Exploring a possible origin of the QCD critical endpoint

被引:3
作者
Bugaev, K. A. [1 ]
Petrov, V. K. [1 ]
Zinovjev, G. M. [1 ]
机构
[1] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine
关键词
QUARK-GLUON PLASMA; PHASE-TRANSITION; STATISTICAL MULTIFRAGMENTATION; MODEL; THERMODYNAMICS; CHROMODYNAMICS; PHYSICS; LATTICE; MATTER; ORDER;
D O I
10.1134/S1063778813020063
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We develop a new model of the QCD critical endpoint by matching the deconfinement phase transition line of quark-gluon bags with the similar line at which the bag surface tension coefficient vanishes. Unlike all previous studies of such models the deconfined phase in our approach is defined not by an essential singularity of the isobaric partition function but its simple pole. As an unexpected result we find out that the first-order phase transition which is usually defined by a discontinuity of the first derivative of the bag system pressure results from a discontinuity of the derivative of surface tension coefficient of quark-gluon bags.
引用
收藏
页码:341 / 348
页数:8
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