scholarly journals Disentangling two- and four-quark state pictures of the charmed scalar mesons

2005 ◽  
Vol 624 (3-4) ◽  
pp. 217-222 ◽  
Author(s):  
M.E. Bracco ◽  
A. Lozea ◽  
R.D. Matheus ◽  
F.S. Navarra ◽  
M. Nielsen
Keyword(s):  
Scalar Mesons ◽  
Quark State

δ(980)as a four-quark state and the radiative decays of vector and scalar mesons

1979 ◽  
Vol 19 (11) ◽  
pp. 3464-3466 ◽  
Author(s):  
Gary K. Greenhut ◽  
Gerald W. Intemann
Keyword(s):  
Radiative Decays ◽  
Scalar Mesons ◽  
Quark State

scholarly journals ISOSINGLET SCALAR MESONS BELOW 2 GeV AND THE SCALAR GLUEBALL MASS

2004 ◽  
Vol 19 (13) ◽  
pp. 2095-2112 ◽  
Author(s):  
AMIR H. FARIBORZ
Keyword(s):  
Experimental Data ◽  
Scalar Glueball ◽  
Scalar Mesons ◽  
Lagrangian Framework ◽  
Glueball Mass ◽  
Quark State ◽  
Decay Widths ◽  
Chiral Lagrangian

A collective treatment of the I=0 scalar mesons below 2 GeV [σ(550), f0(980), f0(1370), f0(1500) and f0(1710)] in a nonlinear chiral Lagrangian framework that is constrained by the mass and the partial decay widths of the I=1/2,1 scalars [κ(900), [Formula: see text], a0(980) and a0(1450)] is presented. The sub-structure of these states in terms of two and four quark components, as well as a glueball component is explored, and its correlation with the mass of f0(1370) is studied. Consistency with the available experimental data suggests that the σ(550) is dominantly a nonstrange four-quark state, whereas the sub-structure of other I=0 states are sensitive to the input mass of f0(1370). This investigation estimates the scalar glueball mass in the range 1.47–1.64 GeV.

scholarly journals Numerical Solution of the Spinor-Spinor Bethe-Salpeter Equation in Functional Nonlinear Spinor Theory

1975 ◽  
Vol 30 (5) ◽  
pp. 656-671
Author(s):  
W. Bauhoff
Keyword(s):  
Angular Momentum ◽  
Excited State ◽  
Variational Method ◽  
Numerical Solution ◽  
High Precision ◽  
Nonlinear Spinor ◽  
Spinor Theory ◽  
First Order ◽  
Scalar Mesons ◽  
Functional Methods

AbstractThe mass eigenvalue equation for mesons in nonlinear spinor theory is derived by functional methods. In second order it leads to a spinorial Bethe-Salpeter equation. This is solved by a variational method with high precision for arbitrary angular momentum. The results for scalar mesons show a shift of the first order results, obtained earlier. The agreement with experiment is improved thereby. An excited state corresponding to the η' is found. A calculation of a Regge trajectory is included,too.

scholarly journals Influence of the interactions of scalar mesons on the behavior of the symmetry energy

2019 ◽  
Vol 99 (3) ◽  
Author(s):  
Noemi Zabari ◽  
Sebastian Kubis ◽  
Włodzimierz Wójcik
Keyword(s):  
Symmetry Energy ◽  
Scalar Mesons

On the quark content of δ(980) and other scalar mesons

1980 ◽  
Vol 93 (1-2) ◽  
pp. 65-68 ◽  
Author(s):  
A. Bramon ◽  
E. Massó
Keyword(s):  
Scalar Mesons ◽  
Quark Content

f0(S∗): molecule or quark state?

1991 ◽  
Vol 258 (3-4) ◽  
pp. 444-450 ◽  
Author(s):  
D. Morgan ◽  
M.R. Pennington
Keyword(s):  
Quark State

Meson-production and the structure of scalar mesons

2003 ◽  
Vol 721 ◽  
pp. C679-C682
Author(s):  
J. Speth ◽  
F.P. Sassen ◽  
S. Krewald
Keyword(s):  
Meson Production ◽  
Scalar Mesons

scholarly journals Mass spectra of the low-lying nonet scalar mesons in the lattice QCD

2010 ◽  
Vol 3 ◽  
pp. 03010 ◽  
Author(s):  
T. Kunihiro ◽  
S. Muroya ◽  
A. Nakamura ◽  
C. Nonaka ◽  
M. Sekiguchi ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Mass Spectra ◽  
Scalar Mesons
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