M. Ritter

We report results from a search for the decay $B_{s}^{0} \to η η$ using 121.4 fb $^{- 1}$ of data collected at the $Υ (5 S)$ resonance with the Belle detector at the KEKB asymmetric-e…

hep-ex2021

Measurement of the branching fraction and $C P$ asymmetry for $B \to D ˉ^{0} π$ decays

Belle Collaboration, T. Bloomfield, M. E. Sevior +212

We measure the branching fractions and $C P$ asymmetries for the decays $B^{0} \to D ˉ^{0} π^{0}$ and $B^{+} \to D ˉ^{0} π^{+}$ , using a data sample of $772 \times 1 0^{6}$ $B\bar…

hep-ex2021

Exclusive $B \to X_{u} ℓ ν_{ℓ}$ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb $^{- 1}$ of Belle II Data

Belle II Collaboration, F. Abudinén, I. Adachi +565

We present a reconstruction in early data of the semileptonic decay $B^{+} \to π^{0} ℓ^{+} ν_{ℓ}$ , and first results of a reconstruction of the decays $B^{+} \to ρ^{0} ℓ^{+} ν_{ℓ}$ and…

hep-ex2021

Measurements of the branching fractions for $B \to K^{*} γ$ decays at Belle II

F. Abudinén, I. Adachi, R. Adak +565

This paper reports a study of $B \to K^{*} γ$ decays using $62.8 \pm 0.6$ fb $^{- 1}$ of data collected during 2019--2020 by the Belle II experiment at the SuperKEKB $e^{+} e^{-}$ asymm…

hep-ex2021

Punzi-loss: A non-differentiable metric approximation for sensitivity optimisation in the search for new particles

P. Feichtinger, H. Haigh, G. Inguglia +43

We present the novel implementation of a non-differentiable metric approximation and a corresponding loss-scheduling aimed at the search for new particles of unknown mass in high e…

hep-ex2021

$B$ -flavor tagging at Belle II

F. Abudinén, N. Akopov, A. Aloisio +118

We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom ( $B$ ) mesons at Belle II. The algorithms provide essential inputs for measureme…

Search for the decay Bs0​→ηη

Measurement of the branching fraction and CP asymmetry for B→Dˉ0π decays

Exclusive B→Xu​ℓνℓ​ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb−1 of Belle II Data

Measurements of the branching fractions for B→K∗γ decays at Belle II

Punzi-loss: A non-differentiable metric approximation for sensitivity optimisation in the search for new particles

B-flavor tagging at Belle II

Search for the decay $B_{s}^{0} \to η η$

Measurement of the branching fraction and $C P$ asymmetry for $B \to D ˉ^{0} π$ decays

Exclusive $B \to X_{u} ℓ ν_{ℓ}$ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb $^{- 1}$ of Belle II Data

Measurements of the branching fractions for $B \to K^{*} γ$ decays at Belle II

$B$ -flavor tagging at Belle II