Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2012-02-28
Physics
High Energy Physics
High Energy Physics - Experiment
4 pages, 2 figures. Contribution to KMI Inauguration Conference "Quest for the Origin of Particles and the Universe" (KMIIN),
Scientific paper
We review recent results on charmonium-like exotic states from the Belle experiment. The two-photon process $\gamma \gamma \to \phi \jpsi$ is measured to search for Y(4140). No signal for the $Y(4140) \to \phi \jpsi$ is observed. But a narrow peak with a significance of 3.2$\sigma$ deviations including systematic uncertainty is observed at 4350.6 MeV/$c^2$ that we named X(4350). We also search for charmonium-like states, including X(3872), Y(4140), X(3915) and X(4350), in $\Upsilon(1S)$ and $\Upsilon(2S)$ radiative decays. No significant signal of any charmonium-like state is observed. The processes $\gamma \gamma \to VV$ ($V=\omega$ or $\phi$) are also measured to search for the possible exotic states in low mass region. There are clear resonant structures in all the decay modes.
No associations
LandOfFree
Search for the exotic states at 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 Search for the exotic states at Belle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for the exotic states at Belle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-605466