Suppression of Dilepton Production in Hot Hadronic Matter
Abstract
Dilepton production from pion-pion annihilation in a hot hadronic matter is studied using an effective chiral Lagrangian that includes explicitly vector mesons. We find that the production rate for dileptons with invariant masses around the rho-meson resonance is suppressed as a result of the modification of the pion electromagnetic form factor at finite temperature. The relevance of this phenomenon to the partial restoration of chiral symmetry in hot hadronic matter is discussed.
Description
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QUARK-GLUON PLASMAQCD SUM-RULES
FINITE-TEMPERATURE
NUCLEAR
COLLISIONS
PHASE-TRANSITION
VECTOR-MESONS
SIGNATURE
EMISSION
DYNAMICS
PROBE
Physics