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Heavy ion collisions; relativistic hydrodynamics; quark-gluon phase; dimuon mass spectrum

The mass spectrum of dimuons produced from the matter in the central region of rapidity in ultra-relativistic heavy-ion collisions is calculated in accordance with Bjorken’s recently proposed model for relativistic heavy-ion collisions. The matter in this central region is assumed to consist of a deconfined quark-gluon plasma phase and a pionized phase. Distinct enhancements of the dimuon mass spectrum below 500 MeV, due to the quark-gluon phase, are predicted for a deconfinement phase-transition temperatureT_c<200 MeV.

D Syam¹

1. Saha Institute of Nuclear Physics, 92, A.P.C. Road, Calcutta - 700 009, India

Published

January 1984

Manuscript received

9 September 1983

Manuscript revised

28 November 1983