26.
| Rediscovery of $D^{0} \,\to\, K_{S}\pi^{0}$ with Belle II Detector
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-022]
27 July 2020
This note reports the plots for the rediscovery of decay mode $D^{*+} \,\to\, D^{0}\pi^{+}_{s}$, $D^{0} \,\to\, K_{S}\pi^{0}$ with Belle II data corresponding to an integrated luminosity of 34.6 fb$^{-1}$ [...]
Fulltext: PDF; |
27.
| Rediscovery of "wrong-sign" D0 decays to hadronic final states with early Belle II data
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-021]
27 July 2020
In the standard model, mixing and CP violation in the charm sector are expected to be very small and thus they constitute a sensitive probe for potential new physics contributions. [...]
Fulltext: PDF; |
28.
| Rediscovery of the D0 ->KS0 KS0 decay with early Belle II data
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-020]
27 July 2020
The decay D0 ->KS0 KS0 is among the most interesting modes for the understanding of CP violation in charm decays [...]
Fulltext: PDF; |
29.
| 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); |
30.
| 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; |
31.
| 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; |
32.
| 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; |
33.
| 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; |
34.
| 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; |
35.
| 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; |