A model for quark-gluon plasma with pentaquark baryons and tetraquark mesons

作者：Kaushal R S^*

来源：Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science, 2008, 82(7): 891-906.

• quark-gluon plasma
• Saha ionization formula
• color-ionic fraction
• bubble nucleation mechanism

With a view to exploring a new kind of phase transition in the process of hadronization of quark gluon plasma (QGP) we investigate the occurrence of pentaquark baryons and tetraquark mesons in the system. For this purpose, an analogue of Saha's ionization formula for the colored ions in the system is used. The study of color-ionic-fraction (CIF) of multiple (color) ionized to unionized quark clusters (termed as "quarkons") as a function of temperature is carried out. It is pointed out that not only the temperature of the fire-ball in the relativistic heavy ion collisions evolves with respect to space and time but also the CIF associated with a particular stage of ionization. Further, for the case of single color-ionization a correspondence of the present results with those available for the bubble nucleation mechanism in QGP is demonstrated.

• 出版日期2008-7