Abstract
We present results from a study of decays produced via exclusive decays. We determine the mass to be , a 90% confidence level upper limit on the natural width of , the product branching fraction , and a ratio of branching fractions . The difference in mass between the signals in and decays is . A search for a charged partner of the in the decays or , resulted in upper limits on the product branching fractions for these processes that are well below expectations for the case that the is the neutral member of an isospin triplet. In addition, we examine possible quantum number assignments for the based on comparisons of angular correlations between final state particles in decays with simulated data for values of and . We examine the influence of - interference in the spectrum. The analysis is based on a data sample that contains meson pairs collected at the resonance in the Belle detector at the KEKB collider.
3 More- Received 1 July 2011
DOI:https://doi.org/10.1103/PhysRevD.84.052004
© 2011 American Physical Society