2002)
Gallmeister, K., Greiner, C., Xu, Z.
Typically the materialization of high energetic transverse partons to hadronic jets is assumed to occur outside the reaction zone in a relativistic heavy ion collision. In contrast, a quantum...
Photoproduction of phi mesons from nuclei (2002)
Muehlich, P., Falter, T., Greiner, C., Lehr, J., Post, M., Mosel, U.
We investigate the consequences of possible medium modifications of the phi meson at finite nuclear matter density on the K+K- mass distribution in photonuclear reactions. The inclusive cross...
Importance of multi-mesonic fusion processes on (strange) antibaryon production (2002)
Sufficiently fast chemical equilibration of (strange) antibaryons in an environment of nucleons, pions and kaons during the course of a relativistic heavy ion collision can be understood by a...
Unlike particle correlations and the strange quark matter distillation process (2002)
Ardouin, D., Soff, Sven, Spieles, C., Bass, S. A., Stocker, H., Gourio, D., ...
We present a new technique for observing the strange quark matter distillation process based on unlike particle correlations. A simulation is presented based on the scenario of a two-phase...
Chemical equilibration of antihyperons (2002)
Rapid chemical equilibration of antihyperons by means of the interplay between strong annihilation on baryons and the corresponding backreactions of multi-mesonic (fusion-type) processes in the...
Chemical equilibration of antihyperons (2002)
Rapid chemical equilibration of antihyperons by means of the interplay between strong annihilation on baryons and the corresponding backreactions of multi-mesonic (fusion-type) processes in the...
Energy Loss of High $\pT{}$ Hadrons by Final Hadronic State (2002)
Gallmeister, K., Greiner, C., Xu, Z.
In the context of the `jet quenching' phenomena typically materialization of the jet is assumed to take place in vacuum outside the reaction zone. On the other hand quantum mechanical estimates give...
Chemical Equilibration of Antihyperons (2002)
Rapid chemical equilibration of antihyperons by means of the interplay between strong annihilation on baryons and the corresponding backreactions of multi-mesonic (fusion-type) processes in the...
In-Medium Baryon Interactions and Hypernuclear Structure (2001)
Keil, C., Lenske, H., Greiner, C.
We introduce a microscopic and relativistic theory describing free scattering and finite nuclei for the octet baryons in a consistent quantum field theoretical framework based on Dirac-Brueckner...
A novel scenario for the production of antihyperons in relativistic heavy ion collisions (2001)
We elaborate on our recent suggestion on antihyperon production in relativistic heavy ion collisions by means of multi-mesonic (fusion-type) reactions. It will be shown that the (rare) antihyperons...
Search for production of strangelets in quark matter using particle correlations (2000)
Soff, S., Ardouin, D., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
Thermal and chemical equilibration of hadronic matter (2000)
Bratkovskaya, E. L., Cassing, W., Greiner, C., Effenberger, M., Mosel, U., Sibirtsev, A.
We study thermal and chemical equilibration in 'infinite' hadron matter as well as in finite size relativistic nucleus-nucleus collisions using a BUU cascade transport model with resonance and string...
Larionov, A. B., Cassing, W., Greiner, C., Mosel, U.
We perform a systematic study of in-plane and out-of-plane proton and neutron flow from nucleus-nucleus collisions within the BUU transport approach employing different parameter sets for the...
Schertler, K, Greiner, C, Schaffner-Bielich, J, Thoma, M H
The appearance of quark phases in the dense interior of neutron stars provides one possibility to soften the equation of state (EOS) of neutron star matter at high densities. This softening leads to...
Schertler, K., Greiner, C., Schaffner-Bielich, J., Thoma, M. H.
The appearance of quark phases in the dense interior of neutron stars provides one possibility to soften the equation of state (EOS) of neutron star matter at high densities. This softening leads to...
Aspects of thermal and chemical equilibration of hadronic matter (2000)
Bratkovskaya, E. L., Cassing, W., Greiner, C., Effenberger, M., Mosel, U., Sibirtsev, A.
We study thermal and chemical equilibration in 'infinite' hadron matter as well as in finite size relativistic nucleus-nucleus collisions using a BUU cascade transport model that contains resonance...
Langevin Interpretation of Kadanoff-Baym Equations (1999)
We show that the nonperturbative quantum transport equations, the `Kadanoff-Baym equations', can be understood as the ensemble average over stochastic equations of Langevin type. For this we couple a...
Unlike particle correlations and the strange quark matter distillation process (1999)
Ardouin, D., Soff, S., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
Unlike particle correlations and the strange quark matter distillation process (1999)
Ardouin, D., Soff, S., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
J/Psi Absorption Scenarios in Nuclear Collisions (1998)
Geiss, J., Bratkovskaya, E., Cassing, W., Greiner, C.
We study the production of $c \bar{c}$ pairs and dimuons from hard collisions in nuclear reactions within the covariant transport approach HSD. Adopting 6 mb for the $c \bar{c}$-baryon cross section...
Stochastic Disoriented Chiral Condensates (1998)
Greiner, C., Xu, Z., Biro, T. S.
Applying a Langevin description of the linear sigma model we investigate four different scenarios for the evolution of a disoriented chiral condensate: annealing or quench with initial conditions...
Strangeness Production in the HSD Transport Approach from SIS to SPS energies (1998)
Geiss, J., Cassing, W., Greiner, C.
We study systematically the production of strangeness in nuclear reactions from SIS to SPS energies within the covariant hadronic transport approach HSD. Whereas the proton and pion rapidity...
Charmonium Suppression with $c\overline{c}$ Dissociation by Strings (1998)
Geiss, J, Greiner, C, Bratkovskaya, E L, Cassing, W, Mosel, U
We study the production of cc~ pairs in nuclear reactions at SPS energies within the covariant transport approach HSD. The production of cc~ is treated perturbatively employing experimental cross...
Charmonium Suppression with cc~ Dissociation by Strings (1998)
Geiss, J., Greiner, C., Bratkovskaya, E. L., Cassing, W., Mosel, U.
We study the production of cc~ pairs in nuclear reactions at SPS energies within the covariant transport approach HSD. The production of cc~ is treated perturbatively employing experimental cross...
Medium effects and the structure of neutron stars in the effective mass bag model (1998)
Schertler, K., Greiner, C., Thoma, M. H.
One of the most intriguing consequence of the extreme conditions inside neutron stars is the possibility of the natural existence of a deconfined strange quark matter phase in the high density...
The influence of medium effects on the gross structure of hybrid stars (1997)
Schertler, K., Greiner, C., Sahu, P. K., Thoma, M. H.
We investigate the influence of medium effects on the structure of hybrid stars, i.e. neutron stars possessing a quark matter core. We found that medium effects reduce the extent of a pure quark...
Phase transition of a finite quark-gluon plasma (1997)
Spieles, C., Stoecker, H., Greiner, C.
The deconfinement transition region between hadronic matter and quark-gluon plasma is studied for finite volumes. Assuming simple model equations of state and a first order phase transition, we find...
Hadron and hadron-cluster production in a hydrodynamical model including particle evaporation (1997)
Dumitru, A., Spieles, C., Stoecker, H., Greiner, C.
We discuss the evolution of the mixed phase at RHIC and SPS within boostinvariant hydrodynamics. In addition to the hydrodynamical expansion, we also consider evaporation of particles off the surface...
Spieles, C., Stoecker, H., Greiner, C.
Measured hadron yields from relativistic nuclear collisions can be equally well understood in two physically distinct models, namely a static thermal hadronic source vs.~a time-dependent,...
Dynamical Properties of Flux Tubes in the Friedberg-Lee Model (1997)
Loh, S., Greiner, C., Thoma, M. H., Mosel, U.
A dynamical model of confinement based on a microscopic transport description of the Friedberg-Lee model is extended to explicit color degrees of freedom. The string tension is reproduced by an...
J/\psi-dissociation by a color electric flux tube (1997)
Loh, S., Greiner, C., Mosel, U.
We adress the question of how a $c-\bar{c}$-state (a $J/\psi $) can be dissociated by the strong color electric fields when moving through a color electric flux tube. The color electric flux tube and...
Dynamical fragmentation of flux tubes in the Friedberg-Lee model (1997)
Loh, S., Greiner, C., Mosel, U., Thoma, M. H.
We present two novel dynamical features of flux tubes in the Friedberg-Lee model. First the fusion of two (anti-)parallel flux tubes, where we extract a string-string interaction potential which has...
Strange quark matter with effective quark masses (1997)
Schertler, K., Greiner, C., Thoma, M. H.
The properties of strange quark matter at zero temperature are investigated including medium effects. The quarks are considered as quasiparticles which acquire an effective mass generated by the...
Search for production of strangelets in quark matter using particle correlations (1997)
Soff, S., Ardouin, D., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
Search for production of strangelets in quark matter using particle correlations (1997)
Soff, S., Ardouin, D., Spieles, C., Bass, S.A., Stocker, H., Gourio, D., ...
Pharmacokinetics of tacrolimus (FK 506) in children and adolescents with renal transplants (1997)
Filler, G, Grygas, R, Mai, I, Stolpe, H, Greiner, C, Bauer, S, ...
Medium effects in strange quark matter and strange stars (1996)
Schertler, K., Greiner, C., Thoma, M. H.
We investigate the properties of strange quark matter at zero temperature including medium effects. The quarks are considered as quasiparticles which acquire an effective mass generated by the...
Dynamics of Strangeness Production and Strange Matter Formation (1996)
Spieles, C., Bleicher, M., Gerland, L., Stoecker, H., Greiner, C.
The dynamics of a hadronizing quark matter drop is investigated with a hybrid-like model, which takes into account equilibrium as well as non-equilibrium features of the process. We study the the...
Baryon Stopping and Strangeness Production in Ultra-Relativistic Heavy Ion Collisions (1996)
Gerland, L., Spieles, C., Bleicher, M., Stoecker, H., Greiner, C.
The stopping behaviour of baryons in massive heavy ion collisions (at SPS, RHIC and LHC) is investigated within different microscopic models. At SPS-energies the predictions range from full stopping...
Creation of strange matter at low initial $\mu$/t (1996)
Spieles, C., Gerland, L., Stoecker, H., Greiner, C., Kuhn, C., Coffin, J.P.
Creation of strange matter at low initial $\mu$/t (1996)
Spieles, C., Gerland, L., Stoecker, H., Greiner, C., Kuhn, C., Coffin, J.P.
Hypermatter - Properties and Formation in Relativistic Nuclear Collisions (1995)
Gerland, L., Spieles, C., Bleicher, M., Papazoglou, P., Brachmann, J., Dumitru, A., ...
The extension of the Periodic System into hitherto unexplored domains - antimatter and hypermatter - is discussed. Starting from an analysis of hyperon and single hypernuclear properties we...
Distillation of Strangelets for low initial mu/T (1995)
Spieles, C., Greiner, C., Stoecker, H., Coffin, J. P.
We calculate the evolution of quark-gluon-plasma droplets during the hadronization in a thermodynamical model. It is speculated that cooling as well as strangeness enrichment allow for the formation...
Busch, D., Greiner, C., Lewis Rosenfeld, K., Ford, R., Wit, J. De, Hoeijmakers, J.H.J., ...
The complementation group (CG) assignment is presented for 74 moderately sensitive (approximately 2-4x sensitivity of parental line based on ratio of D10s) UV-sensitive mutants of Chinese hamster...
Some remarks on pion condensation in relativistic heavy ion collisions (1993)
Greiner, C., Gong, C., Müller, B.
Recently it was pointed out that coherent or condensated states of pions may account for the explanation of the Centauro events observed in cosmic ray showers. We argue that an occurrence of...
The trigger system of the OPAL experiment at LEP (1991)
Arignon, M, Ball, A H, Bell, K W, Bramhall, M, Braun, A, Carter, A A, ...
The Trigger system of the OPAL experiment at LEP (1991)
OPAL Collaboration, Arignon, M, Ball, A H, Bell, K W, Bramhall, M, Braun, A, ...
Guanine nucleotide-independent inhibition of adenylate cyclase by a stimulatory hormone.
Stimulation of basal adenylate cyclase activity in membranes of neuroblastoma x glioma hybrid cells by prostaglandin E1 (PGE1) is half-maximal and maximal (about 8-fold) at 0.1 and 10 microM...
Guanine nucleotide-independent inhibition of adenylate cyclase by a stimulatory hormone.
Stimulation of basal adenylate cyclase activity in membranes of neuroblastoma x glioma hybrid cells by prostaglandin E1 (PGE1) is half-maximal and maximal (about 8-fold) at 0.1 and 10 microM...
Light on population health status.
Beyrer, K., Brauer, G. W., Fliedner, T. M., Greiner, C., Reischl, U.
A new approach to illustrating and analysing health status is presented which allows comparisons of various aspects of health in a population at different times and in different populations during...