Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-02-06
Z.Phys.C76:269-286,1997; Erratum-ibid.C76:578,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
41 pages, 11 .eps figures, published in Z. Phys. C Revision - Corrections of two formulae in Sect. 5
Scientific paper
10.1007/s002880050551
It is shown that the hadron production in high energy pp and p{\bar p} collisions, calculated by assuming that particles originate in hadron gas fireballs at thermal and partial chemical equilibrium, agrees very well with the data. The temperature of the hadron gas fireballs, determined by fitting hadron abundances, does not seem to depend on the centre of mass energy, having a nearly constant value of about 170 MeV. This value is in agreement with that obtained in e^+e^- collisions and supports a universal hadronization mechanism in all kinds of reactions consisting in a parton-hadron transition at critical values of temperature and pressure.
Becattini Francesco
Heinz Ulrich
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