scholarly journals Lowest-lying scalar mesons and a possible probe of their quark substructure

1999 ◽  
Author(s):  
Amir H. Fariborz
Keyword(s):  
Scalar Mesons ◽  
Quark Substructure

scholarly journals Probing pseudoscalar and scalar mesons in semileptonic decays of $D_s^+$, D+ and D0

2015 ◽  
Vol 30 (02) ◽  
pp. 1550012 ◽  
Author(s):  
Amir H. Fariborz ◽  
Renata Jora ◽  
Joseph Schechter ◽  
M. Naeem Shahid
Keyword(s):  
Semileptonic Decay ◽  
Semileptonic Decays ◽  
Low Energy ◽  
Linear Sigma Model ◽  
Model Parameters ◽  
Final State ◽  
Decay Channels ◽  
Scalar Mesons ◽  
Pseudoscalar Mesons ◽  
Quark Substructure

With the primary motivation of probing the quark substructure of scalar mesons, a generalized linear sigma model for the lowest and the next-to-lowest scalar and pseudoscalar mesons is employed to investigate several semileptonic decays of D mesons. The free parameters of the model (in its leading approximation) have been previously determined from fits to mass spectra and various low-energy parameters. With these fixed parameters, the model has already given encouraging predictions for different low-energy decays and scattering, as well as for semileptonic decay channels of [Formula: see text] that include a scalar meson in the final state. In the present work, we apply the same model (in its leading order with the same fixed parameters) to different semileptonic decay channels of [Formula: see text], D+ and D0. Although these decay channels produce only pseudoscalar mesons in the final states, since various properties of scalar mesons have been used in fixing the model parameters, this study further tests the model and its predictions for the quark substructure of both pseudoscalar as well as scalar mesons. We find that these predictions are in qualitative agreement with experiment.

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

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

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
Sign in / Sign up

Export Citation Format

Share Document