Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-10-20
Physics
High Energy Physics
High Energy Physics - Experiment
ICHEP08
Scientific paper
We report the observation of two resonance-like structures in the $\pi^+ \chi_{c1}$ invariant mass distribution near 4.1 GeV in exclusive $B\to K\pi^+\chi_{c1}$ decays. A detailed Dalitz-plot analysis demonstrates that these structures cannot be produced by reflections from any known and possibly unknown resonances in the $K\pi$ channel. If these two peaks are produced by resonances in the $\pi^+\chi_{c1}$ channel, their minimal quark structure would have to be a $c\bar{c}u\bar{d}$ tetraquark arrangement, similar to that proposed for the $Z^+(4430)$ structure reported by Belle last year in the $\pi^+\psi^{'}$ mass distribution produced in $B\to K\pi^+\psi^{'}$ decays. In addition, we report some new measurements on the properties of the X(3872) meson and the $1^{--}$ $Y$ states that are produced with initial state radiation. %and also other latest XYZ results. The analyses are based on a large data sample recorded at the $\Upsilon(4S)$ resonances and nearby continuum with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.
Choi Sang-Kyung
for the Belle Collaboration
No associations
LandOfFree
Observation of candidate exotic mesons containing heavy quarks with Belle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of candidate exotic mesons containing heavy quarks with Belle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of candidate exotic mesons containing heavy quarks with Belle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-265804