| Issue |
EPL
Volume 85, Number 2, January 2009
|
|
|---|---|---|
| Article Number | 22002 | |
| Number of page(s) | 6 | |
| Section | Nuclear Physics | |
| DOI | https://doi.org/10.1209/0295-5075/85/22002 | |
| Published online | 20 January 2009 | |
Fresh look at the Hagedorn mass spectrum as seen in the experiments
Bogolyubov Institute for Theoretical Physics, National Academy of Science of Ukraine - Kiev, Ukraine
Corresponding author: bugaev@th.physik.uni-frankfurt.de
Received:
29
July
2008
Accepted:
9
December
2008
The medium-dependent finite width is introduced into an exactly solvable model with the general mass-volume spectrum of the QGP bags. The model allows us to estimate the minimal value of the QGP bags' width from the lattice QCD data. The large width of the QGP bags not only explains the observed deficit in the number of hadronic resonances comparing to the Hagedorn mass spectrum, but also clarifies the reason why the heavy QGP bags cannot be directly observed as metastable states in a hadronic phase.
PACS: 25.75.-q – Relativistic heavy-ion collisions / 25.75.Dw – Particle and resonance production / 25.75.Nq – Quark deconfinement, quark-gluon plasma production, and phase transitions
© EPLA, 2009
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