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NSR database version of April 26, 2024.

Search: Author = T.Ohshima

Found 13 matches.

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1993OH02      Phys.Rev. D47, 4840 (1993)

T.Ohshima, H.Sakamoto, T.Sato, J.Shirai, T.Tsukamoto, Y.Sugaya, K.Takahashi, T.Suzuki, C.Rosenfeld, S.Wilson, K.Ueno, Y.Yonezawa, H.Kawakami, S.Kato, S.Shibata, K.Ukai

No 17 keV Neutrino: Admixture < 0.073% (95% C.L.)

RADIOACTIVITY 63Ni(β-); measured β-spectra; deduced 17 keV ν admixing with ν(e) upper limit. High confidence limit, magnetic spectrometer.

doi: 10.1103/PhysRevD.47.4840
Citations: PlumX Metrics

1993OH06      Hyperfine Interactions 78, 251 (1993)

T.Ohshima, M.Tanaka, K.Katori, M.Fujiwara, H.Ogata, M.Kondo, N.Shimakura

Polarized Electron Capture by 3He2+ at 20-28 keV

ATOMIC PHYSICS 3He; measured nuclear polarization. Beam foil spectroscopy.

doi: 10.1007/BF00568147
Citations: PlumX Metrics

1992KA29      Phys.Lett. 287B, 45 (1992)

H.Kawakami, S.Kato, T.Ohshima, C.Rosenfeld, H.Sakamoto, T.Sato, S.Shibata, J.Shirai, Y.Sugaya, T.Suzuki, K.Takahashi, T.Tsukamoto, K.Ueno, K.Ukai, S.Wilson, Y.Yonezawa

High Sensitivity Search for a 17 keV Neutrino. Negative Indication with an Upper Limit of 0.095%

RADIOACTIVITY 63Ni(β-); measured β-spectrum near 17 keV ν-threshold; deduced no 17 keV ν indication, admixture upper limit.

doi: 10.1016/0370-2693(92)91874-9
Citations: PlumX Metrics

1992OH02      Phys.Lett. 274B, 163 (1992)

T.Ohshima, K.Abe, K.Katori, M.Fujiwara, T.Itahashi, H.Ogata, M.Kondo, M.Tanaka

Production of a Nuclear Polarized 3He+ Beam

doi: 10.1016/0370-2693(92)90517-8
Citations: PlumX Metrics

1992TA20      Hyperfine Interactions 74, 205 (1992)

M.Tanaka, T.Ohshima, K.Katori, M.Fujiwara, T.Itahashi, H.Ogata, M.Kondo

Polarized Heavy Ion Source Based on Spin and Charge Exchange Collisions and Laser Optical Pumping

doi: 10.1007/BF02398630
Citations: PlumX Metrics

1991KA40      J.Phys.(London) G17, S283 (1991)

H.Kawakami, S.Kato, T.Ohshima, S.Shibata, K.Ukai, N.Morikawa, N.Nogawa, K.Haga, T.Nagafuchi, M.Shigeta, Y.Fukushima, T.Taniguchi

New Upper Limit for the Electron Anti-Neutrino Mass from a Third Measurement at INS

RADIOACTIVITY 3H(β-); measured β-spectrum Kurie plot; deduced electron anti-neutrino mass upper limit, 95% confidence limit. Large Langmuir-Blodgett film β-ray sources.

doi: 10.1088/0954-3899/17/S/030
Citations: PlumX Metrics

1991KA41      Phys.Lett. 256B, 105 (1991)

H.Kawakami, S.Kato, T.Ohshima, S.Shibata, K.Ukai, N.Morikawa, N.Nogawa, K.Haga, T.Nagafuchi, M.Shigeta, Y.Fukushima, T.Taniguchi

New Upper Bound on the Electron Anti-Neutrino Mass

RADIOACTIVITY 3H(β-); measured β-spectra, Auger spectra response functions, 109Cd reference source; deduced anti-neutrino mass upper bound, 95% compound limit.

doi: 10.1016/0370-2693(91)90226-G
Citations: PlumX Metrics

1988KA03      Phys.Lett. 127A, 175 (1988)

H.Kawakami, S.Kato, F.Naito, K.Nisimura, T.Ohshima, S.Shibata, T.Suzuki, K.Ukai, N.Morikawa, N.Nogawa, T.Nagafuchi, H.Taketani, M.Iwahashi, K.Hisatake, Y.Fukushima, T.Matsuda, T.Taniguchi

Precise Measurement of Ag KLM and KLN Auger Spectra

RADIOACTIVITY 109Cd(EC); measured Auger spectra in 109Ag.

doi: 10.1016/0375-9601(88)90096-5
Citations: PlumX Metrics

1988KA12      Nucl.Phys. A478, 433c (1988)

S.Kato, H.Kawakami, F.Naito, K.Nisimura, T.Ohshima, S.Shibata, T.Suzuki, K.Ukai, N.Morikawa, N.Nogawa, T.Nagafuchi, H.Taketani, M.Iwahashi, K.Hisatake, Y.Fukushima, T.Matsuda, T.Taniguchi

Neutrino Mass Studied by Measuring Tritium Beta-Decay with an Iron-Free Beta-Ray Spectrometer

RADIOACTIVITY 3H(β-); measured β-spectrum features; deduced neutrino mass upper limit. Other data input.

doi: 10.1016/0375-9474(88)90877-9
Citations: PlumX Metrics

1988KA32      J.Phys.Soc.Jpn. 57, 2873 (1988)

H.Kawakami, S.Kato, F.Naito, K.Nisimura, T.Ohshima, S.Shibata, T.Suzuki, K.Ukai, N.Morikawa, N.Nogawa, T.Nagafuchi, H.Taketani, M.Iwahashi, K.Hisatake, Y.Fukushima, T.Matsuda, T.Taniguchi

Neutrino Mass and End-Point Energy of 3H β-Decay

RADIOACTIVITY 3H(β-); measured E(β); deduced β-endpoint energy, electron antineutrino mass upper limit.

doi: 10.1143/JPSJ.57.2873
Citations: PlumX Metrics

1987KA21      Phys.Lett. 121A, 414 (1987)

H.Kawakami, K.Nisimura, T.Ohshima, S.Shibata, Y.Shoji, I.Sugai, K.Ukai, T.Yasuda, N.Morikawa, N.Nogawa, T.Nagafuchi, F.Naito, T.Suzuki, H.Taketani, M.Iwahashi, K.Hisatake, M.Fujioka, Y.Fukushima, T.Matsuda, T.Taniguchi

Precise Measurement of Ag KLL Auger-Spectrum

RADIOACTIVITY 109Cd(EC); measured KLL Auger spectrum for 109Ag. Double focusing Fe-free β-ray spectrometer, 169Tm source standard.

doi: 10.1016/0375-9601(87)90489-0
Citations: PlumX Metrics

1987KA51      Phys.Lett. 187B, 198 (1987)

H.Kawakami, K.Nisimura, T.Ohshima, S.Shibata, Y.Shoji, I.Sugai, K.Ukai, T.Yasuda, N.Morikawa, N.Nogawa, T.Nagafuchi, F.Naito, T.Suzuki, H.Taketani, M.Iwahashi, K.Hisatake, M.Fujioka, Y.Fukushima, T.Matsuda, T.Taniguchi

An Upper Limit for the Mass of the Electron Anti-Neutrino from the INS Experiment

doi: 10.1016/0370-2693(87)90099-2
Citations: PlumX Metrics

1972AR29      Nucl.Phys. B48, 397 (1972)

S.Arai, S.Fukui, N.Horikawa, R.Kajikawa, T.Kasuga, H.Kobayakawa, A.Masaike, T.Matsuda, T.Nakanishi, T.Ohshima, M.Saito, S.Sugimoto, T.Yamaki, K.Amako, K.Yoshida

Measurement of the Asymmetry for π+ Photoproduction from Polarized Protons between 300 and 900 MeV

NUCLEAR REACTIONS 1H(γ, π+), E=300-900 MeV; measured σ(E). Polarized target.

doi: 10.1016/0550-3213(72)90178-2
Citations: PlumX Metrics

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