Search Results - "H. Kichimi"
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The BELLE TOF system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2000)“…The BELLE TOF system provides π/K separation for particle momentum below 1.2 GeV/c . A novel Time Stretcher TDC scheme is used to measure flight times with a…”
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Characteristics of beam collision timing and position at the KEK B-factory
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-11-2010)“…Using the Belle detector we study the characteristics of beam collisions at the KEKB 3.5GeVe+ and 8GeVe− asymmetric energy collider. We investigate the…”
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3
Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays
Published in The journal of high energy physics (01-03-2021)“…A bstract We present measurements of the branching fractions for the decays B → Kμ + μ − and B → Ke + e − , and their ratio ( R K ), using a data sample of 711…”
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Measurement of the Electromagnetic Coupling at Large Momentum Transfer
Published in Physical review letters (20-01-1997)Get full text
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Search for lepton-flavor-violating tau-lepton decays to ℓγ at Belle
Published in The journal of high energy physics (01-10-2021)“…A bstract Charged lepton flavor violation is forbidden in the Standard Model but possible in several new physics scenarios. In many of these models, the…”
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A detailed Monte Carlo simulation for the Belle TOF system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-09-2002)“…We have developed a detailed Monte Carlo simulation program for the Belle time-of-flight (TOF) system. Based on GEANT simulation, it takes account of all…”
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7
First Measurements of Absolute Branching Fractions of the Ξc0 Baryon at Belle
Published in Physical review letters (01-03-2019)“…We present the first measurements of absolute branching fractions of Ξc0 decays into Ξ−π+, ΛK−π+, and pK−K−π+ final states. The measurements are made using a…”
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Observation of a new structure near 10.75 GeV in the energy dependence of the e+e−→ ϒ (nS)π+π− (n = 1, 2, 3) cross sections
Published in The journal of high energy physics (01-10-2019)“…A bstract We report a new measurement of the e + e − → ϒ( nS ) π + π − ( n = 1 , 2 , 3) cross sections at energies from 10 . 52 to 11 . 02 GeV using data…”
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9
Observation of a Resonancelike Structure in the π + − ψ ′ Mass Distribution in Exclusive B → K π + − ψ ′ Decays
Published in Physical review letters (01-04-2008)Get full text
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An improved search for the electric dipole moment of the τ lepton
Published in The journal of high energy physics (20-04-2022)“…A bstract We report a measurement of the electric dipole moment of the τ lepton ( dτ ) using an 833 fb − 1 data sample collected near the Υ(4 S ) resonance,…”
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First Observation of the P -Wave Spin-Singlet Bottomonium States h b ( 1 P ) and h b ( 2 P )
Published in Physical review letters (18-01-2012)Get full text
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Observation of a Near-Threshold Enhancement in the e + e − → Λ c + Λ c − Cross Section Using Initial-State Radiation
Published in Physical review letters (24-10-2008)Get full text
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Search for the lepton flavour violating decays $B^{+} \to K^{+} \tau^\pm \ell^\mp$ ($\ell = e, \mu$) at Belle
Published in Physical review letters (28-06-2023)“…We present a search for the lepton-flavour-violating decays $B^+ \to K^+ \tau^\pm \ell^\mp$, with $\ell = (e, \mu)$, using the full data sample of $772 \times…”
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First measurement of the $$ {\Lambda}_c^{+} $$ → pη′ decay
Published in The journal of high energy physics (01-03-2022)“…A bstract We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay $$ {\Lambda}_c^{+} $$ Λ c + → pη ′ with η ′ →…”
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15
Evidence of the Purely Leptonic Decay B − → τ − ν ¯ τ
Published in Physical review letters (01-12-2006)Get full text
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New search for τ → μ γ and τ → e γ decays at Belle
Published in Physics letters. B (07-08-2008)Get full text
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Study of τ−→KSπ−ντ decay at Belle
Published in Physics letters. B (11-10-2007)“…We present a study of the decay τ−→KSπ−ντ using a 351 fb−1 data sample collected with the Belle detector. The analysis is based on 53,110 lepton-tagged signal…”
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New search for τ→μγ and τ→eγ decays at Belle
Published in Physics letters. B (07-08-2008)“…We report on a search for the lepton flavor violating τ−→μ−γ and τ−→e−γ decays based on 535 fb−1 of data accumulated at the Belle experiment. No signal is…”
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Observation of a Charmoniumlike State Produced in Association with a J / ψ in e + e − Annihilation at s ≈ 10.6 GeV
Published in Physical review letters (23-02-2007)Get full text
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Observation of Bs0→J/ψf0(980) and Evidence for Bs0→J/ψf0(1370)
Published in Physical review letters (23-03-2011)Get full text
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