scholarly journals The quark-meson coupling model and chiral symmetry

2010 ◽  
Author(s):  
Koichi Saito ◽  
Wally Melnitchouk
Keyword(s):  
Chiral Symmetry ◽  
Coupling Model ◽  
Meson Coupling

scholarly journals NUCLEON SIGMA TERM AND IN-MEDIUM QUARK CONDENSATE IN THE MODIFIED Quark–MESON COUPLING MODEL

1999 ◽  
Vol 14 (04) ◽  
pp. 289-297 ◽  
Author(s):  
XUEMIN JIN ◽  
MANUEL MALHEIRO
Keyword(s):  
Chiral Symmetry ◽  
Linear Order ◽  
Coupling Model ◽  
Quark Condensate ◽  
Chiral Symmetry Restoration ◽  
Density Dependent ◽  
Sigma Term ◽  
Meson Coupling ◽  
Model Independent ◽  
Bag Constant

We evaluate the nucleon sigma term and in-medium quark condensate in the modified quark–meson coupling model which features a density-dependent bag constant. We obtain a nucleon sigma term consistent with its empirical value, which requires a significant reduction of the bag constant in the nuclear medium similar to those found in the previous works. The resulting in-medium quark condensate at low densities agrees well with the model-independent linear order result. At higher densities, the magnitude of the in-medium quark condensate tends to increase, indicating no tendency towards chiral symmetry restoration.

scholarly journals Neutron stars within the Bogoliubov quark-meson coupling model

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Aziz Rabhi ◽  
Constança Providência ◽  
Steven A. Moszkowski ◽  
João da Providência ◽  
Henrik Bohr
Keyword(s):  
Neutron Stars ◽  
Coupling Model ◽  
Meson Coupling

Equation of State Grid with the Quark-Meson-Coupling Model

2015 ◽  
Vol 46 (1) ◽  
pp. 111-119 ◽  
Author(s):  
Guilherme Grams ◽  
Alexandre M. Santos ◽  
Débora P. Menezes
Keyword(s):  
Equation Of State ◽  
Coupling Model ◽  
Meson Coupling

scholarly journals Pentaquarks in the medium in the quark-meson coupling model

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
P. K. Panda ◽  
C. Providência ◽  
D. P. Menezes
Keyword(s):  
Coupling Model ◽  
Meson Coupling

scholarly journals The Quark-Meson Coupling model as a description of dense matter

2011 ◽  
Author(s):  
J. D. Carroll ◽  
David Armstrong ◽  
Volker Burkert ◽  
Jian-Ping Chen ◽  
Will Detmold ◽  
...  
Keyword(s):  
Dense Matter ◽  
Coupling Model ◽  
Meson Coupling

Multi-lambda matter in a quark - meson coupling model

1997 ◽  
Vol 23 (5) ◽  
pp. 557-564 ◽  
Author(s):  
L L Zhang ◽  
H Q Song ◽  
R K Su
Keyword(s):  
Coupling Model ◽  
Meson Coupling
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