Meson mass at real and imaginary chemical potentials
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, Graduate School of Sciences, Kyushu University, Fukuoka 812-8581 (Japan)
- Department of Physics, Fukuoka University of Education, Munakata, Fukuoka 811-4192 (Japan)
- Department of Physics, Saga University, Saga 840-8502 (Japan)
Chemical-potential dependence of pi and sigma meson masses is analyzed at both real and imaginary chemical potentials, {mu}{sub R} and {mu}{sub I}, by using the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model that possesses both the extended Z{sub 3} symmetry and chiral symmetry. In the {mu}{sub I} region, the meson masses have the Roberge-Weiss periodicity. The {mu}{sub I} dependence of the meson masses becomes stronger as temperature increases. We argue that meson masses and physical quantities in the {mu}{sub R} region will be determined from lattice QCD data on meson masses in the {mu}{sub I} region by using the PNJL model, if the data are measured in the future.
- OSTI ID:
- 21308224
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 7; Other Information: DOI: 10.1103/PhysRevD.79.076008; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Polyakov loop extended Nambu-Jona-Lasinio model with imaginary chemical potential
Nonlocal Ployakov-Nambu-Jona-Lasinio model and imaginary chemical potential
Phase diagram in the imaginary chemical potential region and extended Z{sub 3} symmetry
Journal Article
·
Sat Mar 01 00:00:00 EST 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21308224
+1 more
Nonlocal Ployakov-Nambu-Jona-Lasinio model and imaginary chemical potential
Journal Article
·
Wed Sep 21 00:00:00 EDT 2011
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
·
OSTI ID:21308224
Phase diagram in the imaginary chemical potential region and extended Z{sub 3} symmetry
Journal Article
·
Fri Aug 01 00:00:00 EDT 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21308224
+1 more