scholarly journals QCD sum rule approach for the light scalar mesons as four-quark states

2005 ◽  
Vol 608 (1-2) ◽  
pp. 69-76 ◽  
Author(s):  
Thiago V. Brito ◽  
Fernando S. Navarra ◽  
Marina Nielsen ◽  
Mirian E. Bracco
Keyword(s):  
Sum Rule ◽  
Scalar Mesons ◽  
Rule Approach ◽  
Light Scalar

scholarly journals SemileptonicDdecay into scalar mesons: A QCD sum rule approach

2002 ◽  
Vol 65 (11) ◽  
Author(s):  
H. G. Dosch ◽  
E. M. Ferreira ◽  
F. S. Navarra ◽  
M. Nielsen
Keyword(s):  
Sum Rule ◽  
Scalar Mesons ◽  
Rule Approach

scholarly journals SCALAR TETRAQUARK CURRENTS WITH APPLICATION TO THE QCD SUM RULE

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2234-2237 ◽  
Author(s):  
HUA-XING CHEN ◽  
ATSUSHI HOSAKA ◽  
SHI-LIN ZHU
Keyword(s):  
Color Singlet ◽  
Sum Rule ◽  
Color Octet ◽  
Scalar Mesons ◽  
Light Scalar ◽  
The Masses ◽  
By Products

We study the light scalar mesons in the QCD sum rule. We construct both the diquark-antidiquark currents [Formula: see text] and the meson-meson currents [Formula: see text]. We find that there are five independent currents for both cases, and derive the relations between them. For the meson-meson currents, five independent currents are formed by products of color singlet [Formula: see text] pairs or color octet pairs. However, they can be related to each other, and the relations are derived. We obtain the masses of the light scalar mesons which are consistent with the experiments.

scholarly journals Light Scalar Mesons in the QCD Sum Rule

2007 ◽  
Vol 168 ◽  
pp. 186-189 ◽  
Author(s):  
Hua-Xing Chen ◽  
Atsushi Hosaka ◽  
Shi-Lin Zhu
Keyword(s):  
Sum Rule ◽  
Scalar Mesons ◽  
Light Scalar

A collisional model for light scalar mesons

2017 ◽  
Vol 32 (34) ◽  
pp. 1750179
Author(s):  
S. S. Afonin
Keyword(s):  
Simple Explanation ◽  
Decay Modes ◽  
Scalar Mesons ◽  
Light Scalar ◽  
The Given ◽  
Scalar Sector

A collisional model for hadron resonances appearing in hadron collisions is proposed. The given approach leads to a simple explanation of the scalar sector below 1 GeV with correct predictions for masses and dominant decay modes.

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