170318 Search for D0 decays to invisible final states with Charm flavor tagging method at Belle

Title:
Search for D⁰ decays to invisible final states with Charm tagging method at Belle

Speaker:
Dr. Lai, Yun-Tsung (National Taiwan University)

Time: notice: regular time adjusted
03/18 (Sat.) 18:00 PDT, 19:00 MDT, 20:00 CDT, 21:00 EDT,
03/19 (Sun.) 09:00 Taiwan

Link:

Abstract:
The Belle experiment is one of the two B factory experiments in the world, and it has collected data sample of ~710 fb^-1 at the Υ(4S) resonances (total amount of data sample is ~1 ab^-1) with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider. The research focus of Belle is the CP violation involved in the B meson decay, rare decay of B meson, etc. Now the members are working for the upgrade of Belle: the Belle II experiment with the SuperKEKB collider. The first run is scheduled at the end of 2017. The SuperKEKB is expected to have a 40 times larger instantaneous luminosity than KEKB. With much larger amount of data, our target is to probe new physics in the rare B decay. In this talk, besides the introduction the KEKB collider and the Belle detectors, I will also talk about the search for D⁰ decays to invisible final states with Charm flavor tagging method at Belle. In an e⁺e^- flavor factory experiment, two heavy-flavor mesons (such as B or D) would be produced in flavor-conjugate states. By fully reconstructing one of the B or D meson, the recoil information can be utilized to search for decays with invisible final state particles. The design of the tagging method and details of the D⁰ → invisible measurement will be reported.