Polarization of Lambda^0 hyperons as a signature for the Quark-Gluon Plasma

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dc.creatorBerdnikov, A. Ya.
dc.creatorBerdnikov, Ya. A.
dc.creatorIvanov, A. N.
dc.creatorIvanova, V. A.
dc.creatorKosmach, V. F.
dc.creatorSamsonov, V. M.
dc.creatorTroitskaya, N. I.
dc.creatorVento, V. Thatar
dc.date2003-12-14
dc.date.accessioned2026-07-07T11:44:19Z
dc.date.available2026-07-07T11:44:19Z
dc.descriptionThe momentum distribution of Lambda^0 hyperons produced from the quark-gluon plasma (QGP) in ultra-relativistic heavy-ion collisions is calculated in dependence on their polarization. The momentum distribution of Lambda^0 hyperons is defined by matrix elements of relativistic quark Wigner operators, which are calculated within the Effective quark model with chiral U(3)xU(3) symmetry and the Quark-Gluon transport theory. We show that the polarization of the Lambda^0 hyperon depends of the spin of the strange quark that agrees well with the DeGrand-Miettinen model. We show that Lambda^0 hyperons, produced from the QGP, are fully unpolarized. This means that a detection of unpolarized Lambda^0 hyperons, produced in ultra-relativistic heavy-ion collisions, should serve as one of the signatures for the existence of the QGP in intermediate states of ultra-relativistic heavy-ion collisions.
dc.description17 pages, no figure, latex
dc.identifierhttps://arxiv.org/abs/nucl-th/0312045
dc.identifierhttp://arxiv.org/abs/nucl-th/0312045
dc.identifierActaPhys.Hung.A22:139-147,2005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201561
dc.subjectNuclear Theory
dc.titlePolarization of Lambda^0 hyperons as a signature for the Quark-Gluon Plasma
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