Strange hadrons and their resonances: A Diagnostic tool of QGP freezeout dynamics - INSPIRE

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Strange hadrons and their resonances: A Diagnostic tool of QGP freezeout dynamics

Apr, 2001

8 pages

Published in:

Phys.Rev.C 64 (2001) 054907,
Phys.Rev.C 65 (2002) 069902 (erratum)

e-Print:

nucl-th/0104042 [nucl-th]

DOI:

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Abstract: (arXiv)

We update our chemical analysis of (strange) hadrons produced at the SPS in Pb--Pb collisions at 158A GeV and and present a first chemical analysis of RHIC results. We report that the shape of (anti)hyperon m_T-spectra in a thermal freeze-out analysis leads to freeze-out conditions found in chemical analysis, implying sudden strange hyperon production. We discuss how a combined analysis of several strange hadron resonances of differing lifespan can be used to understand the dynamical process present during chemical and thermal freeze-outs. In medium resonance quenching is considered.

Note:

7 pages including figures; published version with UPDATED figures, including experimental results and small numerical corrections

scattering: heavy ion
lead
quark gluon: plasma
hadronization
strange particle: hadroproduction
yield: (hyperon antihyperon)
mass spectrum: transverse
fireball
thermodynamics
temperature dependence

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