scholarly journals Radiative decays of light vector mesons in a quark level linear sigma model

2003 ◽  
Vol 67 (3) ◽  
Author(s):  
M. Napsuciale ◽  
S. Rodriguez ◽  
E. Alvarado-Anell
Keyword(s):  
Sigma Model ◽  
Radiative Decays ◽  
Linear Sigma Model ◽  
Vector Mesons ◽  
Light Vector ◽  
Quark Level

scholarly journals On the Dynamical Generation of Quark-Level-Linear-Sigma-Model-like Theories beyond one Loop

2008 ◽  
Author(s):  
Frieder Kleefeld ◽  
George Rupp ◽  
Eef van Beveren ◽  
Pedro Bicudo ◽  
Brigitte Hiller ◽  
...  
Keyword(s):  
Sigma Model ◽  
Linear Sigma Model ◽  
Dynamical Generation ◽  
Quark Level

scholarly journals DYNAMICAL GENERATION OF THE GAUGED SU(2) LINEAR SIGMA MODEL

1995 ◽  
Vol 10 (03) ◽  
pp. 251-266 ◽  
Author(s):  
R. DELBOURGO ◽  
M. D. SCADRON
Keyword(s):  
Sigma Model ◽  
Decay Constant ◽  
Chiral Limit ◽  
Linear Sigma Model ◽  
Coupling Constant ◽  
Vector Coupling ◽  
Dynamical Generation ◽  
Meson Coupling ◽  
Quark Level ◽  
The Masses

The fermion and meson sectors of the quark-level SU(2) linear sigma model are dynamically generated from a meson–quark Lagrangian, with the quark (q) and meson (σ, π) fields all treated as elementary, having neither bare masses nor expectation values. In the chiral limit, the masses are predicted to be mq = fπg, mπ = 0, mσ = 2mq, and we also find that the quark–meson coupling is [Formula: see text], the three-meson coupling is [Formula: see text] and the four-meson coupling is λ = 2g2 = g′/fπ, where fπ ≃ 90 MeV is the pion decay constant and Nc = 3 is the color number. By gauging this model one can generate the couplings to the vector mesons ρ and A1, including the quark–vector coupling constant gρ = 2π, gρππ, gA1ρπ and the masses mρ ~ 700 MeV, [Formula: see text]; of course the vector and axial currents remain conserved throughout.

scholarly journals On the radiative decays of light vector and axial-vector mesons

2008 ◽  
Vol 813 (1-2) ◽  
pp. 96-170 ◽  
Author(s):  
M.F.M. Lutz ◽  
S. Leupold
Keyword(s):  
Axial Vector ◽  
Radiative Decays ◽  
Vector Mesons ◽  
Light Vector

scholarly journals Glueball in a chiral linear sigma model with vector mesons

2011 ◽  
Vol 84 (5) ◽  
Author(s):  
Stanislaus Janowski ◽  
Denis Parganlija ◽  
Francesco Giacosa ◽  
Dirk H. Rischke
Keyword(s):  
Sigma Model ◽  
Linear Sigma Model ◽  
Vector Mesons

scholarly journals Radiative decays of light vector mesons

2000 ◽  
Vol 675 (1-2) ◽  
pp. 213-216 ◽  
Author(s):  
M.N Achasov ◽  
S.E Baru ◽  
K.I Beloborodov ◽  
A.V Berdyugin ◽  
A.V Bozhenok ◽  
...  
Keyword(s):  
Radiative Decays ◽  
Vector Mesons ◽  
Light Vector

scholarly journals Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons

2013 ◽  
Vol 87 (1) ◽  
Author(s):  
D. Parganlija ◽  
P. Kovács ◽  
Gy. Wolf ◽  
F. Giacosa ◽  
D. H. Rischke
Keyword(s):  
Sigma Model ◽  
Axial Vector ◽  
Linear Sigma Model ◽  
Vector Mesons

scholarly journals A LINEAR SIGMA MODEL WITH THREE FLAVORS AND VECTOR AND AXIAL-VECTOR MESONS

2011 ◽  
Vol 26 (03n04) ◽  
pp. 607-609 ◽  
Author(s):  
DENIS PARGANLIJA ◽  
FRANCESCO GIACOSA ◽  
DIRK H. RISCHKE ◽  
PÉTER KOVÁCS ◽  
GYŐRGY WOLF
Keyword(s):  
Degrees Of Freedom ◽  
Sigma Model ◽  
Scalar Meson ◽  
Axial Vector ◽  
Linear Sigma Model ◽  
Vector Mesons ◽  
Preliminary Results

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.

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