A5014436292- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Molecular Physics
- Relativity and Gravitational Theory
- Quantum Mechanics and Applications
- Quantum and Classical Electrodynamics
- Quantum, superfluid, helium dynamics
- Laser-Plasma Interactions and Diagnostics
- Muon and positron interactions and applications
- Pulsars and Gravitational Waves Research
- Cold Fusion and Nuclear Reactions
- High-pressure geophysics and materials
- Dark Matter and Cosmic Phenomena
- Experimental and Theoretical Physics Studies
- Neutrino Physics Research
- Quantum Electrodynamics and Casimir Effect
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Theoretical and Computational Physics
- Statistical Mechanics and Entropy
- Atomic and Subatomic Physics Research
- Stochastic processes and statistical mechanics
University of Arizona
2016-2025
University of Southampton
2021
European Organization for Nuclear Research
1981-2020
Ludwig-Maximilians-Universität München
2008-2010
Université Paris Cité
1993-2008
Laboratoire de Physique Théorique et Hautes Energies
1993-2006
United States Department of Energy
2003
University of Cape Town
1984-2001
Universidade Federal do Rio de Janeiro
1998
Laboratoire de Physique Théorique
1995
Rates are calculated for the processes $\mathrm{gg}\ensuremath{\rightarrow}s\overline{s}$ and $u\overline{u}$,$d\overline{d}\ensuremath{\rightarrow}s\overline{s}$ in highly excited quarkgluon plasma. For temperature $T>~160$ MeV strangeness abundance saturates during lifetime (\ensuremath{\sim}${10}^{\ensuremath{-}23}$ sec) of plasma created high-energy nuclear collisions. The chemical equilibration time gluons light quarks is found to be less than ${10}^{\ensuremath{-}24}$ sec.
In high energy heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) Brookhaven and Large Hadron (LHC) CERN, each central event will contain multiple pairs of quarks. if a region deconfined quarks gluons is formed, new mechanism for formation quarkonium bound states be activated. This result mobility in region, such that can formed from quark an antiquark which were originally produced separate incoherent interactions. Model estimates this effect J/psi production RHIC indicate...
We study the phase-space correlation function for Dirac vacuum in presence of simple field configurations. Our formalism rests on Wigner transform Dirac-Heisenberg coupled to electromagnetic field. A self-consistent set equations obeyed by 16 components and electric magnetic is derived. approach manifestly gauge invariant. closed system integro-differential obtained neglecting quantum fluctuations as should be appropriate strong fields. These are an extension Vlasov used description plasma....
The 1s bound state of superheavy atoms and molecules reaches a binding energy $\ensuremath{-}2m{c}^{2}$ at $Z\ensuremath{\approx}169$. It is shown that the $K$ shell still localized in $\mathcal{r}$ space even beyond this critical proton number it has width $\ensuremath{\Gamma}$ (several keV large) which positron escape for ionized shells. suggestion made effect can be observed collision very heavy ions (superheavy molecules) during collision.
We show that all central rapidity hadron yields measured in Pb-Pb collisions at $\sqrt{{s}_{\mathit{NN}}}=2.76$ TeV are well described by the chemical nonequilibrium statistical hadronization model (SHM), where chemically equilibrated quark-gluon plasma source breaks up directly into hadrons. SHM parameters obtained as a function of centrality colliding ions, and we compare CERN Large Hadron Collider (LHC) results with Brookhaven National Laboratory Relativistic Heavy Ion (RHIC) results....
We obtain within Fokker-Planck dynamics an explicit generalization of Einstein's relation between drag, diffusion and equilibrium distribution for a spatially homogeneous system, considering both the transverse longitudinal dimension n>1. then provide complete characterization when becomes Boltzmann/J"uttner distribution, it satisfies more general Tsallis distribution. apply this analysis to recent calculations drag charm quark in thermal plasma, show that only describes well. also practical...
The heavy-ion motion in sub-Coulomb collisions generates extreme magnetic fields. hyperfine splitting of the spin-\textonehalf{} quasimolecular electronic states U + is found to reach 10% molecular binding energy (100 keV). Also Pb+Pb and Xe+Xe are considered.