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NSR database version of August 4, 2015.

Search: Author = M.Morita

Found 41 matches.

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2007SU23     Phys.Lett. B 657, 32 (2007)

M.Sumihama, J.K.Ahn, H.Akimune, Y.Asano, W.C.Chang, S.Date, H.Ejiri, H.Fujimura, M.Fujiwara, K.Hicks, T.Hotta, K.Imai, T.Ishikawa, T.Iwata, H.Kawai, Z.Y.Kim, K.Kino, H.Kohri, N.Kumagai, S.Makino, T.Matsumura, N.Matsuoka, T.Mibe, M.Miyabe, Y.Miyachi, M.Morita, N.Muramatsu, T.Nakano, M.Niiyama, M.Nomachi, Y.Ohashi, H.Ohkuma, T.Ooba, D.S.Oshuev, C.Rangacharyulu, A.Sakaguchi, T.Sato, P.M.Shagin, Y.Shiino, H.Shimizu, Y.Sugaya, H.Toyokawa, A.Wakai, C.W.Wang, S.C.Wang, K.Yonehara, T.Yorita, M.Yosoi, R.G.T.Zegers

Backward-angle photoproduction of π0 mesons on the proton at Eγ = 1.5-2.4 GeV

NUCLEAR REACTIONS 1H(polarized γ, π0), E=1.5-2.4 GeV; measured missing mass spectra, σ(E, θ), beam asymmetry.

doi: 10.1016/j.physletb.2007.10.032
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetK2114.


2005IS02     Phys.Lett. B 608, 215 (2005)

T.Ishikawa, D.S.Ahn, J.K.Ahn, H.Akimune, W.C.Chang, S.Date, H.Fujimura, M.Fujiwara, K.Hicks, T.Hotta, K.Imai, H.Kawai, K.Kino, H.Kohri, T.Matsumura, T.Mibe, K.Miwa, M.Miyabe, M.Morita, T.Murakami, N.Muramatsu, H.Nakamura, M.Nakamura, T.Nakano, M.Niiyama, M.Nomachi, Y.Ohashi, T.Ooba, D.S.Oshuev, C.Rangacharyulu, A.Sakaguchi, Y.Shiino, Y.Sakemi, H.Shimizu, Y.Sugaya, M.Sumihama, Y.Toi, H.Toyokawa, C.W.Wang, T.Yorita, M.Yosoi, R.G.T.Zegers

φ photo-production from Li, C, Al, and Cu nuclei at Eγ = 1.5-2.4 GeV

NUCLEAR REACTIONS Li, C, Al, Cu(γ, X), E=1.5-2.4 GeV; measured kaon pair invariant mass spectra, φ mesons photoproduction σ; deduced target mass dependence, φ-nucleon interaction total σ.

doi: 10.1016/j.physletb.2005.01.023


2003MI24     Nucl.Phys. A721, 477c (2003)

K.Minamisono, K.Matsuta, T.Minamisono, T.Yamaguchi, T.Sumikama, T.Nagatomo, M.Ogura, T.Iwakoshi, M.Mihara, M.Fukuda, K.Koshigiri, M.Morita

G-Parity Irregular Current in the β Decays of the Mass A = 12 System - with the Refined Empirical Value of the Weak Magnetism -

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(β+) [from 10B(3He, n)]; measured Eβ, angular distributions from spin-aligned sources; deduced G-parity irregular induced tensor coefficient.

doi: 10.1016/S0375-9474(03)01103-5


2003NA08     Phys.Rev.Lett. 91, 012002 (2003)

T.Nakano, D.S.Ahn, J.K.Ahn, H.Akimune, Y.Asano, W.C.Chang, S.Date, H.Ejiri, H.Fujimura, M.Fujiwara, K.Hicks, T.Hotta, K.Imai, T.Ishikawa, T.Iwata, H.Kawai, Z.Y.Kim, K.Kino, H.Kohri, N.Kumagai, S.Makino, T.Matsumura, N.Matsuoka, T.Mibe, K.Miwa, M.Miyabe, Y.Miyachi, M.Morita, N.Muramatsu, M.Niiyama, M.Nomachi, Y.Ohashi, T.Ooba, H.Ohkuma, D.S.Oshuev, C.Rangacharyulu, A.Sakaguchi, T.Sasaki, P.M.Shagin, Y.Shiino, H.Shimizu, Y.Sugaya, M.Sumihama, H.Toyokawa, A.Wakai, C.W.Wang, S.C.Wang, K.Yonehara, T.Yorita, M.Yoshimura, M.Yosoi, R.G.T.Zegers

Evidence for a Narrow S = +1 Baryon Resonance in Photoproduction from the Neutron

NUCLEAR REACTIONS 12C(γ, K+K-), E ≈ 1.5-2.4 GeV; measured kaon missing mass spectra; deduced baryon resonance features.

doi: 10.1103/PhysRevLett.91.012002


2003ZE04     Phys.Rev.Lett. 91, 092001 (2003)

R.G.T.Zegers, M.Sumihama, D.S.Ahn, J.K.Ahn, H.Akimune, Y.Asano, W.C.Chang, S.Date, H.Ejiri, H.Fujimura, M.Fujiwara, K.Hicks, T.Hotta, K.Imai, T.Ishikawa, T.Iwata, H.Kawai, Z.Y.Kim, K.Kino, H.Kohri, N.Kumagai, S.Makino, T.Matsumura, N.Matsuoka, T.Mibe, K.Miwa, M.Miyabe, Y.Miyachi, M.Morita, N.Muramatsu, T.Nakano, M.Niiyama, M.Nomachi, Y.Ohashi, T.Ooba, H.Ohkuma, D.S.Oshuev, C.Rangacharyulu, A.Sakaguchi, T.Sasaki, P.M.Shagin, Y.Shiino, H.Shimizu, Y.Sugaya, H.Toyokawa, A.Wakai, C.W.Wang, S.C.Wang, K.Yonehara, T.Yorita, M.Yoshimura, M.Yosoi

Beam-Polarization Asymmetries for the p(γ(pol), K+)Λ and p(γ(pol), K+0 Reactions for Eγ = 1.5-2.4 GeV

NUCLEAR REACTIONS 1H(polarized γ, K+X), E=1.5-2.4 GeV; measured hyperon production associated beam polarization asymmetries. Comparison with model predictions.

doi: 10.1103/PhysRevLett.91.092001


2002MI03     Phys.Rev. C65, 015501 (2002)

K.Minamisono, K.Matsuta, T.Minamisono, T.Yamaguchi, T.Sumikama, T.Nagatomo, M.Ogura, T.Iwakoshi, M.Fukuda, M.Mihara, K.Koshigiri, M.Morita

New Limit of the G-Parity Irregular Weak Nucleon Current Detected in β Decays of Spin Aligned 12B and 12N

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(β+) [from 10B(3He, n)]; measured Eβ, angular distributions from spin-aligned sources; deduced tensor form factor, constraints on Kubodera-Delorme-Rho parameters.

doi: 10.1103/PhysRevC.65.015501


2002MI36     Z.Naturforsch. 57a, 557 (2002)

K.Minamisono, K.Matsuta, T.Minamisono, T.Yamaguchi, T.Sumikama, T.Nagatomo, M.Ogura, T.Iwakoshi, M.Mihara, M.Fukuda, K.Koshigiri, M.Morita

Spin Manipulation by Use of Nuclear Quadrupole Interactions - Quarks and Medium Effects in the Nucleus

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(EC) [from 10B(3He, n)]; measured Eβ, Iβ(θ, H, t) from oriented nuclei; deduced alignment correlation terms, axial charge, in-medium nucleon mass renormalization.


2002MI49     Prog.Theor.Phys.(Kyoto), Suppl. 146, 268 (2002)

T.Minamisono, K.Minamisono, K.Matsuta, M.Fukuda, M.Mihara, K.Koshigiri, M.Morita

β Decays of Nucleons and Quarks Embedded in the Nucleus

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(EC) [from 10B(3He, n)]; measured Eβ, Iβ(θ, H, t) from polarized sources; deduced in-medium nucleon mass renormalization, induced tensor form factor.


2000MI11     Nucl.Phys. A663-664, 951c (2000)

K.Minamisono, T.Yamaguchi, T.Sumikama, T.Nagatomo, K.Matsuta, T.Minamisono, M.Fukuda, K.Koshigiri, M.Morita

G-Parity Violation of Weak Nucleon Current and In-Medium Mass Renormalization of Nucleons Detected Through the β Decays of Spin Aligned 12B and 12N

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(β+) [from 10B(3He, n)]; measured β angular distributions from aligned nuclei; deduced axial charge, in-medium mass reduction of decaying nucleon.

doi: 10.1016/S0375-9474(99)00805-2


1999MI41     Nucl.Phys. (Supplement) A654, 955c (1999)

K.Minamisono, T.Yamaguchi, K.Matsuta, T.Minamisono, T.Ikeda, Y.Muramoto, M.Fukuda, Y.Nojiri, A.Kitagawa, K.Koshigiri, M.Morita

New Limit of the G-Parity Irregular Induced Tensor Current and the Axial Charge in the Weak Nucleon Current Detected in Alignment Correlation Terms of 12B and 12N β Decay

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(β-) [from 10B(3He, n)]; measured Eβ, Iβ(θ) from aligned nuclei; deduced G-parity violating induced tensor form factor.

doi: 10.1016/S0375-9474(00)88580-2


1998MI14     Phys.Rev.Lett. 80, 4132 (1998)

T.Minamisono, K.Matsuta, T.Yamaguchi, K.Minamisono, T.Ikeda, Y.Muramoto, M.Fukuda, Y.Nojiri, A.Kitagawa, K.Koshigiri, M.Morita

New Limit of the G-Parity Irregular Weak Nucleon Current Disclosed in β-Ray Angular Distributions from Spin Aligned 12B and 12N

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(β+) [from 10B(3He, n)]; measured β-ray angular distribution from oriented nuclei; deduced nonzero G-parity violating induced tensor form factor. β-NMR technique.

doi: 10.1103/PhysRevLett.80.4132


1995KO28     Nucl.Phys. A588, 165c (1995)

K.Koshigiri, R.Morita, M.Morita

Structure of Weak Nucleon Currents and Charge Asymmetry in Nuclear Beta Decay

RADIOACTIVITY 12B(β-); 12N(β+); analyzed Iβ(θ); deduced ft value, y asymmetry characteristics, induced tensor coupling constant. Models incorporating binding energy effects in nucleon wave function.

doi: 10.1016/0375-9474(95)00118-K


1994MO23     Nucl.Phys. A577, 387c (1994)

M.Morita, R.Morita, K.Koshigiri

Induced Terms of Weak Nucleon Currents in Light Nuclei

RADIOACTIVITY 12B(β-); 12N(β+); analyzed Iβ(θ) data, aligned nuclei; deduced induced tensor current limit, axial charge.

doi: 10.1016/0375-9474(94)90885-0


1993MO30     Hyperfine Interactions 78, 85 (1993)

M.Morita, R.Morita, M.Doi, T.Sato, H.Ohtsubo, K.Koshigiri

Induced Pseudoscalar Interaction in Weak Nucleon Current and Muon Capture in Hyperfine States of Muonic Deuterium

ATOMIC PHYSICS, Mesic-Atoms 2H; calculated muon capture rate in muonic deuterium.

doi: 10.1007/BF00568120


1992MO33     Z.Phys. C56, S156 (1992)

M.Morita, R.Morita

Muon capture in hyperfine states of muonic deuterium and induced pseudoscalar form factor

NUCLEAR REACTIONS 2H(μ-, X), E at rest; calculated capture rates from hyperfine states of muonic deuterium.

ATOMIC PHYSICS 2H(μ-, X), E at rest; calculated capture rates from hyperfine states of muonic deuterium.

doi: 10.1007/BF02426791


1990DO01     Nucl.Phys. A511, 507 (1990)

M.Doi, T.Sato, H.Ohtsubo, M.Morita

Effect of Meson Exchange Current on Deuteron Muon Capture

NUCLEAR REACTIONS 2H(μ-, 2n), E at rest; calculated neutron spectra, ν asymmetry. Meson exchange model, Siegert theorem.

doi: 10.1016/0375-9474(90)90107-W


1987FU13     Prog.Theor.Phys.(Kyoto) 78, 343 (1987)

M.Fukui, K.Koshigiri, T.Sato, H.Ohtsubo, M.Morita

Polarizations of 12B in Muon Capture Reaction with Higher Order Configuration Mixing

NUCLEAR REACTIONS 12C(polarized μ-, ν)12B, E not given; calculated 12B polarization; deduced pseudoscalar to axial coupling constant ratio (g(p)/g(A)). 12C(e, e'), E=80-330 MeV; calculated M1 form factor.


1987WA26     Prog.Theor.Phys.(Kyoto) 78, 114 (1987)

R.Watanabe, M.Fukui, H.Ohtsubo, M.Morita

Angular Distribution of Electrons in Bound Muon Decay

ATOMIC PHYSICS, Mesic-Atoms 16O, 40Ca, 90Zr, 208Pb; calculated bound muon decay characteristics, σ(θ(e)).


1985KO39     Prog.Theor.Phys.(Kyoto) 74, 736 (1985)

K.Koshigiri, Y.Kakudo, H.Ohtsubo, M.Morita

Muon Capture in Complex Nuclei of Nonzero Spin

NUCLEAR REACTIONS 13C, 14N(μ-, ν), E at rest; calculated partial muon capture rate, recoil nucleus longitudinal, average polarizations, average alignments; deduced (gp/gA) determination sifnificance.


1985MO13     Hyperfine Interactions 21, 143 (1985)

M.Morita

Weak Nucleon Currents in Beta Decay and Muon Capture

RADIOACTIVITY 12B(β-), 12N(β+); calculated β-spectral shape factors; analyzed Iβ(θ), oriented nuclei; deduced weak interaction, induced pseudoscalar, axial vector current form factors.


1984KO24     Prog.Theor.Phys.(Kyoto) 71, 1293 (1984)

K.Koshigiri, H.Ohtsubo, M.Morita

Muon Capture in 11B Muonic Atom and Hyperfine Spin Dependence

NUCLEAR REACTIONS 11B(μ-, n), E at rest; calculated total muon capture rate hyperfine state dependence, σ(En). 10Be levels deduced (gp/gA) dependence. Continuum shell model.

ATOMIC PHYSICS, Mesic-Atoms 11B; calculated muonic hyperfine state capture rate; deduced hyperfine state spin dependence.


1983FU15     Phys.Lett. 132B, 255 (1983)

M.Fukui, K.Koshigiri, T.Sato, H.Ohtsubo, M.Morita

The Average Polarization of 12B in the Muon Capture Reaction

NUCLEAR REACTIONS 12C(μ-, ν), E at rest; analyzed recoil 12B polarization; deduced (gp/g(A)). Multi-configurational shell model wave functions.

doi: 10.1016/0370-2693(83)90301-5


1983FU17     Prog.Theor.Phys.(Kyoto) 70, 827 (1983)

M.Fukui, K.Koshigiri, T.Sato, H.Ohtsubo, M.Morita

Nuclear Polarization of 12B in Muon Capture Reaction

NUCLEAR REACTIONS 12C(μ-, ν), E at rest; calculated average, longitudinal 12B recoil polarization; deduced (gp/g(A)). Multi-configuration shell model.


1982KO27     Prog.Theor.Phys.(Kyoto) 68, 687 (1982)

K.Koshigiri, H.Ohtsubo, M.Morita

Munon Capture in Hyperfine States of 11B Muonic Atom

ATOMIC PHYSICS, Mesic-Atoms 11B; calculated muonic hyperfine state capture rates vs pseudoscalar coupling constant. Different nuclear models.


1981AM05     Prog.Theor.Phys.(Kyoto) 65, 632 (1981)

H.Ami, M.Kobayashi, H.Ohtsubo, M.Morita

Longitudinal Polarization of 12B in Muon Capture Reaction

NUCLEAR REACTIONS 12C(μ-, ν), E at rest; calculated longitudinal polarization of 12B; deduced excited state effects, time reversal invariance validity. Vector, axial vector current, lepton current, current-current interactions.


1981KO27     Prog.Theor.Phys.(Kyoto) 66, 358 (1981)

K.Koshigiri, H.Ohtsubo, M.Morita

Core Polarization and Exchange Current Effects on Time Component of Axial Vector Current in A = 12 System

NUCLEAR STRUCTURE A=12; calculated axial vector current time component matrix element. Core polarization, exchange current effects.


1979KO12     Nucl.Phys. A319, 301 (1979)

K.Koshigiri, M.Nishimura, H.Ohtsubo, M.Morita

Beta-Ray Spectra of 12B and 12N and Conserved Vector Current

NUCLEAR STRUCTURE 12B, 12N; calculated β-spectra shape factors. Formalism treats lepton wave functions exactly, nuclear-matrix elements independent of electron energy.

doi: 10.1016/0375-9474(79)90517-7


1979KO39     Prog.Theor.Phys.(Kyoto) 62, 706 (1979)

K.Koshigiri, H.Ohtsubo, M.Morita

Nuclear Structure Effects on Weak Nuclear Form Factors of 0+-0- Transitions in A=16 System

NUCLEAR STRUCTURE 16O, 16N; calculated muon capture rate/β-decay rate. Realistic nuclear models, exact lepton wave functions.


1978KO31     Nucl.Phys. A312, 377 (1978)

M.Kobayashi, N.Ohtsuka, H.Ohtsubo, M.Morita

Average Polarization of 12B in Polarized Muon Capture

NUCLEAR REACTIONS 12C(polarized μ-, ν), E=at rest; calculated average polarization of recoil nucleus. Compared with data. Deduced ratio (g(p)-g(t))/gA.

doi: 10.1016/0375-9474(78)90598-5


1978MO02     Phys.Lett. 73B, 17 (1978)

M.Morita, M.Nishimura, H.Ohtsubo

Beta-Ray Angular Distribution in Aligned 12B and 12N and G-Parity Irregular Induced Tensor Current

RADIOACTIVITY 12B, 12N; calculated β(θ).

doi: 10.1016/0370-2693(78)90160-0


1975KU19     Nucl.Phys. A251, 465 (1975)

K.Kume, N.Ohtsuka, H.Ohtsubo, M.Morita

Asymmetry and Energy Spectrum of High-Energy Neutrons Emitted in Polarized Muon Capture by Nuclei

NUCLEAR REACTIONS 40Ca(μ-, n); calculated number of neutrons per muon capture.

doi: 10.1016/0375-9474(75)90542-4


1973OH04     Progr.Theor.Phys. 49, 701 (1973)

H.Ohtsubo, Y.Yokoo, M.Morita

Internal Conversion Coefficients for Electron Spin Polarized Fe57. II

NUCLEAR STRUCTURE 57Fe; calculated ICC.


1973OH05     Progr.Theor.Phys. 49, 877 (1973)

H.Ohtsubo, M.Sano, M.Morita

Relativistic Corrections to Nuclear Magnetic Moments and Gamow-Teller Matrix Elements of Beta Decay

NUCLEAR STRUCTURE A=11-43; 88Sr, 114Sn, 208Pb; calculated nuclear magnetic moment.


1973OT01     Progr.Theor.Phys. 50, 1771 (1973)

K.Otozai, R.Arakawa, M.Morita

Experimental Evidence for Nuclear Excitation by Electron Transition in 189Os

RADIOACTIVITY 189mOs; measured T1/2.


1973YO04     Progr.Theor.Phys. 50, 1894 (1973)

Y.Yokoo, S.Suzuki, M.Morita

Radiative Corrections to Asymmetry and Energy Spectrum of β Rays from Polarized Nuclei

RADIOACTIVITY 12B, 12N; calculated radiative corrections to β spectrum.


1972MO32     Prog.Theor.Phys. 47, 556 (1972)

M.Morita, M.Fuyuki, S.Tsukada

Theory of Allowed Beta Decay with Higher Order Corrections


1970YO05     Progr.Theor.Phys. 44, 294 (1970)

Y.Yokoo, T.Kodama, M.Morita

Internal Conversion Coefficients for Electron Spin Polarized Fe57

NUCLEAR STRUCTURE 57Fe; calculated I(ce), ICC for 14.4 keV transition.


1963MA09     Phys.Rev. 129, 1308 (1963)

Z.Matumoto, M.Yamada, I.T.Wang, M.Morita

Structure of Low-Lying 2+ States in Even-Even Nuclei and Beta-Gamma Angular Correlations

doi: 10.1103/PhysRev.129.1308


1963MO22     Suppl.Progr.Theoret.Phys. No.26, 1 (1963)

M.Morita

Theory of Beta Decay


1963MO23     Suppl.Progr.Theoret.Phys. No.26, 64 (1963)

M.Morita, R.Morita, T.Tsukamoto, M.Yamada

Clebsch-Gordan Coefficients for j2 = 5/2, 3 and 7/2


1959MO27     Phys.Rev. 113, 1584 (1959)

M.Morita

Higher Order Corrections to the Allowed Beta Decay

doi: 10.1103/PhysRev.113.1584


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