1147.
| $\tau$ lepton mass measurement at Belle II
/ The Belle II Collaboration
[BELLE2-CONF-PH-2020-010]
04 August 2020
The reconstruction of tau-pair production, $\epem \to \tau^{+}\tau^{-}$, from the subsequent 3-prong ($\tau^{+} \rightarrow \pi^{+} \pi^{-} \pi^{+} \bar{\nu}_{\tau}$) and 1-prong ($\tau^{-} \to \ell^{-} \bar{\nu}_{\ell} \nu_{\tau}$, $\tau^{-} \to h^{-} \nu_{\tau}$ or $\tau^{-} \to \pi^{-} \pi^0 \nu_{\tau}$) decays, is presented using 8.76~\invfb of $\epem $ collision data of {\belletwo} at the center-of-mass energy $\sqrt{s} = m_{\Upsilon(4S)}$ [...]
Fulltext: PDF; |
1148.
| Belle II RAW data management: The Online-Offline data transfer system
/ Matthew Barrett ; Takanori Hara ; Michel Hernández Villanueva ; Kunxian Huang ; et al
[BELLE2-TALK-DRAFT-2020-050]
[BELLE2-TALK-CONF-2020-037]
15 + 5 minutes.
30 July 2020
/ ICHEP2020
Data collection at the Belle II experiment started in the spring of 2019. [...]
Fulltext: PDF; |
1149.
| Dark Sector Searches at Belle II
/ Michel Bertemes
[BELLE2-CONF-PROC-2020-012]
31 July 2020
The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. [...]
Fulltext: PDF; |
1150.
| Muon and electron identification efficiencies and hadron-lepton mis-identification probabilities
/ The Belle II collaboration
[BELLE2-NOTE-PL-2020-027]
31 July 2020
In this note we show the performance of Belle II electron and muon identification, based on a combination of subdetector likelihoods. [...]
Fulltext: PDF; |
1151.
| Rediscovery of $B \to \phi K^{(*)}$ decays and measurement of the longitudinal polarization fraction $f_L$ in $B \to \phi K^{*}$ decays using the Summer 2020 Belle II dataset
/ The Belle II Collaboration
[BELLE2-CONF-PH-2020-006]
31 July 2020
We utilize a sample of 34.6\invfb, collected by the Belle II experiment at the SuperKEKB asymmetric energy \epem\ collider, to search for the $\Bp \to \phi \Kp$, $\Bp \to \phi \Kstarp$, $\Bz \to \phi \KS$, and $\Bz \to \phi \Kstarz$ decays [...]
Fulltext: PDF (additional files); |
1152.
| Diversity + Inclusion at Belle II
/ Shanette De La Motte ; Hannah Wakeling ; Matt Barrett ; Kay Kinoshita
[BELLE2-POSTER-CONF-2020-001]
3 minutes Posters converted to 1+3 slides for virtual conference
31 July 2020
/ ICHEP2020
The Belle II collaboration comprises over 1000 international high energy physicists, who investigate the properties of b-quarks and other particles at the luminosity frontier. [...]
Fulltext: PDF; |
1153.
| First Physics Results from Belle II@SuperKEKB
/ Tom Browder (University of Hawaii)
[BELLE2-TALK-CONF-2020-036]
60 minutes (some material skipped because of lack of time)
28 July 2020
/ SLAC FPD Experimental Seminar
I will present a few highlights from the latest Belle II Physics Run, which took place in spring and summer 2020 during the global pandemic and just concluded a month ago. [...]
Fulltext: PPTX; |
1154.
| Inclusive B → X_u e ν_e endpoint analysis: Approved plots for ICHEP2020
/ The Belle II Collaboration
[BELLE2-NOTE-PL-2020-026]
28 July 2020
This note contains the approved plots associated with the note BELLE2-NOTE-PH-2019-013. [...]
Fulltext: PDF; |
1155.
| Diversity and Inclusion Activities in the Belle II Collaboration
/ Hannah Wakeling ; Shanette De La Motte ; Matthew Barrett ; Kay Kinoshita
[BELLE2-TALK-CONF-2020-035]
20+5 minutes
30 July 2020
/ ICHEP2020
Belle II is an international collaboration that has over 1000 members from institutions in 26 countries. [...]
Fulltext: PDF; |
1156.
| First flavor tagging calibration using 2019 Belle II data
/ Fernando Abudinén ; Takeo Higuchi ; Colm Murphy
[BELLE2-CONF-PH-2020-004]
28 July 2020
We report on the first calibration of the standard Belle II B-flavor tagger using the full data set collected at the Upsilon(4S) resonance in 2019 with the Belle II detector at the SuperKEKB collider, corresponding to 8.7/fb of integrated luminosity. [...]
Fulltext: PDF; |