000004537 001__ 4537
000004537 005__ 20241008094554.0
000004537 037__ $$aBELLE2-TALK-CONF-2024-123
000004537 041__ $$aeng
000004537 088__ $$aBELLE2-TALK-DRAFT-2024-130
000004537 100__ $$aIlias Tsaklidis
000004537 245__ $$aCombining R(D(*)) measurements at Belle II
000004537 260__ $$a2024 Workshop on Challenges in Semileptonic B Decays$$c2024-09-23
000004537 300__ $$amult. p
000004537 520__ $$aThe R(D(*)) ratio is an excellent test of Lepton Flavor Universality, that promises to elucidate the nature of potential Beyond the Standard Model physical processes. In this talk, we present the latest R(D(*)) measurements from the Belle II experiment. Additionally, we explore a likelihood based combination of different analyses relying on orthogonal selections, that goes beyond the combination methodology of HFLAV. We discuss a list of joint systematic uncertainties, that should be decomposed in eigenvariations, relevant for such combinations. We demonstrate a combination using different MC mock analyses implementing the procedure. We also highlight a python based tool that can be used for eigendecompositions of non-trivial systematic uncertainties.
000004537 8560_ $$fdjaffe@bnl.gov
000004537 8564_ $$uhttps://docs.belle2.org/record/4537/files/BELLE2-TALK-CONF-2024-123.pdf