PoS - Proceedings of Science
Volume 336 - XIII Quark Confinement and the Hadron Spectrum (Confinement2018) - C: Heavy quarks
On the origin of Y(4260) and the $J^{PC}=1^{--}$ exotic mesons
S. Takeuchi,* M. Takizawa
*corresponding author
Full text: pdf
Pre-published on: September 12, 2019
Published on: September 26, 2019
The $q{\bar q} s{\bar s}$ and $q{\bar q} c{\bar c}$ $J^{PC}=1^{--}$ systems are investigated by a quark hadron hybrid model, where the 14 relevant two-meson channels are coupled, while the quark degrees of freedom appear in the short range region. In each of the $q{\bar q} s{\bar s}$ and $q{\bar q} c{\bar c}$ systems, one or more poles have been found. For the $q{\bar q} c{\bar c}$, a pole with a very narrow width appears very close to the $\omega \chi_{c1}$ threshold, which is also close to the ${\bar D} D_1$ and ${\bar D} D_1'$ thresholds. There are two poles in the $q{\bar q} s{\bar s}$, both of which have a rather larger width. We argue that they can be seeds of the observed exotic mesons like the $Y(4260)$.
DOI: https://doi.org/10.22323/1.336.0131
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.