Above a critical matter density the propagating modes of the neutral kaon system are essentially agenstates of strangeness, but below it they are almost complete agenstates of CP. We estimate the real and imaginary parts of the energies of these modes and their mixing at all densities up to a nuclear matter density of 2 × 1014 g/cm3. I n a heavy-ion collision the strong interactions create eigenstates of strangeness, and these propagate adiabatically until the density has fallen to the critical value, whereupon the system undergoes a sudden transition to (near) agenstates of CP. We esti mate the critical density to be 20 g/cm3, and that this density will be reached about 2 × 105 fm/c after the end of the collision.
|Original language||English (US)|
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Jan 1 1999|