Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-05-13
Nucl.Phys. A622 (1997) 478-496
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 Pages Revtex, 6 Postscript Figures
Scientific paper
10.1016/S0375-9474(97)82592-4
At the Mott transition of a quark/meson plasma, mesons become unbound. This leads to the effect of critical scattering, which is studied by investigating photon pair production due to the process $q\bar q\to\gamma\gamma$. This process can proceed either via direct annihilation or via the formation of a mesonic resonance. It is shown that the latter channel leads to an enhancement of photon pairs with invariant mass equal to the thermal pion mass. The size of this effect measures the time the temperature stays near the Mott temperature during the evolution. It is particularly pronounced for a first order phase transition. The $\pi^0\to\gamma\gamma$ decay gives a strong background contribution and may make the observation of critical scattering in two-photon spectra of present day heavy ion collision experiments difficult.
Blaschke David
Kalinovsky Yu. L.
Rehberg Peter
No associations
LandOfFree
Critical Scattering and Two Photon Spectra for a Quark/Meson Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Critical Scattering and Two Photon Spectra for a Quark/Meson Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical Scattering and Two Photon Spectra for a Quark/Meson Plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-664733