The ρ(1S, 2S), ψ(1S, 2S), Υ(1S, 2S) and ψt(1S, 2S) Mesons in a Double Pole QCD Sum Rule

We use the method of double pole QCD sum rule, which is basically a fit with two exponentials of the correlation function, where we can extract the masses and decay constants of mesons as a function of the Borel mass. We apply this method to study the mesons: ρ (1 S ,2 S ), ψ (1 S ,2 S ), Υ(1 S ,2 S...

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Bibliographic Details
Published in:Brazilian journal of physics 2016-12, Vol.46 (6), p.730-739
Main Authors: Maior de Sousa, M. S., da Silva, R. Rodrigues
Format: Article
Language:English
Subjects:
Mesons
Nuclear Physics
Physics
Physics and Astronomy
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Summary:We use the method of double pole QCD sum rule, which is basically a fit with two exponentials of the correlation function, where we can extract the masses and decay constants of mesons as a function of the Borel mass. We apply this method to study the mesons: ρ (1 S ,2 S ), ψ (1 S ,2 S ), Υ(1 S ,2 S ), and ψ t (1 S ,2 S ). We also present predictions for the toponiuns masses ψ t (1 S ,2 S ) of m (1 S )=357 GeV and m (2 S )=374 GeV.
ISSN:0103-9733
1678-4448
DOI:10.1007/s13538-016-0449-9