DEFORMED STRANGELETS AT FINITE-TEMPERATURE

Citation
Mg. Mustafa et A. Ansari, DEFORMED STRANGELETS AT FINITE-TEMPERATURE, Physical review. C. Nuclear physics, 56(1), 1997, pp. 420-425
Citations number
17
Categorie Soggetti
Physics, Nuclear
ISSN journal
05562813
Volume
56
Issue
1
Year of publication
1997
Pages
420 - 425
Database
ISI
SICI code
0556-2813(1997)56:1<420:DSAF>2.0.ZU;2-O
Abstract
Considering the confinement of massless u and d quarks and massive s q uarks in an axially symmetric quadrupole shaped deformable bag, the st ability properties of color-singlet strangelets at finite temperatures are studied for the baryon number A less than or equal to 100. It is found that, in general, at each A the energy of the strangelet is the lowest for the spherical shape. However, it is interesting to find she ll structures for the deformed shapes at some new A values, not found for the spherical shape. This should be of relevance for the experimen tal search of strangelets. The color projected (singlet) calculation s hows that even for the deformed shapes the shell structures vanish onl y for the temperature, T greater than or similar to 30 MeV. On the oth er hand, from a somewhat crude estimate we also find that at a fixed e ntropy per baryon (instead of a fixed temperature) of the order of uni ty or higher these shell structures disappear.