Speaker
Dr
Tamal Kumar Mukherjee
(Institute of High Energy Physics, Chinese Academy of Sciences)
Description
In the framework of two flavor quark-meson model we study
the effect of mixing between effective quarkonium and
tetraquark fields on chiral phase transition. The physical
mass spectrum of mesons put a tight constraint on the
parameter set of our model. We find a sufficiently strong
cubic self interaction of the tetraquark field can drive
the chiral phase transition to first order even at zero
quark chemical potential. Weak or absence of the cubic
self interaction term of the tetraquark field make the
chiral pahse transition crossover at vanishing density.
Primary author
Dr
Tamal Kumar Mukherjee
(Institute of High Energy Physics, Chinese Academy of Sciences)
Co-author
Prof.
Mei Huang
(Institute of High Energy Physics, CAS)
