The $\rho(1S,2S)$, $\psi(1S,2S)$, $\Upsilon(1S,2S)$ and $\psi_t(1S,2S)$ mesons in a double pole QCD Sum Rule

• Main Authors: de Sousa, M. S. Maior, da Silva, R. Rodrigues
• Format: Journal Article
• Language: English
• Published: 30.05.2012
• Subjects: Physics - High Energy Physics - Phenomenology
• DOI: 10.48550/arxiv.1205.6793

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: $\rho(1S,2S)$, $\psi(1S,2S)$, $\Upsilon(1S,2S)$ and $\psi_t(1S,2S)$. We also present predictions for the toponiuns masses $\psi_t(1S,2S)$ of m(1S)=357 GeV and m(2S)=374 GeV.