Effects of Mixing Between Low and High Mass Scalar Mesons for Radiative Decays Involving f0(98O) and a0(980)

2006 ◽  
Author(s):  
T. Teshima
2005 ◽  
Vol 759 (1-2) ◽  
pp. 131-142 ◽  
Author(s):  
T. Teshima ◽  
I. Kitamura ◽  
N. Morisita

1978 ◽  
Vol 17 (7) ◽  
pp. 1731-1749 ◽  
Author(s):  
W. Tanenbaum ◽  
M. S. Alam ◽  
A. M. Boyarski ◽  
M. Breidenbach ◽  
G. J. Feldman ◽  
...  
Keyword(s):  

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.


Author(s):  
DEIRDRE BLACK ◽  
MASAYASU HARADA ◽  
JOSEPH SCHECHTER

1997 ◽  
Vol 623 (1-2) ◽  
pp. 142-150 ◽  
Author(s):  
Alex R. Dzierba

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