Scalar Mesons Effects in Radiative Decays of Vector Mesons

Author(s):  
Mauro Napsuciale
1979 ◽  
Vol 80 (4-5) ◽  
pp. 381-384 ◽  
Author(s):  
A. Billoire ◽  
R. Lacaze ◽  
A. Morel ◽  
H. Navelet

1976 ◽  
Vol 36 (5) ◽  
pp. 241-244 ◽  
Author(s):  
B. J. Edwards ◽  
A. N. Kamal

1983 ◽  
Vol 27 (3) ◽  
pp. 692-695 ◽  
Author(s):  
Alberto Devoto ◽  
Wayne W. Repko

2014 ◽  
Vol 2014 ◽  
pp. 1-21 ◽  
Author(s):  
Arvind Kumar

In this work we shall investigate the mass modifications of scalar mesons (D0;B0), vector mesons (D*;B*), and axial-vector mesons (D1;B1) at finite density and temperature of the nuclear medium. The above mesons are modified in the nuclear medium through the modification of quark and gluon condensates. We will find the medium modification of quark and gluon condensates within chiral SU(3) model through the medium modification of scalar-isoscalar fieldsσandζat finite density and temperature. These medium modified quark and gluon condensates will further be used through QCD sum rules for the evaluation of in-medium properties of the above mentioned scalar, vector, and axial vector mesons. We will also discuss the effects of density and temperature of the nuclear medium on the scattering lengths of the above scalar, vector, and axial-vector mesons. The study of the medium modifications of the above mesons may be helpful for understanding their production rates in heavy-ion collision experiments. The results of present investigations of medium modifications of scalar, vector, and axial-vector mesons at finite density and temperature can be verified in the compressed baryonic matter (CBM) experiment of FAIR facility at GSI, Germany.


Open Physics ◽  
2010 ◽  
Vol 8 (4) ◽  
Author(s):  
Mikhail Volkov ◽  
Eduard Kuraev ◽  
Yury Bystritskiy

AbstractThe two-photon decay widths of scalar mesons σ(600), f 0(980) and a 0(980) as well a 0 → ju(ω)γ and f 0 → ju(ω)γ are calculated in the framework of the local Nambu-Jona-Lasinio model. The contributions of the quark loops (Hartree-Fock approximation) and the meson loops (next 1/N c-approximation where N c is the number of colors) are taken into account. The values of these contributions, as we show, are of the same order of magnitude. For the f 0 decay the K-loop contribution plays the dominant role. The results for two-gamma decays are in satisfactory agreement with modern experimental data. The predictions for a 0 → ju(ω)γ and f 0 → ju(ω)γ widths are given.


1989 ◽  
Vol 39 (7) ◽  
pp. 2072-2074
Author(s):  
C. P. Singh ◽  
S. K. Das ◽  
C. P. S. Verma

1982 ◽  
Vol 26 (1) ◽  
pp. 332-334 ◽  
Author(s):  
C. P. Singh ◽  
P. K. Chatley

Sign in / Sign up

Export Citation Format

Share Document