Bonn 2020 – scientific programme
The DPG Spring Meeting in Bonn had to be cancelled! Read more ...
Parts | Days | Selection | Search | Updates | Downloads | Help
T: Fachverband Teilchenphysik
T 51: Flavor physics: CKM I
T 51.5: Talk
Wednesday, April 1, 2020, 17:30–17:45, H-HS XI
Untagged B0 → D*+ ℓ− νℓ studies with Belle II — Florian Bernlochner, Lu Cao, Jochen Dingfelder, and •Chaoyi Lyu — The University of Bonn, Bonn, Germany
The precise determination of the CKM matrix element |Vcb| and semileptonic form factors in B meson decays are important for carrying out precision tests of the flavour sector of the Standard Model and to search for new physics. The decay of B0 → D*+ ℓ− νℓ is particularly well suited to determine |Vcb| due to its large branching fraction, small backgrounds and the availability of lattice data to describe the form factors. In this talk I will present the current status of establishing an untagged measurement of the B0 → D*+ ℓ− νℓ branching fraction and form factors. In particular, I will show results using first Belle II data and present detailed comparisons between simulated and recorded B0 → D*+ ℓ− νℓ decays.