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36.
| Measurement of the tracking efficiency and fake rate with e+e- -> tau+tau- events
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-014]
24 July 2020
The tracking efficiency and fake rate have been measured using e+e− → τ+τ− events, where one tau lepton decays leptonically (τ → l±ν ν ̄ , l = e, μ) while the other decays hadronically into three charged pions (τ → 3π±ντ + nπ0). [...]
Fulltext:  PDF; |
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37.
| Search for Dark Higgsstrahlung in $e^+e^- \rightarrow \mumu$ and missing energy final states with the Belle II experiment.
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-013]
23 July 2020
This note contains the approved plots associated with the Dark Higgstrahlung analysis work presented in BELLE2-NOTE-PH-2020-048..
Fulltext: PDF; |
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38.
| Search for an invisible Z' in e+ e- -> mu+ mu- + missing energy final states in early phase 3 data
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-012]
23 July 2020
This note presents plots associated with the search for an invisible $Z^{\prime}$ in $e^+ e^- \rightarrow \mu^+ \mu^-$ + missing energy final states targeting early phase 3 data. [...]
Fulltext: PDF; |
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39.
| Prompt measurements of time-dependent CP-violation and mixing
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-011]
23 July 2020
This document contains public results relative to mixing and time dependent CP violation using $34.6\;{\rm fb}^{-1}$ of data collected in 2019 and 2020..
Fulltext: PDF (additional files); |
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40.
| Rediscovery of $D^0\to\K^0_S\pi^+\pi^-$ decays in early Belle II data
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-010]
23 July 2020
This note presents plots for rediscovery of the $D^{*+}\to D^0\pi^+$, $D^0\to\K^0_S\pi^+\pi^-$ decays, using the data collected by Belle II during 2019, which correspond to 9.6\fb^{-1} of integrated luminosity [...]
Fulltext: PDF; |
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41.
| Trigger efficiencies for single photon events
/ The Belle II collaboration
[BELLE2-NOTE-PL-2020-009]
22 July 2020
The search for invisible decays of the dark photon A′ is enabled by dedicated single photon triggers. [...]
BELLE-NOTE-PL-2020-009: PDF; |
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42.
| $D^0$ Lifetime Plots with 2019 Data
/ The Belle II Collaboration ; Angelo Di Canto ; Giulia Casarosa
[BELLE2-NOTE-PL-2020-008]
details of the analysis in B2NOTE-PH-2020-033
24 July 2020
Preliminary plots of the D0 lifetime for the D0 → K−π+, D0 → K−π+π0 and D0 → K−π+π+π− decays reconstructed in the data collected by Belle II during 2019, corresponding to 9.6 fb−1 of integrated luminosity. [...]
Fulltext: PDF; |
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43.
| Approved plots of B -> X_s l+ l- study with MC simulation
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-007]
20 July 2020
This note contains approved plots of $B \to X_s \ellell$ process with MC simulation. [...]
Fulltext: PDF; |
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44.
| Approved B counting analysis results with ICHEP2020 dataset
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-006]
17 July 2020
This note reports the number of BB pairs as measured in data collected in 2019 and the first part of 2020, corresponding to an integrated luminosity of 8.8 fb-1 and 25.8 fb-1, respectively. [...]
Fulltext: PDF; |
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45.
| Reconstruction of B0 -> J/ψKS0 and B+ -> J/ψK+
/ Y. Yusa
[BELLE2-NOTE-PL-2020-004]
21 April 2020
In this public note, we describe the reconstruction of the CP eigenstate of B0-> J/\psi K0S and its control sample of B+ -> J/\psi K+ using the data set taken from the 2019 runs recorded by the Belle II which corresponds to an integrated luminosity of 8.7 /fb..
Fulltext: PDF; |
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