T. Shinkawa
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View article: Search for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mi>L</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:mi>ν</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:math> Decay at the J-PARC KOTO Experiment
Search for the Decay at the J-PARC KOTO Experiment Open
We performed a search for the KL→π0νν¯ decay using the data taken in 2021 at the J-PARC KOTO experiment. With newly installed counters and new analysis method, the expected background was suppressed to 0.252±0.055stat −0.067syst+0.052. Wit…
View article: Search for the $K_{L} \to π^{0} ν\barν$ Decay at the J-PARC KOTO Experiment
Search for the $K_{L} \to π^{0} ν\barν$ Decay at the J-PARC KOTO Experiment Open
We performed a search for the $K_L \to π^{0} ν\barν$ decay using the data taken in 2021 at the J-PARC KOTO experiment. With newly installed counters and new analysis method, the expected background was suppressed to $0.252\pm0.055_{\mathrm…
View article: 1D1-4 Toward Full Automation of 3D Posture Measurement and OWAS Method Analysis
1D1-4 Toward Full Automation of 3D Posture Measurement and OWAS Method Analysis Open
View article: Search for the Pair Production of Dark Particles <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi></mml:math> with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>K</mml:mi><mml:mi>L</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi>X</mml:mi><mml:mi>X</mml:mi></mml:math>, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>γ</mml:mi><mml:mi>γ</mml:mi></mml:math>
Search for the Pair Production of Dark Particles with , Open
We present the first search for the pair production of dark particles X via K_{L}^{0}→XX with X decaying into two photons using the data collected by the KOTO experiment. No signal was observed in the mass range of 40-110 MeV/c^{2} and 210…
View article: Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter
Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter Open
View article: CsI calorimeter for the J-PARC KOTO experiment
CsI calorimeter for the J-PARC KOTO experiment Open
View article: Evaluation of Automated Particle Picking for Cryo-EM Using High Precision TEM Simulation by Utilizing a Multi-slice Method
Evaluation of Automated Particle Picking for Cryo-EM Using High Precision TEM Simulation by Utilizing a Multi-slice Method Open
View article: Assembly of protein complexes restricts diffusion of Wnt3a proteins
Assembly of protein complexes restricts diffusion of Wnt3a proteins Open
View article: A new search for the KL→π0νν¯ and KL→π0X0 decays
A new search for the KL→π0νν¯ and KL→π0X0 decays Open
We searched for the $CP$-violating rare decay of neutral kaon, $K_{L} \\to\n\\pi^0 \\nu \\overline{\\nu}$, in data from the first 100 hours of physics running\nin 2013 of the J-PARC KOTO experiment. One candidate event was observed while\n…
View article: Long-lived neutral-kaon flux measurement for the KOTO experiment
Long-lived neutral-kaon flux measurement for the KOTO experiment Open
The KOTO ($K^0$ at Tokai) experiment aims to observe the CP-violating rare decay $K_L \\rightarrow \\pi ^0 \\nu \\bar {\\nu }$ by using a long-lived neutral-kaon beam produced by the 30 GeV proton beam at the Japan Proton Accelerator Resea…
View article: Photon-veto counters at the outer edge of the endcap calorimeter for the KOTO experiment
Photon-veto counters at the outer edge of the endcap calorimeter for the KOTO experiment Open
View article: Search for heavy neutrinos in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msub><mml:mi>ν</mml:mi><mml:mi>H</mml:mi></mml:msub></mml:math>decays
Search for heavy neutrinos indecays Open
Evidence of a heavy neutrino, $\\nu_H$, in the $K^+\\to\\mu^+\\nu_H$ decays was\nsought using the E949 experimental data with an exposure of $1.70\\times\n10^{12}$ stopped kaons. With the major background from the radiative\n$K^+\\to\\mu^+…