A search for WbJ in decays of Y(5S): an analysis design study

[摘要] The recent discovery of the states Zb and Zb' implies the possible existence of a new family of hadronic resonances including molecular states dubbed WbJ. We search for WbJ in the decay using 121.4 fb-1 of data collected at the Y(5S) resonance with the Belle detector at the KEKB asymmetric-energy electron-positron collider. Using Monte Carlo simulation, we study Belle's sensitivity to the decay Y(5S) → γWbJ and report the current status of our analysis.

[发布机构] the University of Pittsburgh