The decay Bs0 → η' Xss̄ is searched for at Belle, using Belle’s 121.4/fb integrated luminosity data sample, taken at Υ(5S) resonance. A semi-inclusive reconstruction method whereby the Xss̄ is reconstructed as a system of two kaons and up to four pions, with at most one neutral pion, is used. Using the η' sub-decay mode η'→ η (→ γγ ) π+ π− and examining the Xss̄ mass range M( Xss̄ ) ≤ 2.4 GeV/c2 , an upper limit at90% confidence level is set. This mode had been previously unstudied and this analysis partially hopes to motivate future theoretical studies as well as future analyses at the Belle II experiment.
|School:||University of Hawai'i at Manoa|
|School Location:||United States -- Hawaii|
|Source:||DAI-B 82/8(E), Dissertation Abstracts International|
|Subjects:||Particle physics, Physics|
|Keywords:||Belle, Belle II, Bs0, Flavor physics, Intensity, KEKB|
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