| Issue |
Europhys. Lett.
Volume 56, Number 3, November 2001
|
|
|---|---|---|
| Page(s) | 361 - 366 | |
| Section | The physics of elementary particles and fields | |
| DOI | https://doi.org/10.1209/epl/i2001-00112-5 | |
| Published online | 01 December 2003 | |
Quark mass density- and temperature-dependent model for strange quark matter
1
Department of Physics, Fudan University - Shanghai
200433, PRC
2
China Center of Advanced
Science and Technology (World Laboratory)
P.O. Box 8730, Beijing 100080, PRC
3
Institute of High Energy Physics - P.O.
Box 918, Beijing 100080, PRC
Received:
11
January
2001
Accepted:
20
August
2001
It is found that the radius of a stable strangelet decreases as
the temperature increases in a quark mass density-dependent
model. To overcome this difficulty, we extend this model to a
quark mass density- and temperature-dependent model in which the
vacuum energy density at zero baryon density limit B depends on
temperature. An ansatz which reads
![$B=B_0[1-a({T/T_\ab{c}})+b({T/T_\ab{c}})^2]$](/articles/epl/abs/2001/21/6781/6781_tex_eq1.png)
is introduced and
the regions for the best choice of the parameters are studied.
PACS: 12.39.Ki – Relativistic quark model / 21.65.+f – Nuclear matter / 25.75.Dw – Particle and resonance production
© EDP Sciences, 2001
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