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Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

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T: Fachverband Teilchenphysik

T 18: Flavor physics: algorithms

T 18.5: Talk

Monday, March 30, 2020, 17:30–17:45, L-3.001

Extending the Full Event Interpretation to the Y(5S) system — •Moritz Bauer and Pablo Goldenzweig for the Belle II collaboration — KIT Karlsruhe

The Belle experiment has, in addition to the data collected at the Υ(4S) resonance, also collected 121 fb−1 of data at the Υ(5S) resonance. The decay products of this resonance include Bs mesons which present interesting channels to test the standard model. Until now, it has not been possible to apply Belle II’s new B meson tagging algorithm, the Full Event Interpretation (FEI), to the Υ(5S) dataset. This multivariate exclusive tagging algorithm uses O(10k) decay channels to recombine final-state particles to B mesons which increases the tagging-efficiency significantly compared to cut-based methods.

This talk presents the development and validation of the FEI at the Υ(5S) resonance.

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