Volume 76, Number 3, November 2006
|Page(s)||402 - 408|
|Published online||27 September 2006|
The Hagedorn thermostat
Nuclear Science Division, Lawrence Berkeley National Laboratory Berkeley, CA, USA
2 Bogolyubov Institute for Theoretical Physics - Kiev, Ukraine
Accepted: 8 September 2006
At variance with previous understanding, a system with a Hagedorn-like mass spectrum can sustain the unique temperature encoded in the spectrum itself. imposes the same temperature to all emitted particles which are then in physical and chemical equilibrium with and with each other. Coexistence between hadronic and partonic phases is thus completely characterized. This may explain the recurring constant physical and chemical temperature observed in several experiments. The near indifference of to fragmentation or coalescence makes this approach relevant to heavy-ion and elementary-particle collisions alike. The equation of state for a gas of systems has been derived.
PACS: 25.75.Nq – Quark deconfinement, quark-gluon plasma production, and phase transitions
© EDP Sciences, 2006
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