Belle II Document Server 35 records found  previous11 - 20nextend  jump to record: Search took 0.03 seconds. 
11. Upgrade of the vertex detector of the Belle II experiment / J.Baudot ; VXD Upgrade R&D Working Group of the Belle II collaboration [BELLE2-TALK-DRAFT-2020-052] [BELLE2-TALK-CONF-2020-070] 25' + 5'
10 September 2020
/ 10/06/2020
This talk will review the context of the proposed VXD upgrade in Belle II, providing some details of the existing technological proposals and discussing performance expectations from simulations..
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12. $\tau$ 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 $\sqrt{s} = m_{\Upsilon(4S)}$ [...]
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13. 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. [...]
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14. 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 [...]
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15. 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. [...]
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16. Λc rediscovery in early Phase 3 Belle II data / The Belle II Collaboration [BELLE2-NOTE-PL-2020-025]
24 July 2020

This note describes $\Lambda_{c}^{+} \rightarrow p K^- \pi^+$ reconstruction in the data sample collected by Belle II during 2019 corresponding to 8.8 fb $^{-1}$ of integrated luminosity [...]
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17. Kaon and Pion Identification Performances in Phase III data / The Belle II Collaboration [BELLE2-NOTE-PL-2020-024]
28 July 2020

We study the performances of the charged kaon and pion identification based on 37 fb−1PhaseIII data from the physics runs collected till early 2020 and compare with Phase III Monte Carlo(MC) events. [...]
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18. Approved plots for B -> tau nu study with 34.6 / fb of Phase III data / The Belle II Collaboration [BELLE2-NOTE-PL-2020-023]
28 July 2020

This note contains approved plots of B -> tau nu analysis with ICHEP 2020 dataset, corresponding to an integrated luminosity of 34.6 / fb. [...]
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19. 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$^{-1}$ [...]
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20. 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. [...]
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