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Sep 5 – 9, 2022
online
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The new LHCb state $X(3960)$ seen in $D_{s}^{+} D_{s}^{-}$ should be the same as the $X(3930)$ seen in $D^{+} D^{-}$

Sep 7, 2022, 2:05 PM
20m
online

online

FSU, Tallahassee, FL, USA
oral presentation Hadron Spectroscopy

Speaker

Melahat Bayar (Kocaeli University Department of Physics)

Description

We perform a calculation of the interaction of the $ D \bar{D} $, $ D_{s} \bar{D}_{s} $ coupled channels and find two bound states, one coupling to $ D \bar{D} $ and another one at higher energies coupling mostly to $D_{s}^{+} D_{s}^{-}$. We identify this latter state with the $X_{0}(3930)$ seen in the $D^{+} D^{-}$ mass distribution in the $B^+ \to D^{+} D^{-} K^{+} $ decay, and also show that it produces an enhancement of the $D_{s}^{+} D_{s}^{-}$ mass distribution close to threshold which is compatible with the LHCb recent observation in the $B^+ \to D_{s}^{+} D_{s}^{-} K^{+} $ decay which has been identified as a new state, $X_{0}(3960)$.

speaker affiliation Kocaeli University, Department of Physics

Primary authors

Melahat Bayar (Kocaeli University Department of Physics) Dr Albert Feijoo Aliau (Nuclear Physics Institute, 25068 Rez, Czech Republic) Prof. Eulogio Oset (F\'{\i}sica Te\'orica and IFIC, Centro Mixto Universidad de Valencia-CSIC )

Presentation materials