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6–10 May 2019
Canada/Pacific timezone

Semileptonic and leptonic B decay results from early Belle II data

8 May 2019, 14:25
15m
ELL 162

ELL 162

Contributed Oral Heavy Quark Decays and CKM Metrology Parallel session 2

Speaker

Dr Markus Prim (Karlsruhe Institute of Technology)

Description

The Belle II experiment at the SuperKEKB energy-asymmetric e+e collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is 8×1035 cm2s1 and the Belle II experiment aims to record 50 ab1 of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning run, achieved a peak luminosity of 5.5×1033 cm2s1, and Belle II has recorded a data sample of about 0.5 fb1. Main operation of SuperKEKB has started in March 2019. In this presentation we show first results from studying missing energy signatures, such as leptonic and semileptonic B meson decays based on early Belle II data. We report first studies on re-measuring important standard candle processes, such as the abundant inclusive BXν and BDν decays, and evaluate the performance of machine learning based tagging algorithms. Furthermore, we will also present an overview of the semileptonic B decays that will be measured in the upcoming years at Belle II and discuss prospects for important B-anomalies like R(D) and R(D*), as well as other tests of lepton flavor universality.
Email peruzzi@lnf.infn.it

Primary author

Prof. Ida Marena Peruzzi (INFN-LNF)

Presentation materials