Analysis of the Scalar Meson $f_{0}$(980) as a Bound State of Two $eta$ Mesons within the QCD Sum Rule Including the Contribution from the Instanton

2014 ◽  
Vol 64 (5) ◽  
pp. 526-530
Author(s):  
Hee-Jung LEE*
Keyword(s):  
2006 ◽  
Vol 21 (20) ◽  
pp. 1625-1628 ◽  
Author(s):  
MAO-ZHI YANG

The decay constant of [Formula: see text] is the key quantity to determine the production rate of [Formula: see text] in τ decays. By assuming [Formula: see text] is the lowest scalar bound state of [Formula: see text], the decay constant can be calculated reliably in QCD sum rule. Then the decay branching ratio of [Formula: see text] is predicted to be about (7.9±3.1)×10-5. If this branching ratio can be measured by experiment, it should be helpful to make clear the structure of [Formula: see text].


2011 ◽  
Vol 61 (6) ◽  
pp. 586-589 ◽  
Author(s):  
Hee-Jung LEE*
Keyword(s):  

2010 ◽  
Vol 60 (6) ◽  
pp. 648-652
Author(s):  
Hee Jung LEE*
Keyword(s):  

2013 ◽  
Vol 87 (11) ◽  
Author(s):  
Hee-Jung Lee ◽  
N. I. Kochelev ◽  
Yongseok Oh
Keyword(s):  

2005 ◽  
Vol 619 (1-2) ◽  
pp. 105-114 ◽  
Author(s):  
Dong-Sheng Du ◽  
Jing-Wu Li ◽  
Mao-Zhi Yang
Keyword(s):  

1978 ◽  
Vol 56 (11) ◽  
pp. 1447-1449 ◽  
Author(s):  
G. Boutin ◽  
B. Goulard ◽  
J. Torre

The augmentation κ of the classical Thomas–Reiche–Kuhn dipole sum rule for A = 3 nuclei is calculated using the Laverne–Gignoux bound state wave functions previously obtained by solving the Faddeev equations in the coordinate representation. Values of κ are in overall agreement with the published results of Drechsel and Kim, which, however, display a distribution at variance from our results.


2016 ◽  
Vol 93 (9) ◽  
Author(s):  
C. M. Zanetti ◽  
M. Nielsen ◽  
K. P. Khemchandani
Keyword(s):  

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