scholarly journals Vector and axial-vector mesons at nonzero temperature within a gauged linear sigma model

2008 ◽  
Vol 77 (8) ◽  
Author(s):  
Stefan Strüber ◽  
Dirk H. Rischke
2013 ◽  
Vol 87 (1) ◽  
Author(s):  
D. Parganlija ◽  
P. Kovács ◽  
Gy. Wolf ◽  
F. Giacosa ◽  
D. H. Rischke

2011 ◽  
Vol 26 (03n04) ◽  
pp. 607-609 ◽  
Author(s):  
DENIS PARGANLIJA ◽  
FRANCESCO GIACOSA ◽  
DIRK H. RISCHKE ◽  
PÉTER KOVÁCS ◽  
GYŐRGY WOLF

We outline the extension of the globally chirally invariant Nf = 2 linear sigma model with vector and axial-vector degrees of freedom to Nf = 3. We present preliminary results concerning the scalar meson masses.


2013 ◽  
Author(s):  
D. Parganlija ◽  
P. Kovács ◽  
Gy. Wolf ◽  
F. Giacosa ◽  
D. H. Rischke

2009 ◽  
Vol 80 (11) ◽  
Author(s):  
Amir H. Fariborz ◽  
N. W. Park ◽  
Joseph Schechter ◽  
M. Naeem Shahid

2009 ◽  
Vol 2009 (11) ◽  
pp. 007-007 ◽  
Author(s):  
William D Linch ◽  
Brenno Carlini Vallilo

2010 ◽  
Vol 25 (01) ◽  
pp. 25-33 ◽  
Author(s):  
MYUNG-KI CHEOUN ◽  
C. Y. RYU

We evaluate mass differences between a neutron and a proton, and between a charged and a neutral meson by using a gauged linear sigma model retaining the chiral SU (2) L × SU (2) R × U (1)V symmetry. Masses of nucleons and relevant mesons are generated through the spontaneous and the explicit chiral symmetry breaking. Since our Lagrangian includes explicitly SU(2) isospin symmetry breaking term, it enables us to simultaneously consider the mass differences of a neutron and a proton, and a charged meson and a neutral one. Their reciprocal relations of the mass differences are also derived, where radiative corrections due to electromagnetic interactions are deliberately taken into account to exactly obtain the isospin symmetry breaking effect in the particle mass differences.


2011 ◽  
Author(s):  
Denis Parganlija ◽  
Francesco Giacosa ◽  
Péter Kovács ◽  
György Wolf

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