Multiple Critical Points in the QCD Phase Diagram (2009)
We use the linear sigma model with two flavors of quarks to study the phase diagram at finite temperature and baryon chemical potential as a function of the vacuum pion mass. Our calculations include...
Critical Points in the QCD Phase Diagram with Two Flavors of Quarks (2009)
We employ the linear sigma model to study the chiral dynamics of two flavors of quarks at finite temperature and density. Our calculations include thermal fluctuations of both the bosonic and...
Shear Transport Coefficients from Gauge/Gravity Correspondence (2008)
We study the shear mode in the gauge/gravity correspondence at finite temperature. First, we confirm the general formula for the shear viscosity in an arbitrary background metric which includes a...
Zhang, Xiao-Bing, Kapusta, J. I.
Electric and color neutral solutions, and the critical conditions for the formation of gapless color superconductors, are investigated in $K^0$ condensed color-flavor locked quark matter for nonzero...
Zhang, Xiao-Bing, Kapusta, J. I.
The electric/color neutral solution and the critical conditions for gapless formation are investigated in the $K^0$ condensed color-flavor locked matter. We point out that there exist no longer...
Near-Fields and Initial Energy Density in High Energy Nuclear Collisions (2006)
Fries, R. J., Kapusta, J. I., Li, Y.
We calculate the classical gluon field created at early times in collisions of large nuclei at high energies. We find that the field is dominated by the longitudinal chromoelectric and chromomagnetic...
Antimatter from Microscopic Black Holes (2006)
Daghigh, R. G., Kapusta, J. I.
The spectrum of positrons and antiprotons produced by the outflow of high temperature matter surrounding microscopic black holes is calculated for energies between five GeV and the Planck energy. The...
Rescattering Effects on Intensity Interferometry (2005)
We derive a general formula for the correlation function of two identical particles with the inclusion of multiple elastic scatterings in the medium in which the two particles are produced. This...
It is shown that Dirac-type neutrinos display BCS superfluidity for any nonzero mass. The Cooper pairs are formed by attractive scalar Higgs boson exchange between left- and right-handed neutrinos;...
Rate Equation Network for Baryon Production in High Energy Nuclear Collisions (2003)
We develop and solve a network of rate equations for the production of baryons and anti-baryons in high energy nuclear collisions. We include all members of the baryon octet and decuplet and allow...
High Temperature Matter and Neutrino Spectra from Microscopic Black Holes (2002)
Daghigh, R. G., Kapusta, J. I.
The spectrum of neutrinos produced by the outflow of high temperature matter surrounding microscopic black holes is calculated for neutrino energies between one GeV and the Planck energy. The results...
Huovinen, P., Belkacem, M., Ellis, P. J., Kapusta, J. I.
Radiation of dileptons and photons from high energy nuclear collisions provides information on the space-time evolution of the hot dense matter produced therein. We compute this radiation using...
Kapusta, J. I., Wong, S. M. H.
No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Omega and AntiOmega in central collisions between Pb nuclei at 158 A GeV at the CERN SPS. We argue...
No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Omega and AntiOmega hadrons in central collisions between Pb nuclei at 158 A GeV at the CERN SPS....
Domain Wall Dynamics of Phase Interfaces (2002)
Csernai, L. P., Kapusta, J. I., Osnes, E.
The statics and dynamics of a surface separating two phases of a relativistic quantum field theory at or near the critical temperature typically make use of a free energy as a functional of an order...
Hosotani, Y., Nakajima, T., Daghigh, R. G., Kapusta, J. I.
When a potential for a scalar field has two local minima there arise spherical shell-type solutions of the classical field equations due to gravitational attraction. We establish such solutions...
Collective Deceleration of Ultrarelativistic Nuclei and Creation of Quark-Gluon Plasma (2001)
Mishustin, I. N., Kapusta, J. I.
We propose a unified space-time picture of baryon stopping and quark-gluon plasma creation in ultrarelativistic heavy-ion collisions. It is assumed that the highly Lorentz contracted nuclei are...
High Temperature Matter and Gamma Ray Spectra from Microscopic Black Holes (2001)
Daghigh, R. G., Kapusta, J. I.
The relativistic viscous fluid equations describing the outflow of high temperature matter created via Hawking radiation from microscopic black holes are solved numerically for a realistic equation...
Eletsky, V. L., Belkacem, M., Ellis, P. J., Kapusta, J. I.
The mass shift, width broadening, and spectral density for the $\rho$ and $\omega$ mesons in a heat bath of nucleons and pions are calculated using a general formula which relates the self-energy to...
Two-Loop Self-Energy and Multiple Scattering at Finite Temperature (2001)
Kapusta, J. I., Wong, S. M. H.
One and two loop self-energies are worked out explicitly for a heavy scalar field interacting weakly with a light self-interacting scalar field at finite temperature. The ring/daisy diagrams and a...
Is Anomalous Production of Omega and anti-Omega Evidence for Disoriented Chiral Condensates? (2000)
Kapusta, J. I., Wong, S. M. H.
No conventional picture of nucleus-nucleus collisions has yet been able to explain the abundance of Omega and anti-Omega hyperons in central collisions between Pb nuclei at 158 A GeV at the CERN SPS....
Relativistic Viscous Fluid Description of Microscopic Black Hole Wind (2000)
Microscopic black holes explode with their temperature varying inversely as their mass. Such explosions would lead to the highest temperatures in the present universe, all the way to the Planck...
Bremsstrahlung from a Microscopic Model of Relativistic Heavy Ion Collisions (2000)
Wong, S. M. H., Belkacem, M., Kapusta, J. I., Bass, S. A., Bleicher, M., Stöcker, H.
We compute bremsstrahlung arising from the acceleration of individual charged baryons and mesons during the time evolution of high-energy Au+Au collisions at the Relativistic Heavy Ion Collider using...
False Vacuum Black Holes and Universes (2000)
Daghigh, R. G., Kapusta, J. I., Hosotani, Y.
We construct a black hole whose interior is the false vacuum and whose exterior is the true vacuum of a classical field theory. From the outside the metric is the usual Schwarzschild one, but from...
Two-Loop Contribution to High Mass Dilepton Production by Quark-Gluon Plasma (2000)
Kapusta, J. I., Wong, S. M. H.
We calculate the order \alpha_s finite temperature correction to dilepton production in quark-gluon plasma arising from the two-loop photon self-energy diagrams for high invariant mass M >> T.
Modification of Z Boson Properties in Quark-Gluon Plasma (2000)
Kapusta, J. I., Wong, S. M. H.
We calculate the change in the effective mass and width of a Z boson in the environment of a quark-gluon plasma under the conditions expected in Pb-Pb collisions at the LHC. The change in width is...
Dynamical Evolution of the Scalar Condensate in Heavy Ion Collisions (1999)
Csernai, László P, Ellis, Paul J, Jeon, S, Kapusta, J I
We derive the effective coarse-grained field equation for the scalar condensate of the linear sigma model in a simple and straightforward manner using linear response theory. In general, the...
Probing the Space-Time evolution of Heavy Ion Collisions with Bremsstrahlung (1999)
Kapusta, J. I., Wong, S. M. H.
We examine the bremsstrahlung photons emitted in the central collisions of two gold nuclei at the Relativistic Heavy Ion Collider. While the measurements of the final hadrons can reveal only the...
Neutral Kaon System in Dense Matter and Heavy-Ion Collisions (1999)
Amelino-Camelia, G, Kapusta, J I
Above a critical matter density the propagating modes of the neutral kaon system are essentially eigenstates of strangeness, but below it they are almost complete eigenstates of CP. We estimate the...
Eletsky, V. L., Ioffe, B. L., Kapusta, J. I.
Our recent work on modifications of rho-mesons formed at the last stage of evolution of hadronic matter produced in heavy ion collisions is summarized. It is found that while the mass shift is on the...
Kapusta, J. I., Wong, S. M. H.
The bremsstrahlung produced when heavy nuclei collide is estimated for central collisions at the Relativistic Heavy Ion Collider. Bremsstrahlung photons with energies below 100 to 200 MeV are...
Low-Energy Theorems for QCD at Finite Temperature and Chemical Potential (1999)
Shushpanov, I. A., Kapusta, J. I, Ellis, P. J.
The low-energy theorems for QCD are generalized to finite temperature. and chemical potential, including non-zero quark masses.
Properties of $\rho$-mesons produced in heavy ion collisions (1998)
Eletsky, V. L., Ioffe, B. L., Kapusta, J. I.
The mass shift and width broadening of $\rho$-mesons produced in heavy ion collisions is estimated. It is found that the mass increases by some tens of MeV but the width becomes large, increasing by...
Dispersion Relation of the Rho-Meson at Finite Temperature and Density (1998)
Eletsky, V. L., Kapusta, J. I.
The rho-meson mass shift, width broadening, and spectral density at finite temperature and nucleon density are estimated using a general formula which relates the self-energy to the real and...
Low-Energy Theorems for Gluodynamics at Finite Temperature (1998)
We generalize the low-energy theorems of gluodynamics to finite temperature. Examples of the theorems in the low and high temperature limits are given.
Mass Shift and Width Broadening of Rho-Mesons Produced in Heavy Ion Collisions (1998)
Eletsky, V. L., Ioffe, B. L., Kapusta, J. I.
The mass shift and width broadening of rho-mesons produced in heavy ion collisions is estimated using general formulae which relate the in-medium mass shift of a particle to the real part of the...
In-medium modification of $\rho$-mesons produced in heavy ion collisions (1998)
Eletsky, V. L., Ioffe, B. L., Kapusta, J. I.
The mass shift $\Delta m_{\rho}$ and width broadening $\Delta\Gamma_{\rho}$ of $\rho$ mesons produced in heavy ion collisions is estimated using a general formula which relates the in-medium mass...
Fluctuation and Dissipation in Classical Many-Particle Systems (1997)
Csernai, L. P., Jeon, S., Kapusta, J. I.
Coarse-grained Langevin-type effective field equations are derived for classical systems of particles. These equations include the effects of thermal fluctuation and dissipation which may arise from...
The return of the prodigal Goldstone boson (1995)
Kapusta, J I, Kharzeev, Dima E, McLerran, L
We propose that the mass of the \eta^\prime meson is a particularly sensitive probe of the properties of finite energy density hadronic matter and quark gluon plasma. We argue that the mass of the...
Nucleation of Quark--Gluon Plasma from Hadronic Matter (1994)
Kapusta, J. I., Venugopalan, R., Vischer, A. P.
The energy densities achieved during central collisions of large nuclei at Brookhaven's AGS may be high enough to allow the formation of quark--gluon plasma. Calculations based on relativistic...
Chemical Equilibration in the Parton Cascade Model (1994)
This comment is hereby withdrawn, because the paper by D. Seibert, KSUCNR-005-94 and nucl-th/9403005 was withdrawn and it was acknowleged that the parton cascade model does approach chemical...
Mesons in the quenched approximation at low temperature (1993)
Bochkarev, A. I., Kapusta, J. I.
We use an effective low energy field theory to describe the coupling between glueballs and mesons as an analog of the quenched approximation in lattice QCD. This allows us to study the temperature...
Weinberg-Type Sum Rules at Zero and Finite Temperature (1993)
Kapusta, J. I., Shuryak, E. V.
We consider sum rules of the Weinberg type at zero and nonzero temperatures. On the basis of the operator product expansion at zero temperature we obtain a new sum rule which involves the average of...
Screening Mass from Chiral Perturbation Theory, Virial Expansion, and the Lattice (1993)
Eletsky, V. L., Kapusta, J. I., Venugopalan, R.
We calculate the electric screening mass in hot hadronic matter using two different approaches, chiral perturbation theory and the relativistic virial expansion with empirical phase shifts, and...