Belle II Document Server 51 records found  1 - 10nextend  jump to record: Search took 0.05 seconds. 
1. Measurement of instrumental asymmetries of kaons and pions / The Belle II Collaboration [BELLE2-NOTE-PL-2022-004]
23 November 2022

We measure instrumental asymmetries of kaons and pions using $D^0 \to K^-\pi^+$ and $D^- \to K^0_S\pi^-$ decays. [...]
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2. $R(D^{*})$ measurement using the hadronic tag algorithm at the Belle II experiment / Kazuki Kojima ; Toru Iijima ; Qi-Dong Zhou ; Kodai Matsuoka ; et al [BELLE2-NOTE-PH-2022-032] [BELLE2-TALK-DRAFT-2022-137] [BELLE2-TALK-CONF-2022-111] 20 minutes (15 minutes presentation + 5 minutes Q&A) ; https://www.jps.or.jp/english/meetings-and-awards/autumn/autumn-meeting-index.html ; https://kds.kek.jp/event/43097/
06 September 2022
/ The 2022 Autumn Meeting of the Physical Society of Japan
In the semileptonic decay of $B$ mesons, the global average of $R(D^{*})$ measurement deviates from the Standard Model by $3.3\sigma$. [...]
Belle II Note: Download fulltextPDF; Slide in Japanese: Download fulltextPDF;
3. Simulation of an all-layer monolithic pixel vertex detector for the Belle II upgrade / Ludovico Massaccesi ; Suryanarayan Mondal ; Belle II VTX collaboration [BELLE2-POSTER-CONF-2022-002] Poster. https://agenda.infn.it/event/22092/contributions/166670/
22 May 2022
/ PM2021 Pisa Meeting on Advanced Detectors
The Belle II experiment at the SuperKEKB e+e- collider has started developing an upgrade program on the time frame of 2026-2027 to improve the detector performance and robustness against beam-induced backgrounds. [...]
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4. CMOS MAPS Upgrade for the Belle II Vertex Detector / Christian Wessel ; Belle II VTX collaboration [BELLE2-TALK-CONF-2022-044] 15 + 5 minutes https://agenda.infn.it/event/22092/ https://agenda.infn.it/event/22092/contributions/167366/
24 May 2022
/ Pisa Meeting on Adtanced Detectors
The success of the Belle II experiment in Japan relies on the very high instantaneous luminosity, close to 6x10^35 cm^-2 s^-1, expected from the SuperKEKB collider. [...]
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5. The Silicon Vertex Detector of the Belle II Experiment / Christian Irmler ; on behalf of the Belle II SVD collaboration [BELLE2-POSTER-CONF-2022-001]
16 May 2022
/ 15th Pisa Meeting on Advanced Detectors
The Belle II experiment is taking data at the asymmetric Super-KEKB collider, which operates at the Y(4S) resonance [...]
Fulltext: summary_irmler_belle2_svd - Download fulltextPDF; poster_irmler_belle2_svd_V2 - Download fulltextPDF; poster_irmler_belle2_svd_V2.1 - Download fulltextPDF; poster_irmler_belle2_svd_V4 - Download fulltextPDF; poster_irmler_belle2_svd_V3 - Download fulltextPDF;
6. Study of photon energy bias using π0 → γγ decays from D∗+ → D0(→ K−π+π0)π+ / The Belle II Collaboration [BELLE2-NOTE-PL-2022-002]
30 March 2022

We reconstruct clean samples of π0 → γγ decays from the D∗+ → D0(→ K−π+π0)π+ decay chain in both data and simulation to study the bias in the reconstructed π0 mass. [...]
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7. Muon and electron identification efficiencies and hadron-lepton mis-identification rates at Belle II for Moriond 2022 / Charged PID Group ; The Belle II Collaboration [BELLE2-CONF-PH-2022-003]
09 March 2022

We present a collection of selected results on the performance of Belle II in the identification of electrons and muons. [...]
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8. Belle II experiment sensitivity to the LFV decay tau -> l + alpha / The Belle II Collaboration [BELLE2-NOTE-PL-2021-011]
22 September 2021

We study the charged lepton flavor violating decay tau -> l alpha, where alpha is a non-standard invisible boson that leaves the Belle II detector undetected and l is either an electron or a muon [...]
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9. Belle II experiment sensitivity to the LFV decays tau -> l + alpha / The Belle II Collaboration [BELLE2-NOTE-PL-2021-010]
22 September 2021

We study the charged lepton flavor violating decay tau -> l alpha, where alpha is a non-standard invisible boson that leaves the Belle II detector undetected and l is either an electron or a muon [...]
10. Search for lepton flavor universality violation in leptonic tau decays with 1x1 and 3x1 topologies. / The Belle II Collaboration [BELLE2-NOTE-PL-2021-009]
07 September 2021

This public plot document presents MC sensitivity studies for the search for LFU violation in $\tau \rightarrow \ell \bar{\nu} \nu$ decays using 1x1 and 3x1 prong $\tau$-pair events..
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