NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 27, 2024.

Search: Author = A.Kohama

Found 23 matches.

Back to query form

2020MA46      Phys.Rev. C 102, 034614 (2020)

K.Makiguchi, W.Horiuchi, A.Kohama

Utility of antiproton-nucleus scattering for probing nuclear surface density distributions

NUCLEAR REACTIONS ¹H(p-bar, X), (n-bar, X), (n, X), (p, X), ¹n(p-bar, X), E=0.030-10 GeV; analyzed experimental total σ(E) data by empirical parametrization. ¹²C, ¹⁶O, ^29,31F, ⁴⁰Ca(p-bar, X), (p, X), E=100-1000 MeV; calculated total σ(E), reaction probabilities, ratio of total reaction σ(E) for antiproton and proton scattering. ¹²C, ¹⁶O, ⁴⁰Ca(p-bar, p-bar), (p, p), E=180 MeV; calculated elastic scattering differential σ(θ), reaction probabilities. Glauber model. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.034614
Citations: PlumX Metrics

2018HA21      Phys.Rev. C 97, 054607 (2018)

S.Hatakeyama, W.Horiuchi, A.Kohama

Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

NUCLEAR REACTIONS ^120,132Sn, ²⁰⁸Pb(p, p), E=200, 325, 550, 800 MeV; calculated differential σ(θ), target two-parameter Fermi density distributions, scattering angles at the first peak position of σ(θ) using Glauber and black sphere (BS) model, and the spatial distribution of the scattering amplitude at the first and second peak of σ(θ) of one nucleon elastic scattering; deduced method for determining nuclear radii and diffuseness from first peak position and magnitude of differential σ(θ). ^{40,42,44,46,48,50,52,54,56,58,60}Ca, ^{56,58,60,62,64,66,68,70,72,74,76,78,80,82,84}Ni, ^{80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120}Zr, ^{100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140}Sn, ^{150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200}Yb, ^{182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226,228,230,232,234,236,238,240,242}Pb(p, p), (p, X), E=325, 550, 800 MeV; calculated rms radii, nuclear diffuseness of protons and neutrons from theoretical first peak position and amplitude of differential σ(θ) using HF+BCS method, total reaction cross sections by Glauber and black sphere (BS) models.

doi: 10.1103/PhysRevC.97.054607
Citations: PlumX Metrics

2014SI14      Phys.Rev. C 89, 067602 (2014)

L.Sihver, M.Lantz, A.Kohama

Improved parametrization of the transparency parameter in Kox and Shen models of total reaction cross sections

NUCLEAR REACTIONS C, ²⁷Al, Fe(¹²C, X), ²⁸Si(p, X), ¹H(²⁸Si, X), E=0.001-10 GeV/nucleon; calculated total reaction σ(E) using modified Kox and Shen model. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.067602
Citations: PlumX Metrics

2011II01      Prog.Theor.Phys.(Kyoto) 126, 1091 (2011)

K.Iida, K.Oyamatsu, B.Abu-Ibrahim, A.Kohama

Proton-Nucleus Total Reaction Cross Sections in the Optical Limit Glauber Theory -Subtle Dependence on the Equation of State of Nuclear Matter -

NUCLEAR REACTIONS ^112,124Sn, ⁸⁰Ni(p, X), E=40, 300, 800 MeV; calculated total σ. Glauber theory.

doi: 10.1143/PTP.126.1091
Citations: PlumX Metrics

2010AB13      Phys.Rev. C 81, 057601 (2010)

B.Abu-Ibrahim, A.Kohama

Scaling properties of proton-nucleus total reaction cross sections

doi: 10.1103/PhysRevC.81.057601
Citations: PlumX Metrics

2009AB07      J.Phys.Soc.Jpn. 78, 044201 (2009)

B.Abu-Ibrahim, S.Iwasaki, W.Horiuchi, A.Kohama, Y.Suzuki

Elastic and Total Reaction Cross Sections of Oxygen Isotopes in Glauber Theory

NUCLEAR REACTIONS ¹⁶O(p, p), E=317, 1000 MeV; ^20,21,23O(p, p), E=300 MeV; calculated σ(θ). ¹²C(¹⁵O, X), (¹⁶O, X), (¹⁷O, X), (¹⁸O, X), (¹⁹O, X), (²⁰O, X), (²¹O, X), (²²O, X), (²³O, X), (²⁴O, X), E=1 GeV/nucleon; calculated total reaction cross sections.

doi: 10.1143/JPSJ.78.044201
Citations: PlumX Metrics

2008AB07      Phys.Rev. C 77, 034607 (2008); Publshiers note Phys.Rev. C 81, 019901 (2010)

B.Abu-Ibrahim, W.Horiuchi, A.Kohama, Y.Suzuki

Reaction cross sections of carbon isotopes incident on a proton

NUCLEAR REACTIONS ¹H(¹²C, X), (¹³C, X), (¹⁴C, X), (¹⁵C, X), (¹⁶C, X), (¹⁷C, X), (¹⁸C, X), (¹⁹C, X), (²⁰C, X), (²²C, X), E=40, 100, 200, 300, 425, 550, 650, 800 MeV/nucleon; calculated reaction σ, density distributions using Glauber model. Comparison with experimental data.

doi: 10.1103/PhysRevC.77.034607
Citations: PlumX Metrics

2008KO29      Phys.Rev. C 78, 061601 (2008)

A.Kohama, K.Iida, K.Oyamatsu

Difference between interaction cross sections and reaction cross sections

NUCLEAR REACTIONS ¹²C(³He, X), (α, X), (⁶Li, X), (⁷Li, X), (⁹Be, X), (¹⁰B, X), (¹¹B, X), (¹²C, X), (¹³C, X), (¹⁴N, X), (¹⁵N, X), (¹⁶O, X), (¹⁷O, X), (¹⁸O, X), (¹⁹F, X), (²⁰Ne, X), (²¹Ne, X), (²³Na, X), (²⁴Mg, X), (²⁵Mg, X), (²⁷Al, X), (³⁵Cl, X), (³⁷Cl, X), (³⁶Ar, X), (³⁸Ar, X), (⁴⁰Ar, X), (⁸⁰Kr, X), E>800 MeV; calculated reaction σ. Comparisons with data.

doi: 10.1103/PhysRevC.78.061601
Citations: PlumX Metrics

2007HO09      Phys.Rev. C 75, 044607 (2007); Erratum Phys.Rev. C 76, 039903 (2007)

W.Horiuchi, Y.Suzuki, B.Abu-Ibrahim, A.Kohama

Systematic analysis of reaction cross sections of carbon isotopes

NUCLEAR REACTIONS ¹²C(¹²C, X), (¹³C, X), (¹⁴C, X), (¹⁵C, X), (¹⁶C, X), (¹⁷C, X), (¹⁸C, X), (¹⁹C, X), (²⁰C, X), (²²C, X), E=40-1000 MeV/nucleon; calculated reaction σ. Glauber approximation, eikonal model, comparison with data.

doi: 10.1103/PhysRevC.75.044607
Citations: PlumX Metrics

2005KO28      Phys.Rev. C 72, 024602 (2005)

A.Kohama, K.Iida, K.Oyamatsu

Reaction cross section described by a black sphere approximation of nuclei

NUCLEAR REACTIONS ⁴He, ^12,13C, ¹⁴N, ¹⁶O, ^20,22Ne, ^24,26Mg, ²⁸Si, ^32,34S, ³⁹K, ^40,42,44,48Ca, ^46,48Ti, ¹²⁰Sn, ²⁰⁸Pb(p, p), E ≈ 800-1100 MeV; analyzed σ(θ); deduced black-sphere radius parameters. ¹²C, ¹²⁰Sn, ²⁰⁸Pb(p, X), E ≈ 800 MeV; analyzed reaction, interaction σ.

doi: 10.1103/PhysRevC.72.024602
Citations: PlumX Metrics

2004KO34      Phys.Rev. C 69, 064316 (2004)

A.Kohama, K.Iida, K.Oyamatsu

Nuclear radius deduced from proton diffraction by a black nucleus

NUCLEAR REACTIONS ^58,60,62,64Ni(p, p), E ≈ 800-1050 MeV; ^90,92Zr, ¹²⁰Sn, ^144,154Sm, ¹⁷⁶Yb, ²⁰⁸Pb(p, p), E=800 MeV; analyzed σ(θ); deduced radii. Black-sphere approach.

doi: 10.1103/PhysRevC.69.064316
Citations: PlumX Metrics

2004KO65      Prog.Theor.Phys.(Kyoto), Suppl. 156, 143 (2004)

A.Kohama

Determination of Matter Surface Distribution of Neutron-Rich Nuclei and Effect of "Outer Surface"

NUCLEAR STRUCTURE ⁵⁸Ni; calculated neutron density distribution, dependence on neutron separation energy.

NUCLEAR REACTIONS ⁵⁸Ni(p, p), E not given; calculated σ(θ), density distribution dependence.

doi: 10.1143/PTPS.156.143
Citations: PlumX Metrics

2003KO67      J.Phys.Soc.Jpn. 72, 2766 (2003)

A.Kohama, R.Seki, A.Arima, S.Yamaji

Determination of Matter Surface Distribution of Neutron-rich Nuclei

NUCLEAR REACTIONS ^58,78Ni(p, p), E=1.047 GeV; calculated σ(θ), sensitivity to matter density distribution.

doi: 10.1143/JPSJ.72.2766
Citations: PlumX Metrics

2002KO66      Prog.Theor.Phys.(Kyoto), Suppl. 146, 577 (2002)

A.Kohama, R.Seki, A.Arima, S.Yamaji

Model-Independent Determination of Surface Density Distribution of Unstable Nuclei at Radioactive Beam Facilities

NUCLEAR REACTIONS ⁷⁸Ni(p, p), E=1.047 GeV; calculated σ(θ), dependence on surface density distribution.

doi: 10.1143/PTPS.146.577
Citations: PlumX Metrics

2000KO02      Nucl.Phys. A662, 175 (2000)

A.Kohama, K.Yazaki, R.Seki

Correlation and Finite Interaction-Range Effects in High-Energy Electron Inclusive Scattering

doi: 10.1016/S0375-9474(99)00408-X
Citations: PlumX Metrics

2000KO21      Nucl.Phys. A663-664, 373c (2000)

A.Kohama, K.Yazaki, R.Seki

Correlation and Finite Interaction-Range Effects in High-Energy Electron Inclusive Scattering

doi: 10.1016/S0375-9474(99)00620-X
Citations: PlumX Metrics

2000KO24      Nucl.Phys. A670, 206c (2000)

A.Kohama, K.Yazaki, R.Seki

Correlation and Finite Interaction-Range Effects in High Energy Electron Inclusive Scattering

doi: 10.1016/S0375-9474(00)00100-7
Citations: PlumX Metrics

1997IW03      Nucl.Phys. A627, 620 (1997)

T.Iwama, A.Kohama, K.Yazaki

Nuclear Transparency in a Relativistic Quark Model

NUCLEAR REACTIONS ¹²C, ⁵⁶Fe, ¹⁹⁷Au(e, e'p), E not given; analyzed nuclear transparency; deduced proton structure role.

doi: 10.1016/S0375-9474(97)00587-3
Citations: PlumX Metrics

1996SE09      Phys.Lett. 383B, 133 (1996)

R.Seki, T.D.Shoppa, A.Kohama, K.Yazaki

Nuclear Correlation and Finite Interaction-Range Effects in High-Energy (e, e'p) Nuclear Transparency

NUCLEAR STRUCTURE ¹⁶O, ⁴⁰Ca; calculated nuclear transparency at proton momentum of 4.49 GeV/c in (e, e'p) reaction. Glauber multiple scattering, all orders included.

doi: 10.1016/0370-2693(96)00735-6
Citations: PlumX Metrics

1995KO11      Phys.Lett. 344B, 61 (1995)

A.Kohama, K.Yazaki, R.Seki

Anomalous Mass Number Dependence of Nuclear Transparency

NUCLEAR STRUCTURE A=1-100; calculated nuclear transparency vs momentum transfer.

doi: 10.1016/0370-2693(94)01561-P
Citations: PlumX Metrics

1994KO21      Nucl.Phys. A575, 645 (1994)

A.Kohama, K.Yazaki

A Model for Nuclear Transparency in High-Energy Quasi-Elastic Scatterings

NUCLEAR REACTIONS ¹²C, ²⁷Al, ⁶³Cu, ²⁰⁸Pb(p, 2p), (e, e'p), E at ≤ 30 GeV/c; calculated nuclear transparency vs incident momentum. Internal structure of proton in quantum-mechanical model.

doi: 10.1016/0375-9474(94)90161-9
Citations: PlumX Metrics

1993KO03      Nucl.Phys. A551, 687 (1993)

A.Kohama, K.Yazaki, R.Seki

Nuclear Transparency in Electron-Nucleus Scattering

NUCLEAR REACTIONS ⁴He(e, e'p), E not given; calculated nuclear transparency. Glauber impulse approximation.

doi: 10.1016/0375-9474(93)90272-Y
Citations: PlumX Metrics

1992KO04      Nucl.Phys. A536, 716 (1992)

A.Kohama, K.Yazaki, R.Seki

Nuclear Transparency in the Glauber Impulse Approximation

NUCLEAR REACTIONS ⁴He, ¹²C, ¹⁶O, ²⁷Al, ⁶³Cu, ²⁰⁸Pb(p, p), E at ≈ 5-14 GeV/c; calculated σ relative to free p-p σ. Glauber impulse approximation, nuclear transparency.

doi: 10.1016/0375-9474(92)90120-9
Citations: PlumX Metrics