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1120.
| Belle II experiment sensitivity to the LFV decay tau -> e + alpha
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-018]
27 July 2020
We study the charged lepton flavor violating decay tau -> e alpha, where alpha is a non-standard invisible boson that leaves the Belle II detector undetected. [...]
Fulltext:  PDF (additional files); |
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1121.
| Study of e+e−→J/ψ(→µ+µ−) via initial-state radiation at Belle II
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-017]
25 July 2020
We study e+e−→J/ψ(→µ+µ−) via initial-state radiation (ISR) using a data sample of an integrated luminosity of 37.8 fb^-1 collected with the Belle II detector at the Υ(4S) resonance and nearby. [...]
Fulltext: PDF; |
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1122.
| D_{s}^{+} reconstruction plots
/ The Belle II Collaboration ;
[BELLE2-NOTE-PL-2020-016]
25 June 2020
This document contains the Ds+ mass plots reconstructed in the decays to the following final states: phi[K+K-]pi, anti-K*[K-pi+]K+, Ks0[pi+pi-]K+ [...]
Fulltext: PDF; |
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1123.
| L1 trigger efficiencies for e+e− -> tau+tau- events
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-015]
24 July 2020
The Level 1 trigger efficiency has been studied in τ-pair events. [...]
Fulltext: PDF; |
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1124.
| 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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1125.
| 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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1126.
| 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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1127.
| Belle II Pixel Detector Commissioning and Operational Experience
/ B. Spruck ; for BelleII PXD - DEPFET collaboration
[BELLE2-CONF-PROC-2020-011]
The 28th International Workshop on Vertex Detectors PoS(Vertex2019)015 https://pos.sissa.it/373/015/pdf
26 February 2020
The Belle II experiment at the Super Flavour Factory SuperKEKB in Tsukuba, Japan, has started regular operation with its final detector setup in spring 2019. [...]
Fulltext: PDF; |
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1128.
| 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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1129.
| 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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