Neutral Kaon System in Dense Matter and Heavy-Ion Collisions

Details Neutral Kaon System in Dense Matter and Heavy-Ion Collisions Neutral Kaon System in Dense Matter and Heavy-Ion Collisions

1999-07-27

arxiv.org/abs/hep-ph/9907508v1

Phys.Lett. B465 (1999) 291-296

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages

Scientific paper

10.1016/S0370-2693(99)01056-4

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 real and imaginary parts of the energies of these modes and their mixing at all densities up to nuclear matter density $2\times 10^{14}$ g/cm$^3$. In 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) eigenstates of CP. We estimate the critical density to be 20 g/cm$^3$, and that this density will be reached about $2\times 10^5$ fm/c after the end of the collision.

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