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NSR database version of April 26, 2024.

Search: Author = M.Hirata

Found 22 matches.

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2011NA23      Radiochim.Acta 99, 377 (2011)

Y.Nagame, M.Hirata

Production and properties of transuranium elements

doi: 10.1524/ract.2011.1853
Citations: PlumX Metrics

2005NA46      Radiochim.Acta 93, 519 (2005)

Y.Nagame, K.Tsukada, M.Asai, A.Toyoshima, K.Akiyama, Y.Ishii, T.Kaneko-Sato, M.Hirata, I.Nishinaka, S.Ichikawa, H.Haba, S.Enomoto, K.Matsuo, D.Saika, Y.Kitamoto, H.Hasegawa, Y.Tani, W.Sato, A.Shinohara, M.Ito, J.Saito, S.Goto, H.Kudo, H.Kikunaga, N.Kinoshita, A.Yokoyama, K.Sueki, Y.Oura, H.Nakahara, M.Sakama, M.Schadel, W.Bruchle, J.V.Kratz

Chemical studies on rutherfordium (Rf) at JAERI

NUCLEAR REACTIONS 248Cm(18O, 5n), E ≈ 90-100 MeV; measured excitation function. Chemical properties of rutherfordium studied.

doi: 10.1524/ract.2005.93.9-10.519
Citations: PlumX Metrics

2004NA10      Nucl.Phys. A734, 124 (2004)

Y.Nagame, H.Haba, K.Tsukada, M.Asai, A.Toyoshima, S.Goto, K.Akiyama, T.Kaneko, M.Sakama, M.Hirata, T.Yaita, I.Nishinaka, S.Ichikawa, H.Nakahara

Chemical studies of the heaviest elements

doi: 10.1016/j.nuclphysa.2004.01.021
Citations: PlumX Metrics

2003HI02      Phys.Rev. C 67, 034601 (2003)

M.Hirata, N.Katagiri, T.Takaki

πNN coupling and two-pion photoproduction on the nucleon

NUCLEAR REACTIONS 1H(γ, π+π-), (γ, π+π0), (γ, 2π0), E=400-900 MeV; 1n(γ, π+π-), (γ, π-π0), E=400-900 MeV; calculated σ, two-pion invariant mass spectra. Comparison of pseudoscalar and pseudovector coupling. Comparison with data.

doi: 10.1103/PhysRevC.67.034601
Citations: PlumX Metrics

2002HI11      Phys.Rev. C66, 014612 (2002)

M.Hirata, N.Katagiri, K.Ochi, T.Takaki

Nuclear Photoabsorption at Photon Energies between 300 and 850 MeV

NUCLEAR REACTIONS 1n, 1H, 7Li, C, Al, Cu, Sn, Pb(γ, X), E=300-850 MeV; calculated photoabsorption σ. 1H(γ, π+π-), (γ, π+π0), E=400-850 MeV; calculated σ. Projection method, unitarity relation, comparison with data.

doi: 10.1103/PhysRevC.66.014612
Citations: PlumX Metrics

1998HI12      Phys.Rev.Lett. 80, 5068 (1998)

M.Hirata, K.Ochi, T.Takaki

Cooperative Damping Mechanism of the Resonance in the Nuclear Photoabsorption

NUCLEAR REACTIONS 1H, 7Li, C, 27Al, 238U(γ, X), E=400-900 MeV; analyzed photoabsorption σ(E); deduced resonance damping mechanism.

doi: 10.1103/PhysRevLett.80.5068
Citations: PlumX Metrics

1998HI22      Prog.Theor.Phys.(Kyoto) 100, 681 (1998)

M.Hirata, K.Ochi, T.Takaki

Reaction Mechanism in the γN → ππN Reactions

NUCLEAR REACTIONS 1H(γ, π+π-), (γ, π+π0), (γ, 2π0), 1n(γ, π+π-), (γ, π0π-), E=450-850 MeV; analyzed σ, invariant mass spectra; deduced parameters. Phenomenological model.

doi: 10.1143/PTP.100.681
Citations: PlumX Metrics

1997OC01      Phys.Rev. C56, 1472 (1997)

K.Ochi, M.Hirata, T.Takaki

Photoabsorption on a Nucleon in the D13 Resonance Energy Region

NUCLEAR REACTIONS 1H, 1n(γ, π+π-), (γ, 2π0), E=410-850 MeV; 1H(γ, π+π0), E=410-850 MeV; 1n(γ, π0π-), E=410-850 MeV; analyzed total σ, nucleon total photabsorption σ; deduced Δ contributions.

doi: 10.1103/PhysRevC.56.1472
Citations: PlumX Metrics

1992AI02      Z.Phys. A343, 103 (1992)

N.Aizawa, M.Hirata

Analysis of the 3He(K-, K+)n Reaction by the Potential Quark Model

NUCLEAR REACTIONS 3He(K-, K+X), E at 1.8 GeV/c; calculated σ(θ) vs momentum. Nonrelativistic quark model, H dihyperon production.

doi: 10.1007/BF01291602
Citations: PlumX Metrics

1985SA12      Phys.Rev. C31, 1987 (1985)

K.Sakamoto, M.Hirata, A.Matsuyama, K.Yazaki

Interpretation of the Angular Distribution of the 4He(π-, n)3H Reaction Based on the Δ-Hole Model

NUCLEAR REACTIONS 4He(π-, n), E=100-250 MeV; calculated σ(θ). Isobar-hole model, one nucleon momentum distribution.

doi: 10.1103/PhysRevC.31.1987
Citations: PlumX Metrics

1984KA26      Phys.Lett. 144B, 23 (1984)

T.Karapiperis, M.Kobayashi, M.Hirata

Delta-Hole Description of the Double Charge Exchange Reaction 18O(π+, π-)18Ne(g.s.)

NUCLEAR REACTIONS 18O(π+, π-), E=164 MeV; calculated σ(θ); deduced nonanalog intermediate states, isobar-nucleon interaction role. Isobar-hole, T-matrix formalisms.

doi: 10.1016/0370-2693(84)90168-0
Citations: PlumX Metrics

1983HI07      Phys.Rev. C28, 785 (1983)

M.Hirata, F.Lenz, M.Thies

Delta-Nucleon and Pion-Nucleus Interactions

NUCLEAR REACTIONS 12C(π+, π+), E=162, 226 MeV; calculated σ(θ). 16O(π+, π+'p), (π-, π-'p), E=240 MeV; calculated σ ratio; deduced possible ΔT=1 excitation enhancements, quasifree isospin ratio violations. Isobar-nucleon interactions, knockout reactions.

doi: 10.1103/PhysRevC.28.785
Citations: PlumX Metrics

1983HI11      Phys.Lett. 128B, 15 (1983)

M.Hirata, K.Masutani, A.Matsuyama, K.Yazaki

The 4He(π-, n)3H Reaction in a Δ-Hole Model

NUCLEAR REACTIONS 4He(π-, n), E=100, 150, 200 MeV; calculated σ(θ). 2H(π+, p), E=142 MeV; calculated σ(θ), polarization vs θ; deduced isobar-nucleon to nucleon-nucleon transition interaction parameters.

doi: 10.1016/0370-2693(83)90064-3
Citations: PlumX Metrics

1981HI06      Phys.Rev. C24, 1604 (1981)

M.Hirata

Delta-Hole Formalism of Pion-Nucleus Single Charge Exchange Scattering

NUCLEAR REACTIONS 12C(π-, π-), E=70-230 MeV; calculated σ(E); 13C(π+, π0), E=70-230 MeV; calculated σ(E, θ). Delta-hole formalism.

doi: 10.1103/PhysRevC.24.1604
Citations: PlumX Metrics

1979HI04      Ann.Phys.(New York) 120, 205 (1979)

M.Hirata, J.H.Koch, F.Lenz, E.J.Moniz

Isobar-Hole Doorway States and π-16O Scattering

NUCLEAR REACTIONS 16O(π+, π+), (π-, π-), E=50-340 MeV; calculated σ(θ). Isobar-hole doorway state model.

doi: 10.1016/0003-4916(79)90287-2
Citations: PlumX Metrics

1978HI03      Phys.Rev.Lett. 40, 704 (1978)

M.Hirata

Application of the Isobar Doorway Model to the (π+, p) Reaction in the (3, 3) Resonance Region

NUCLEAR REACTIONS 12C(π+, p), E=120, 150, 180 MeV; calculated σ(Ep, θ). Reaction mechanism study.

doi: 10.1103/PhysRevLett.40.704
Citations: PlumX Metrics

1977HI10      Phys.Lett. 70B, 281 (1977)

M.Hirata, J.H.Koch, F.Lenz, E.J.Moniz

Extended Schematic Model for Pion-Nucleus Scattering

NUCLEAR REACTIONS 16O(π-, π-); calculated scattering parameters.

doi: 10.1016/0370-2693(77)90658-X
Citations: PlumX Metrics

1977HI11      Ann.Phys.(New York) 108, 116 (1977)

M.Hirata, F.Lenz, K.Yazaki

Excitation of Δ-Nuclear States in π-4He Scattering

NUCLEAR REACTIONS 4He(π-, π-), E=res; calculated σ.

doi: 10.1016/0003-4916(77)90354-2
Citations: PlumX Metrics

1972KU12      Nucl.Phys. A187, 186 (1972)

K.-I.Kubo, M.Hirata

DWBA Treatment of Cluster Transfer Reactions

NUCLEAR REACTIONS 12C(6Li, d), E=18 MeV; 12C, 16O(7Li, t), E=15, 16 MeV; analyzed σ(θ). Finite-range DWBA.

doi: 10.1016/0375-9474(72)90083-8
Citations: PlumX Metrics

1970FU11      Phys.Lett. 33B, 550 (1970)

J.I.Fujita, M.Hirata, K.Shoda

Coupling between Spin-Flip and Non-Spin-Flip Particle-Hole Pair States

NUCLEAR STRUCTURE 139Ba, 141Ce, 148Pm, 207Tl, 209Pb; calculated E1 widths of isobaric analog states.

doi: 10.1016/0370-2693(70)90345-X
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1970HI07      Phys.Lett. 32B, 656 (1970)

M.Hirata

Hindrance of the M1 Transition from the Analogue State to the Antianalogue State and Charge Exchange Spin-Flip Collective Mode

NUCLEAR STRUCTURE 49Sc, 51V; calculated hindrance of B(M1) for transiton from isobaric analog state to antianalog state.

doi: 10.1016/0370-2693(70)90435-1
Citations: PlumX Metrics

1970HI15      Progr.Theoret.Phys. 43, 1526 (1970)

M.Hirata

Study of Core Excited States in 17O

NUCLEAR STRUCTURE 17O; calculated negative-parity levels, S for 18O(p, d). p-H formalism.

doi: 10.1143/PTP.43.1526
Citations: PlumX Metrics

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