Sensitivity studies on the lepton universality in the channel $\Upsilon(nS)\rightarrow \ell \ell$ via initial-state radiation

Sumitted to PubDB: 2021-07-21

Category: Conference papers and plots, Visibility: Public

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Authors Gian Luca Pinna Angioni, Umberto Tamponi
Date 2021-07-16
Belle II Number BELLE2-NOTE-PL-2021-006
Abstract In this note, we present the results of sensitivity studies on the lepton universality in the channel Ļ’(nS) ā†’ š“µš“µ via initial-state radiation (ISR). The study is performed with Phase III Monte Carlo samples and cover an integrated luminosity range up to the design value of 50 abāˆ’1. This work show that the even with the complete design dataset the statistical uncertainty is not reduced enough to have a competitive measurement.

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