Event calendar file
7-12 June 2018
Auditorium Maximum
Europe/Warsaw timezone
15th International Workshop on Meson Production, Properties and Interaction
Auditorium Maximum
-
Exhibition room
Study of the resonance $\psi(4040)$ and its companion poles
Speakers
- Milena PIOTROWSKA
Primary authors
- Milena PIOTROWSKA (Jan Kochanowski University Kielce)
Co-authors
- Dr. Francesco GIACOSA (Frankfurt University)
- Dr. Peter KOVACS (Wigner RCP)
Abstract content
We study the vector state $\psi(4040)$ and its decays into the channels $DD$, $DD^{\ast}$ and $D^{\ast}D^{\ast}$ by making use a QFT approach. We study the spectral function in the vector kaonic sector up to 4.2 GeV and we are looking for the pole(s) in the complex plane. In particular, we perform a fit to the experimental data of the cross-sections of the reactions $e^{+}e^{-}$ into $DD^{\ast}$ and $D^{\ast}D^{\ast}$ and investigate if, besides the standard seed pole corresponding to $\psi(4040)$, other poles exist. A possibility is to describe the meson $Y(4008)$ as a dynamically generated companion pole of $\psi(4040)$.
