DPG Phi
Verhandlungen
Verhandlungen
DPG

SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 104: Flavor VIII

T 104.3: Vortrag

Donnerstag, 23. März 2023, 16:20–16:35, HSZ/0304

Studies of BD** ℓ ν at Belle IIGerald Eigen1,2, Ariane Frey2, and •Noreen Rauls21Institutt for fysikk og teknologi, Bergen, Norway — 2II. Physikalisches Institut, Georg-August-Universität Göttingen, Deutschland

To probe the Standard Model, various different measurements can be conducted. One test that can be performed is the determination of the ratio R(D(*))= B(BD(*) τ ν)/B(BD(*)ν) , where one limiting factor is the background arising from semileptonic BD** ℓ ν decays. Therefore, this analysis attempts to acquire a better understanding of the decay BD** ℓ ν as well as measure its branching ratio.
This measurement is based on data collected at the Belle II experiment, which is situated at the asymmetric e+ e collider SuperKEKB in Japan, which operates at the Υ(4S) resonance. Thus, the B mesons are always produced in pairs. One of these B mesons is reconstructed employing the hadronic Full Event Interpretation (FEI), which reconstructs exclusive hadronic B decays. To reconstruct the other B meson, a charged, light lepton is combined with a D**, where multiple hadronic decay modes are considered.
This talk will outline the selection procedure as well as explain a binned maximum likelihood fit to extract the branching ratio. Besides, a brief outlook on future plans will be given.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2023 > SMuK