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Belle2 Pub PH 2022 002 by yansheng.li1998 is a document available to read on EtoBox.

What is Belle2 Pub PH 2022 002 about?

This document presents the first measurement of the ratio of branching fractions of inclusive semileptonic B-meson decays, R(Xe/µ), as a precision test of lepton universality using data from the Belle II detector. The result, R(Xe/µ) = 1.007 ± 0.009 (stat) ± 0.019 (syst), aligns with the standard model expectation and is the most precise test of its kind to date. The analysis utilizes a dataset collected from electron-positron collisions, focusing on the decay processes involving the transition of b quarks

Author
yansheng.li1998
Language
EN