Dynamical simulation of bound antiproton-nuclear systems and observable signals of cold nuclear compression

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.014604· OSTI ID:21192041

Larionov, A B; Mishustin, I N; Satarov, L M ^[1]; Greiner, W ^[1]

---

1. Frankfurt Institute for Advanced Studies, J. W. Goethe-Universitaet, D-60438 Frankfurt am Main (Germany)

On the basis of the kinetic equation with self-consistent relativistic mean fields acting on baryons and antibaryons, we study dynamical response of the nucleus to an antiproton implanted in its interior. By solving numerically the time-dependent Vlasov equation, we show that the compressed state is formed on a rather short time scale of about 4-10 fm/c. This justifies the assumption, that the antiproton annihilation may happen in the compressed nuclear environment. The evolution of the nucleus after antiproton annihilation is described by the same kinetic equation including collision terms. We show, that nucleon kinetic energy spectra and the total invariant mass distributions of produced mesons are quite sensitive observables to the antiproton annihilation in the compressed nucleus.

• OSTI ID: 21192041
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANNIHILATION
ANTIPROTONS
BOLTZMANN-VLASOV EQUATION
COLLISIONS
COMPRESSION
KINETIC ENERGY
KINETIC EQUATIONS
MASS DISTRIBUTION
MEAN-FIELD THEORY
MESONS
RELATIVISTIC RANGE
SIMULATION
SPECTRA
TIME DEPENDENCE