Phase conversion in a weakly first-order quark-hadron transition

Moreira, André Bessa; Fraga, Eduardo Souza; Mintz, Bruno Werneck

Phase conversion in a weakly first-order quark-hadron transition

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dc.contributor.author	Moreira, André Bessa
dc.contributor.author	Fraga, Eduardo Souza
dc.contributor.author	Mintz, Bruno Werneck
dc.date.accessioned	2020-08-11T14:08:27Z
dc.date.available	2020-08-11T14:08:27Z
dc.date.issued	2009-02-12
dc.description.resumo	We investigate the process of phase conversion in a thermally driven weakly first-order quark-hadron transition. This scenario is physically appealing even if the nature of this transition in equilibrium proves to be a smooth crossover for vanishing baryonic chemical potential. We construct an effective potential by combining the equation of state obtained within lattice QCD for the partonic sector with that of a gas of resonances in the hadronic phase, and present numerical results on bubble profiles, nucleation rates, and time evolution, including the effects from reheating on the dynamics for different expansion scenarios. Our findings confirm the standard picture of a cosmological first-order transition, in which the process of phase conversion is entirely dominated by nucleation, also in the case of a weakly first-order transition. On the other hand, we show that, even for expansion rates much lower than those expected in high-energy heavy-ion collisions, nucleation is very unlikely, indicating that the main mechanism of phase conversion is spinodal decomposition. Our results are compared to those obtained for a strongly first-order transition, as the one provided by the MIT bag model	pt_BR
dc.identifier.citation	BESSA, A.; FRAGA, E. S.; MINTZ, B. W.. Phase conversion in a weakly first-order quark-hadron transition. Physical Review D, [S.L.], v. 79, n. 3, p. 3-4, 12 fev. 2009. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.79.034012. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1103/physrevd.79.034012	pt_BR
dc.identifier.doi	10.1103/PhysRevD.79.034012
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29793
dc.language	en	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Phase conversion	pt_BR
dc.subject	Quark-hadron transition	pt_BR
dc.title	Phase conversion in a weakly first-order quark-hadron transition	pt_BR
dc.type	article	pt_BR