Jun 13 – 17, 2011
Europe/Berlin timezone
Proceedings are now available online at <a href="http://www.slac.stanford.edu/econf/C110613/">eConf</a>

The Y(3940), Z(3930), and the X(4160) as dynamically generated resonances from the vector-vector interaction

Jun 14, 2011, 6:20 PM
1h 10m
Millerzimmer (Künstlerhaus)



poster Poster Session Poster Session


Mrs Raquel Molina (IFIC)


We study the vector-vector interaction within the framework of the hidden gauge formalism for the channels with quantum numbers charm C=0 and strangeness S=0 in the energy region around 4000 MeV. By looking for poles in the complex plane we find three resonances that could be identified by the mass, width, and quantum numbers with the Y(3940), Z(3940), and X(4160), these poles appear with isospin I=0 and JPC=0++, 2++ and 2++, respectively. Whereas the Y(3940) and Z(3940) are coupled more strongly to D*D̅ *, the X(4160) is basically a Ds*D̅ s* molecular state. Another two extra resonances appear in our approach with I=0, 1 and JPC=1+-, 2++ which are not found in the PDG with masses M=3945, 3912 MeV and widths Γ=0, 120 MeV, respectively. In addition, the radiative decays of these hadrons will be mentioned.

Primary author

Mrs Raquel Molina (IFIC)


Prof. Eulogio Oset (IFIC)

Presentation materials