Strangelet search in S-W collisons at 200

Appelquist, G.; Baglin, C.; Böhm, C.; Borer, K.; Bussiére, A.; Elsener, K.; Dittus, F.; Frei, D.; Guillaud, J.P.; Hovander, B.; Klingenberg, R.; Lohmann, K D; Hugentobler, E.; Moser, U.; Pretzl, K.; Schacher, J.; Selldén, B.; Stoffel, F.; Volken, W.; Zhang, Q.P.

doi:10.1016/0375-9474(94)90680-7

Cited by 2 publications

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“…We note that such strangeness distillation has been foreseen to occur [17], and specifically in this manner if QGP phase hadronizes at temperatures found in our fits of the data [18]. This dynamical distillation process stimulated several searches for strangeletts, i.e., (quasi) stable highly strange hadrons with more than three strange quarks [19,20]. …”

Section: Analysis Of Experimental Resultssupporting

confidence: 51%

Chemical nonequilibrium and deconfinement in 200AGeV sulphur induced reactions

Letessier

Rafelski

1999

Phys. Rev. C

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We interpret hadronic particle abundances produced in S-Au/W/Pb 200 A GeV reactions in terms of the final state hadronic phase space model and determine by a data fit of the chemical hadron freeze-out parameters. Allowing for the flavor abundance non-equilibrium a highly significant fit to experimental particle abundance data emerges, which supports possibility of strangeness distillation. We find under different strategies stable values for freeze-out temperature T f = 143 ± 3 MeV, baryochemical potential µ B = 173 ± 6 MeV, ratio of strangeness (γ s ) and light quark (γ q ) phase space occupancies γ s /γ q = 0.60 ± 0.02, and γ q = 1.22 ± 0.05 without accounting for collective expansion (radial flow). When introducing flow effects which allow a consistent description of the transverse mass particle spectra, yielding | v c | = 0.49 ± 0.01 c, we find γ s /γ q = 0.69 ± 0.03 , γ q = 1.41 ± 0.08. The strange quark fugacity is fitted at λ s = 1.00 ± 0.02 suggesting chemical freeze-out directly from the deconfined phase.

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Section: Analysis Of Experimental Resultssupporting

confidence: 51%

Chemical nonequilibrium and deconfinement in 200AGeV sulphur induced reactions

Letessier

Rafelski

1999

Phys. Rev. C

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Physics and signatures of the quark-gluon plasma

Müller

1995

Rep. Prog. Phys.

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This is a critical review of the various observables that have been proposed to signal the change from dense hadronic matter to a quark-gluon plasma at high temperature or baryon density. I discuss current models of quark-gluon plasma formation in relativistic heavy ion collisions and analyze the virtues and ambiguities of various signatures. * Review article prepared for Report of Progress in Physics

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Strangelet search in S-W collisons at 200

Cited by 2 publications

References 1 publication

Chemical nonequilibrium and deconfinement in 200AGeV sulphur induced reactions

Chemical nonequilibrium and deconfinement in 200AGeV sulphur induced reactions

Physics and signatures of the quark-gluon plasma

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