arxiv: 1011.0352 · v1 · ★pith:XIODYOIRnew · submitted 2010-11-01 · ⚛️ physics.ins-det · hep-ex
Belle II Technical Design Report
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The Belle detector at the KEKB electron-positron collider has collected almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an upgrade of KEKB is under construction, to increase the luminosity by two orders of magnitude during a three-year shutdown, with an ultimate goal of 8E35 /cm^2 /s luminosity. To exploit the increased luminosity, an upgrade of the Belle detector has been proposed. A new international collaboration Belle-II, is being formed. The Technical Design Report presents physics motivation, basic methods of the accelerator upgrade, as well as key improvements of the detector.
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Cited by 10 Pith papers
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$b\to s\ell^+\ell^- (\ell = e, \mu, \tau)$ and $b\to s\nu\bar\nu$ at Belle and Belle II
hep-ex 2026-04 unverdicted novelty 7.0
Belle and Belle II present results on b to s lepton-pair and b to s neutrino-pair decays, including reinterpretation of B+ to K+ nu nu-bar and the first inclusive B to X_s nu nu-bar measurement.
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The $B^+ \to K^+ \nu \bar \nu$ decay as a search for the QCD axion
hep-ph 2025-10 unverdicted novelty 7.0
Model-independent reinterpretation of Belle II B+ → K+ νν̄ data using public kinematic mapping yields a factor-of-nine improvement on the limit for B+ → K+ a and constrains the axion's b-s flavor-changing coupling.
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Using Graph Neural Networks for hadronic clustering and to reduce beam background in the Belle~II electromagnetic calorimeter
hep-ex 2026-04 unverdicted novelty 6.0
Graph neural networks can identify and remove unwanted beam background depositions in the Belle II calorimeter to improve hadronic clustering and reduce fake photon clusters.
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hep-ph 2025-11 unverdicted novelty 6.0
This work provides a comprehensive analysis of light new physics contributions to tau lepton dipole moments, detailing interpretations of asymmetry measurements for spin-0 and spin-1 bosons, their decoupling to the EF...
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Development of a sub-100 ps Time-of-Flight detector with SiPM-readout scintillator for measurement of cosmic muon velocity
physics.ins-det 2026-05 conditional novelty 5.0
Multi-face 4S SiPM readout on scintillators achieves 68 ps TOF resolution and measures cosmic muon velocity.
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Measurements of electroweak penguins and $B$ decays to final states with missing energy at Belle and Belle II
hep-ex 2026-04 unverdicted novelty 5.0
Measurements of b to s lepton-pair, tau-pair, and neutrino-pair decays presented from Belle and Belle II datasets.
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Searching for apparent baryon number violation in $\Lambda_c^+$ decays at the Super Tau-Charm Facility
hep-ph 2026-04 unverdicted novelty 5.0
STCF with 1 ab^{-1} can probe several-TeV new-physics scales in sterile-neutrino EFT and constrain an RPV SUSY parameter to ~0.1 TeV^{-2} for apparent BNV in unexplored Lambda_c+ channels.
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dN/dx Reconstruction with Deep Learning for High-Granularity TPCs
hep-ex 2025-10 unverdicted novelty 5.0
GraphPT, a U-Net-style graph neural network with attention, improves K/π separation power by 10-20% over the truncated mean method for dN/dx-based PID in the 5-20 GeV/c range.
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Improved measurement of Born cross sections for $\chi_{bJ}\,\omega$ and $\chi_{bJ}\,(\pi^+\pi^-\pi^0)_{\rm non-\omega}$ ($J$ = 0, 1, 2) at Belle and Belle II
hep-ex 2025-10 accept novelty 4.0
Improved cross-section measurements reveal Υ(10753) decays to χ_bJ ω but not non-ω three-pion states, while Υ(10860) shows the reverse pattern, plus updated mass 10756.1 ± 3.4 ± 2.7 MeV and width 32.2 ± 11.3 ± 14.9 Me...
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Upgrade of the Belle II Vertex Detector with Depleted Monolithic CMOS Active Pixel Sensors
physics.ins-det 2026-05 unverdicted novelty 3.0
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