TY - JOUR
T1 - Supercooling and final-state effects on dilepton spectra
AU - Srivastava, Dinesh K.
AU - Kapusta, Joseph I
PY - 1993/1/1
Y1 - 1993/1/1
N2 - We consider two problems associated with the production of dileptons during collisions between heavy nuclei at the Brookhaven Relativistic Heavy Ion Collider energy. One is the difference in dilepton yield between an idealized Maxwell construction of phase coexistence and a dynamical phase transition with finite nucleation and phase conversion rates. The other is the contribution from dilepton-producing reactions involving free-streaming hadrons in the final state. We find that the mass spectrum in the range 2mπ<M<2 GeV is dominated by the mixed phase and the final hadron phase, is somewhat sensitive to the degree of supercooling, but is remarkably insensitive to the "freeze-out" temperature which delineates the passage from local thermal equilibrium to free streaming.
AB - We consider two problems associated with the production of dileptons during collisions between heavy nuclei at the Brookhaven Relativistic Heavy Ion Collider energy. One is the difference in dilepton yield between an idealized Maxwell construction of phase coexistence and a dynamical phase transition with finite nucleation and phase conversion rates. The other is the contribution from dilepton-producing reactions involving free-streaming hadrons in the final state. We find that the mass spectrum in the range 2mπ<M<2 GeV is dominated by the mixed phase and the final hadron phase, is somewhat sensitive to the degree of supercooling, but is remarkably insensitive to the "freeze-out" temperature which delineates the passage from local thermal equilibrium to free streaming.
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U2 - 10.1103/PhysRevC.48.385
DO - 10.1103/PhysRevC.48.385
M3 - Article
AN - SCOPUS:0000958917
VL - 48
SP - 385
EP - 388
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 1
ER -