Nuclear Science References (NSR)

Mean-field update in the JAM microscopic transport model: Mean-field effects on collective flow in high-energy heavy-ion collisions at √ s_NN=2-20 GeV energies

doi: 10.1103/PhysRevC.105.014911
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2022NA35 Phys.Rev. C 106, 044902 (2022)

Y.Nara, A.Jinno, K.Murase, A.Ohnishi

Directed flow of Λ in high-energy heavy-ion collisions and Λ potential in dense nuclear matter

doi: 10.1103/PhysRevC.106.044902
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2021OG01 Phys.Rev. C 103, 065205 (2021)

K.Ogata, T.Fukui, Y.Kamiya, A.Ohnishi

Effect of deuteron breakup on the deuteron-Ξ correlation function

NUCLEAR REACTIONS ²H(Ξ^-, Ξ^-'), at relative momentum of <70 MeV/c; calculated scattering phase shifts, breakup effect of deuterons in the deuteron-Ξ^- correlation function using nucleon-nucleon-Ξ three-body reaction model with the continuum discretized coupled-channels (CDCC) method; deduced strong interaction enhanced by the deuteron breakup effect due to low-lying neutron-neutron continuum states.

doi: 10.1103/PhysRevC.103.065205
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2020IK02 Phys.Rev. C 101, 034607 (2020)

N.Ikeno, A.Ono, Ya.Nara, A.Ohnishi

Effects of Pauli blocking on pion production in central collisions of neutron-rich nuclei

NUCLEAR REACTIONS ¹²⁴Sn(¹³²Sn, X), E=270 MeV/nucleon; ¹⁹⁷Au(¹⁹⁷Au, X), E=400 MeV/nucleon; calculated Pauli blocking probability for forward and reverse production of Δ baryons0, Δ^-/Δ⁺⁺ ratio, Δ production per event, π^-/π⁺ production ratio, π production multiplicity, integrated Δ decay rates using combined antisymmertrized molecular dynamics (AMD) and the Jet AA Microscopic (JAM) transport model.

doi: 10.1103/PhysRevC.101.034607
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2020KA21 Phys.Rev.Lett. 124, 132501 (2020)

Y.Kamiya, Te.Hyodo, K.Morita, A.Ohnishi, W.Weise

K^-p Correlation Function from High-Energy Nuclear Collisions and Chiral SU(3) Dynamics

doi: 10.1103/PhysRevLett.124.132501
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2020MO04 Phys.Rev. C 101, 015201 (2020)

K.Morita, S.Gongyo, T.Hatsuda, T.Hyodo, Y.Kamiya, A.Ohnishi

Probing ΩΩ and pΩ dibaryons with femtoscopic correlations in relativistic heavy-ion collisions

doi: 10.1103/PhysRevC.101.015201
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2020OH04 Prog.Theor.Exp.Phys. 2020, 063D01 (2020)

A.Ohnishi, C.Ishizuka, K.Tsubakihara, Y.Hirata

Statistical double Λ hypernuclear formation from Ξ-absorption at rest in light nuclei

NUCLEAR REACTIONS ¹²C, ¹⁴N, ¹⁶O(Ξ^-, X)⁶He/¹⁰Be/¹³B, E at rest; analyzed available data; deduced formation probabilities.

doi: 10.1093/ptep/ptaa047
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2020TA14 Phys.Rev. C 102, 021901 (2020)

H.Taya, A.Park, S.Cho, P.Gubler, K.Hattori, J.Hong, X.-G.Huang, S.H.Lee, A.Monnai, A.Ohnishi, M.Oka, D.-L.Yang, for the ExHIC-P Collaboration

Signatures of the vortical quark-gluon plasma in hadron yields

doi: 10.1103/PhysRevC.102.021901
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2019ON02 Phys.Rev. C 100, 044617 (2019)

A.Ono, J.Xu, M.Colonna, P.Danielewicz, C.M.Ko, M.B.Tsang, Y.-J.Wang, H.Wolter, Y.-X.Zhang, L.-W.Chen, D.Cozma, H.Elfner, Z.-Q.Feng, N.Ikeno, B.-A.Li, S.Mallik, Y.Nara, T.Ogawa, A.Ohnishi, D.Oliinychenko, J.Su, T.Song, F.-S.Zhang, Z.Zhang

Comparison of heavy-ion transport simulations: Collision integral with pions and Δ resonances in a box

doi: 10.1103/PhysRevC.100.044617
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2018AK06 Phys.Rev. C 98, 024909 (2018)

Y.Akamatsu, M.Asakawa, T.Hirano, M.Kitazawa, K.Morita, K.Murase, Y.Nara, C.Nonaka, A.Ohnishi

Dynamically integrated transport approach for heavy-ion collisions at high baryon density

doi: 10.1103/PhysRevC.98.024909
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2018NA05 Eur.Phys.J. A 54, 18 (2018)

Y.Nara, H.Niemi, A.Ohnishi, J.Steinheimer, X.Luo, H.Stocker

Enhancement of elliptic flow can signal a first-order phase transition in high-energy heavy-ion collisions

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, x), E=3-30 GeV; calculated elliptic proton, charged hadron flow using microscopic model JAM; deduced temperature, baryon density time dependence, EoS (Equation of State).

doi: 10.1140/epja/i2018-12413-x
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2018WU10 Phys.Rev. C 98, 065801 (2018)

X.Wu, A.Ohnishi, H.Shen

Effects of quark-matter symmetry energy on hadron-quark coexistence in neutron-star matter

doi: 10.1103/PhysRevC.98.065801
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2018ZH12 Phys.Rev. C 97, 034625 (2018)

Y.-X.Zhang, Y.-J.Wang, M.Colonna, P.Danielewicz, A.Ono, M.B.Tsang, H.Wolter, J.Xu, L.-W.Chen, D.Cozma, Z.-Q.Feng, S.Das Gupta, N.Ikeno, C.-M.Ko, B.-A.Li, Q.-F.Li, Z.-X.Li, S.Mallik, Y.Nara, T.Ogawa, A.Ohnishi, D.Oliinychenko, M.Papa, H.Petersen, J.Su, T.Song, J.Weil, N.Wang, F.g-S.Zhang, Z.Zhang

Comparison of heavy-ion transport simulations: Collision integral in a box

doi: 10.1103/PhysRevC.97.034625
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2017HA26 Nucl.Phys. A967, 856 (2017)

T.Hatsuda, K.Morita, A.Ohnishi, K.Sasaki

pΞ^-Correlation in Relativistic Heavy Ion Collisions with Nucleon-Hyperon Interaction from Lattice QCD

doi: 10.1016/j.nuclphysa.2017.04.041
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2016IK01 Phys.Rev. C 93, 044612 (2016), Erratum Phys.Rev. C 97, 069901 (2018)

N.Ikeno, A.Ono, Y.Nara, A.Ohnishi

Probing neutron-proton dynamics by pions

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), E=0.1-1.6 GeV/nucleon; calculated charged pion multiplicities of π⁺ and π^- by hadronic cascade model (JAM), compared with experimental data. ¹³²Sn(¹²⁴Sn, X), E=300 MeV/nucleon; calculated time evolution of the neutron and proton densities, reaction rates of Δ production and Δ absorption and the numbers of existing Δ resonances and pions, time evolution of Δ^-/Δ⁺⁺, π^-/π⁺, squared ratio of neutrons and protons, nucleon ratios, momentum distribution of π^- and π⁺ using antisymmetrized molecular dynamics (AMD) and JAM.

doi: 10.1103/PhysRevC.93.044612
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2016MO27 Phys.Rev. C 94, 031901 (2016), Erratum Phys.Rev. C 100, 069902 (2019)

K.Morita, A.Ohnishi, F.Etminan, T.Hatsuda

Probing multistrange dibaryons with proton-omega correlations in high-energy heavy ion collisions

doi: 10.1103/PhysRevC.94.031901
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2016NA30 Phys.Rev. C 94, 034906 (2016)

Y.Nara, H.Niemi, A.Ohnishi, H.Stocker

Examination of directed flow as a signature of the softest point of the equation of state in QCD matter

doi: 10.1103/PhysRevC.94.034906
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2016NA35 Nucl.Phys. A956, 284 (2016)

Y.Nara, A.Ohnishi

Does non-monotonic behavior of directed flow signal the onset of deconfinement?

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, p), (¹⁹⁷Au, π), E at √ s_NN=7.7-27 GeV; measured Ep, Ip(θ), Eπ, Iπ(θ); deduced proton, pion directed flow vs rapidity, possible deconfinement; calculated proton, pion directed flow vs rapidity using JAM transport model with potentials from QMD.

doi: 10.1016/j.nuclphysa.2016.01.026
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2016OH03 Nucl.Phys. A954, 294 (2016)

A.Ohnishi, K.Morita, K.Miyahara, T.Hyodo

Hadron-hadron correlation and interaction from heavy-ion collisions

doi: 10.1016/j.nuclphysa.2016.05.010
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2015MO04 Phys.Rev. C 91, 024916 (2015)

K.Morita, T.Furumoto, A.Ohnishi

ΛΛ interaction from relativistic heavy-ion collisions

doi: 10.1103/PhysRevC.91.024916
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2013IS03 Phys.Rev. C 87, 021304 (2013)

M.Isaka, M.Kimura, A.Dote, A.Ohnishi

Splitting of the p orbit in triaxially deformed _Λ²⁵MG

NUCLEAR STRUCTURE ²⁵Mg; calculated levels, J, π, rotational bands, single-particle energy contours in β-γ plane, Intraband B(E2) for hypernucleus relative to ²⁴Mg nucleus. Hyper-antisymmetrized molecular dynamics calculations.

doi: 10.1103/PhysRevC.87.021304
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2013IS11 Nucl.Phys. A914, 189c (2013)

M.Isaka, M.Kimura, A.Dote, A.Ohnishi

Excited states with Λ hyperon in p-orbit in ²⁵_ΛMg

NUCLEAR STRUCTURE ²⁵Mg; calculated Λ hypernucleus levels, J, π, bands, deformation using antisymmetrized molecular dynamics.

doi: 10.1016/j.nuclphysa.2013.01.027
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2013OH07 Nucl.Phys. A914, 367c (2013)

A.Ohnishi, S.Cho, T.Furumoto, T.Hyodo, D.Jido, C.M.Ko, K.Morita, S.H.Lee, M.Nielsen, T.Sekihara, S.Yasui, K.Yazaki, for the ExHIC Collaboration

Exotic hadrons and hadron-hadron interactions in heavy-ion collisions

doi: 10.1016/j.nuclphysa.2013.01.083
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2013TS03 Nucl.Phys. A914, 438c (2013)

K.Tsubakihara, A.Ohnishi

Three-body couplings in RMF and its effects on hyperonic star equation of state

NUCLEAR STRUCTURE C, O, Si, Ca, Ni, Zr, Sn, Pb; calculated Λ hypernuclei mass, Q using three-body coupling parameters sets TB-a and TB-b within relativistic mean field. Compared to data.

doi: 10.1016/j.nuclphysa.2013.04.006
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2012IS02 Phys.Rev. C 85, 034303 (2012)

M.Isaka, H.Homma, M.Kimura, A.Dote, A.Ohnishi

Modification of triaxial deformation and change of spectrum in Λ ²⁵Mg caused by the Λ hyperon

NUCLEAR STRUCTURE ²⁵Mg; calculated levels, J, π, bands, density distribution, and β-γ surface contours, deformation parameters, B(E2) values of hypernucleus. Antisymmetrized molecular dynamics for hypernucleus (HyperAMD) and Generator coordinate method (GCM). ²⁴Mg; calculated levels, J, π, bands, density distribution, and β-γ surface contours, deformation parameters, B(E2) values. Antisymmetrized molecular dynamics, and Generator coordinate method (GCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.034303
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2011CH63 Phys.Rev. C 84, 064910 (2011)

S.Cho, T.Furumoto, T.Hyodo, D.Jido, C.M.Ko, S.H.Lee, M.Nielsen, A.Ohnishi, T.Sekihara, S.Yasui, K.Yazaki

Exotic hadrons in heavy ion collisions

doi: 10.1103/PhysRevC.84.064910
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2011IS02 Phys.Rev. C 83, 044323 (2011)

M.Isaka, M.Kimura, A.Dote, A.Ohnishi

Deformation of hypernuclei studied with antisymmetrized molecular dynamics

NUCLEAR STRUCTURE ^8,9Be, ^12,13C, ^19,20,21Ne; calculated energy curves, total energies and binding energies, rms radii as function of β and γ deformation parameters, and density plots for hypernuclei using antisymmetrized molecular dynamics (HyperAMD) for structure of p-sd shell hypernuclei. Possibility of parity inversion in ²⁰Ne hypernucleus.

doi: 10.1103/PhysRevC.83.044323
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2011IS03 Phys.Rev. C 83, 054304 (2011)

M.Isaka, M.Kimura, A.Dote, A.Ohnishi

Shell and cluster states of ²¹_ΛNe studied with antisymmetrized molecular dynamics

NUCLEAR STRUCTURE ²¹Ne; calculated levels, J, π, K=0+ and 0- bands, B(E2), rms radii, density distributions of hypernucleus. Antisymmetrized molecular dynamics (AMD) for hypernuclei. Comparison with AMD calculations for levels, J, π, bands in ²⁰Ne. Cluster structure.

doi: 10.1103/PhysRevC.83.054304
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2011MA10 Phys.Rev. C 83, 024312 (2011)

H.Matsumiya, K.Tsubakihara, M.Kimura, A.Dote, A.Ohnishi

Level structure and production cross section of 12 over Ξ Be studied with coupled-channels antisymmetrized molecular dynamics

NUCLEAR STRUCTURE ^11,12C, ¹¹B, ¹²Be; calculated levels, J, π, rms radii, β and γ deformations, density distributions. Coupled-channel antisymmetrized molecular dynamics. Multistrangeness system. Comparison with experimental data and with shell model predictions.

NUCLEAR REACTIONS ¹²C(π⁺, K⁺)¹²C, E at 1050 MeV/c; ¹²C(K^-, K⁺)¹²Be, E at 1800 MeV/c; calculated spectra, differential cross sections for production of hypernuclei ¹²C and ¹²Be, spectroscopic factors. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.024312
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2011YO09 J.Korean Phys.Soc. 59, 1003s (2011)

C.J.Yoon, H.Akikawa, K.Aoki, Y.Fukao, H.Funahashi, M.Hayata, K.Imai, K.Miwa, H.Okada, N.Saito, H.D.Sato, K.Shoji, H.Takahashi, K.Taketani, J.Asai, M.Kurosawa, M.Ieiri, T.Hayakawa, T.Kishimoto, A.Sato, Y.Shimizu, K.Yamamoto, T.Yoshida, T.Hibi, K.Nakazawa, J.K.Ahn, B.H.Choi, S.J.Kim, S.H.Kim, B.D.Park, I.G.Park, J.S.Song, C.S.Yoon, K.Tanida, A.Ohnishi, and the KEK-PS E522 Collaboration

Probing ΛΛ Potential

doi: 10.3938/jkps.59.1003
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2010MA71 Nucl.Phys. A835, 366c (2010)

H.Matsumiya, K.Tsubakihara, M.Isaka, M.Kimura, A.Dote, A.Ohnishi

Spin-dependence of the Ξ-N interaction and the Ξ hypernuclear production spectrum

NUCLEAR STRUCTURE ¹²Be; calculated Ξ hypernucleus levels, J, π using different interactions. ¹²C; calculated Λ hypernucleus quadrupole deformation energy.

doi: 10.1016/j.nuclphysa.2010.01.220
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2010OH03 Nucl.Phys. A835, 374c (2010)

A.Ohnishi, K.Tsubakihara, K.Sumiyoshi, C.Ishizuka, S.Yamada, H.Suzuki

EOS of hyperonic matter for core-collapse supernovae

doi: 10.1016/j.nuclphysa.2010.01.222
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2010SA03 Phys.Rev. C 81, 014002 (2010)

P.K.Sahu, K.Tsubakihara, A.Ohnishi

Nuclear matter and finite nuclei in an effective chiral model

NUCLEAR STRUCTURE ²⁰⁸Pb; calculated neutron single-particle energies in the effective chiral models TM1, SCL2, SCL2 and STO.

doi: 10.1103/PhysRevC.81.014002
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2010SU32 Nucl.Phys. A835, 295c (2010)

K.Sumiyoshi, K.Nakazato, C.Ishizuka, A.Ohnishi, S.Yamada, H.Suzuki

Emergence of hyperons in failed supernovae with short neutrino bursts

doi: 10.1016/j.nuclphysa.2010.01.205
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2010TS02 Phys.Rev. C 81, 065206 (2010)

K.Tsubakihara, H.Maekawa, H.Matsumiya, A.Ohnishi

Λ hypernuclei and neutron star matter in a chiral SU(3) relativistic mean field model with a logarithmic potential

NUCLEAR STRUCTURE ¹²C, ¹⁶O, ²⁸Si, ^40,48Ca, ⁵⁸Ni, ⁹⁰Zr, ¹¹⁶Sn, ^196,208Pb; calculated binding energies, charge rms radii. ^12,13C; calculated separation energies of hypernuclei. Chiral SU(3) symmetric RMF model with SCL3, SCL2, TM1 and TM2 calculations.

doi: 10.1103/PhysRevC.81.065206
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2009FR11 Nucl.Phys. A830, 519c (2009)

R.J.Fries, T.Kunihiro, B.Muller, A.Ohnishi, A.Schafer

From 0 to 5000 in 2 x 10^-24 seconds: Entropy production in relativistic heavy-ion collisions

doi: 10.1016/j.nuclphysa.2009.09.041
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2009OH04 Phys.Rev. C 80, 038202 (2009)

A.Ohnishi, D.Jido, T.Sekihara, K.Tsubakihara

Possibility of an s-wave pion condensate in neutron stars reexamined

doi: 10.1103/PhysRevC.80.038202
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2007MA73 Eur.Phys.J. A 33, 269 (2007)

H.Maekawa, K.Tsubakihara, A.Ohnishi

Analysis of (π^±, K⁺) and (K^-, K⁺) hypernuclear production spectra in distorted-wave impulse approximation

NUCLEAR REACTIONS ²⁸Si(π⁺, K⁺), E at 1.2 GeV/c; C, Al, Cu, Ag, Pb(π⁺, K⁺), E at 1.65 GeV/c; ¹²C, ²⁷Al(K^-, K⁺), E at 1.65 GeV/c; calculated hypernuclei production σ(θ, E).

doi: 10.1140/epja/i2007-10479-1
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2007OH08 J.Phys.(London) G34, S655 (2007)

A.Ohnishi, N.Kawamoto, K.Miura

Phase diagram at finite temperature and quark density in the strong coupling region of lattice QCD for colour SU(3)

doi: 10.1088/0954-3899//34/8/S66
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2007TS08 Eur.Phys.J. A 33, 295 (2007)

K.Tsubakihara, H.Maekawa, A.Ohnishi

Hypernuclei and nuclear matter in a chiral SU(3) RMF model

doi: 10.1140/epja/i2007-10474-6
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2007YO01 Phys.Rev. C 75, 022201 (2007)

Search for the H-dibaryon resonance in ¹²C(K^-, K⁺ΛΛX)

NUCLEAR REACTIONS ¹²C(K^-, K⁺X), E at 1.67 GeV/c; measured ΛΛ invariant mass spectra; deduced σ upper limit for H-dibaryon production.

doi: 10.1103/PhysRevC.75.022201
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2006OH03 Pramana 66, 797 (2006)

A.Ohnishi, M.Isse, N.Otuka, P.K.Sahu, Y.Nara

Collective flows in high-energy heavy-ion collisions at AGS and SPS energies

NUCLEAR REACTIONS Pb(Pb, X), ¹⁹⁷Au(¹⁹⁷Au, X), E=2-158 GeV/nucleon; calculated protons sideward, directed, and elliptic flow. Nonequilibrium transport model, comparison with data.

doi: 10.1007/BF02704808
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2006SA24 Pramana 66, 809 (2006)

P.K.Sahu, N.Otuka, M.Isse, Y.Nara, A.Ohnishi

Re-hardening of hadron transverse mass spectra in relativistic heavy-ion collisions

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), ²⁰⁸Pb(²⁰⁸Pb, X), E=high; analyzed particle rapidity distributions, transverse mass spectra; deduced possible quark-gluon plasma signal. Jet-implemented hadron-string cascade model.

doi: 10.1007/BF02704779
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2006SA34 Pramana 67, 257 (2006)

P.K.Sahu, A.Ohnishi, M.Isse, N.Otuka, S.C.Phatak

Elliptic flow in a hadron-string cascade model at 130 GeV energy

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), E(cm)=130 GeV/nucleon; calculated elliptic flow vs transverse momentum, pseudo-rapidity, centrality. Jet-implemented hadron-string cascade model, comparison with data.

doi: 10.1007/s12043-006-0070-5
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2005HI21 Phys.Rev. C 72, 041901 (2005)

T.Hirano, M.Isse, Y.Nara, A.Ohnishi, K.Yoshino

Hadron-string cascade versus hydrodynamics in Cu+Cu collisions at √ s_NN = 200 GeV

NUCLEAR REACTIONS Cu(Cu, X), E(cm)=200 GeV/nucleon; calculated charged hadrons pseudorapidity and transverse momentum distributions, elliptic flow. Hadronic cascade and ideal hydrodynamic models.

doi: 10.1103/PhysRevC.72.041901
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2005IS12 Prog.Theor.Phys.(Kyoto) 114, 573 (2005)

A.Isshiki, K.Naito, A.Ohnishi

Antisymmetrized Molecular Dynamics with Coherent State Pions and Its Application to Excited Spectrum of ¹²C

NUCLEAR STRUCTURE ¹²C; calculated level energies. Antisymmetrized molecular dynamics with coherent state pions.

doi: 10.1143/PTP.114.573
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2005IS15 Phys.Rev. C 72, 064908 (2005)

M.Isse, A.Ohnishi, N.Otuka, P.K.Sahu, Y.Nara

Mean-field effects on collective flow in high-energy heavy-ion collisions at 2-158A GeV energies

NUCLEAR REACTIONS Pb(Pb, X), ¹⁹⁷Au(¹⁹⁷Au, X), E=2-158 GeV/nucleon; analyzed collective flow data; deduced mean-field effects. Nonequilibrium transport model.

doi: 10.1103/PhysRevC.72.064908
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2004IS18 Prog.Theor.Phys.(Kyoto), Suppl. 156, 152 (2004)

C.Ishizuka, A.Ohnishi, K.Sumiyoshi, S.Yamada

Finite Temperature Effects on Supernova Explosion Energy and Hyperon Composition

doi: 10.1143/PTPS.156.152
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2004YA31 Prog.Theor.Phys.(Kyoto), Suppl. 156, 150 (2004)

S.Yamaguchi, A.Ohnishi

Radial Expansion Effects on Spallation IMF Formation

NUCLEAR REACTIONS O, Na, Sc(p, X), E=high; calculated intermediate mass fragment energy and angular distributions.

doi: 10.1143/PTPS.156.150
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2003IS08 Nucl.Phys. A723, 517 (2003)

C.Ishizuka, A.Ohnishi, K.Sumiyoshi

Liquid-gas phase transition of supernova matter and its relation to nucleosynthesis

doi: 10.1016/S0375-9474(03)01324-1
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2003SA25 Pramana 60, 1107 (2003)

P.K.Sahu, N.Otuka, A.Ohnishi, M.Baldo

Systematics of elliptic flow in heavy-ion collisions

doi: 10.1007/BF02707040
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2003SA60 Pramana 61, 1027 (2003)

P.K.Sahu, A.Ohnishi

Radial, sideward and elliptic flow at AGS energies

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), E=0.2-11.6 GeV/nucleon; analyzed sideward and elliptic flow.

doi: 10.1007/BF02704474
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2002HI14 Nucl.Phys. A707, 193 (2002)

Y.Hirata, A.Ohnishi, Y.Nara, T.Kido, T.Maruyama, N.Otuka, K.Niita, H.Takada, S.Chiba

Sideward Peak of Intermediate Mass Fragments in High Energy Proton Induced Reactions

NUCLEAR REACTIONS ¹⁹⁷Au(p, X), E=12 GeV; calculated fragments energy, angle, and mass distributions; deduced intermediate mass fragment formation and sideward enhancement mechanism features. Transport and nonequilibrated percolation models.

doi: 10.1016/S0375-9474(02)00747-9
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2002IS14 Prog.Theor.Phys.(Kyoto), Suppl. 146, 373 (2002)

C.Ishizuka, A.Ohnishi, K.Sumiyoshi

Fragment Distribution in Coexistence Phase of Supernova Matter

doi: 10.1143/PTPS.146.373
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2002IS15 Prog.Theor.Phys.(Kyoto), Suppl. 146, 569 (2002)

C.Ishizuka, A.Ohnishi, K.Sumiyoshi

Nucleosynthesis and Characteristics in Liquid-Gas Coexistence Phase of Supernova Matter

doi: 10.1143/PTPS.146.569
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2002IS16 Prog.Theor.Phys.(Kyoto), Suppl. 146, 571 (2002)

A.Isshiki, A.Ohnishi

Lambda-Sigma Mixing Induced by Condensed Pions in Dense Matter

doi: 10.1143/PTPS.146.571
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2001OH05 Nucl.Phys. A684, 595c (2001)

A.Ohnishi, Y.Hirata, Y.Nara, S.Shinmura, Y.Akaishi

Hyperon Distribution and Correlation in (K^-, K⁺) Reactions

NUCLEAR REACTIONS ⁹Be(K^-, K⁺), E at 1.8 GeV/c; ¹²C(K^-, K⁺), E at 1.65 GeV/c; analyzed kaon and hyperon momentum spectra, ΛΛ invariant mass spectra. Intra-nuclear cascade model.

doi: 10.1016/S0375-9474(01)00388-8
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2001OH08 Nucl.Phys. A691, 242c (2001)

A.Ohnishi, Y.Hirata, Y.Nara, S.Shinmura, Y.Akaishi

Λ-Λ Correlation in (K^-, K⁺) Reaction - Is There a Virtual Pole ?

NUCLEAR REACTIONS ¹²C(K^-, K⁺), E at 1.65 GeV/c; ⁹Be(K^-, K⁺), E at 1.8 GeV/c; calculated kaon spectra, hyperon momentum distributions, correlations. Microscopic transport model.

doi: 10.1016/S0375-9474(01)01037-5
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2001SA61 Nucl.Phys. A691, 439c (2001)

P.K.Sahu, A.Ohnishi

Hyperonic Matter in Neutron Star

doi: 10.1016/S0375-9474(01)01070-3
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2000NA03 Phys.Rev. C61, 024901 (2000)

Y.Nara, N.Otuka, A.Ohnishi, K.Niita, S.Chiba

Relativistic Nuclear Collisions at 10A GeV Energies from p + Be to Au + Au with the Hadronic Cascade Model

NUCLEAR REACTIONS ¹n, ¹H(p, X), (π⁺, X), (π^-, X), (K⁺, X), (K^-, X), E(cm) ≈ 1-3 GeV; analyzed total, elastic, pion and hyperon production σ. Be(p, X), ²⁷Al, Cu, ¹⁹⁷Au(p, X), (Si, X), E at 14.6 GeV/c; calculated proton, pion, kaon invariant cross sections, transverse momenta; ¹⁹⁷Au(¹⁹⁷Au, X), E at 11.6 GeV/c; calculated protons, pions rapidity, transverse mass; deduced mass dependence of collision dynamics. Hadronic cascade model, comparisons with data.

doi: 10.1103/PhysRevC.61.024901
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2000OH04 Nucl.Phys. A670, 297c (2000)

A.Ohnishi, Y.Hirata, Y.Nara, S.Shinmura, Y.Akaishi

Can We Extract Lamda-Lambda Interaction from Two-Particle Momentum Correlation ?

NUCLEAR REACTIONS ¹²C(K^-, K⁺), E at 1.65 GeV/c; analyzed invariant mass spectra; deduced hyperon-hyperon scattering parameters.

doi: 10.1016/S0375-9474(00)00117-2
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2000SA22 Nucl.Phys. A672, 376 (2000)

P.K.Sahu, W.Cassing, U.Mosel, A.Ohnishi

Baryon Flow from SIS to AGS Energies

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), E=0.25-11.0 GeV/nucleon; analyzed proton spectra, sideward and elliptic flow features; deduced parameters.

doi: 10.1016/S0375-9474(99)00854-4
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2000SA53 Prog.Theor.Phys.(Kyoto) 104, 1163 (2000)

P.K.Sahu, A.Ohnishi

SU(2) Chiral Sigma Model and Properties of Neutron Stars

doi: 10.1143/PTP.104.1163
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1999HI06 Prog.Theor.Phys.(Kyoto) 102, 89 (1999)

Y.Hirata, Y.Nara, A.Ohnishi, T.Harada, J.Randrup

Quantum Fluctuation Effects on Hyperfragment Formation from Ξ^- Absorption at Rest on ¹²C

NUCLEAR REACTIONS ¹²C(Ξ^-, X), E at rest; calculated hypernucleus fragments mass distributions; deduced quantum fluctuation effects. Microscopic transport model.

doi: 10.1143/PTP.102.89
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1998HI16 Nucl.Phys. A639, 389c (1998)

Y.Hirata, Y.Nara, A.Ohnishi, T.Harada, J.Randrup

Formation of Twin and Double Λ Hypernuclei from Ξ^- Absorption at Rest on ¹²C

NUCLEAR REACTIONS ¹²C(Ξ^-, X), E at rest; calculated hypernucleus production rates.

doi: 10.1016/S0375-9474(98)00302-9
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1998MY02 Prog.Theor.Phys.(Kyoto) 99, 801 (1998)

T.Myo, A.Ohnishi, K.Kato

Resonance and Continuum Components of the Strength Function

NUCLEAR STRUCTURE ¹¹Be; calculated radii, dipole strength distributions, bound, resonance, continuum contributions; deduced no resonance role in breakup. Complex scaling method. Comparison with data.

doi: 10.1143/PTP.99.801
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1998OH02 Nucl.Phys. A630, 223c (1998)

A.Ohnishi, J.Randrup, Y.Hirata, N.Otuka, Y.Nara, T.Harada

Quantum Fluctuation Effects on Nuclear and Atomic Cluster Formation

doi: 10.1016/S0375-9474(97)00760-4
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1997NA07 Nucl.Phys. A614, 433 (1997)

Y.Nara, A.Ohnishi, T.Harada, A.Engel

K⁺ Momentum Spectrum from (K^-, K⁺) Reactions in the Intranuclear Cascade Model

NUCLEAR REACTIONS ¹²C, ²⁷Al, ⁶³Cu, ¹⁰⁷Ag, ²⁰⁸Pb(K^-, K⁺), E at 1.65 GeV/c; analyzed spectra, σ(θ) vs momentum, energy. Intranuclear cascade model.

doi: 10.1016/S0375-9474(96)00427-7
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1997OH01 Phys.Lett. 394B, 260 (1997)

A.Ohnishi, J.Randrup

Quantum Fluctuation Effects on Nuclear Fragment Formation

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹⁷Au, X), E=100-400 MeV/nucleon; analyzed intermediate mass fragment multiplicity before, after statistical decay. Quantal Langevin model.

doi: 10.1016/S0370-2693(97)00032-4
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1997OH06 Phys.Rev. C56, 2767 (1997)

A.Ohnishi, Y.Nara, V.Koch

Branching Ratio Change in K^- Absorption at Rest and the Nature of the Λ(1405)

NUCLEAR REACTIONS ¹²C(K^-, π⁺), (K^-, π^-), E at rest; analyzed pion spectra; deduced Λ(1405) role, Pauli bocking effects.

doi: 10.1103/PhysRevC.56.2767
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1995IT06 Prog.Theor.Phys.(Kyoto) 94, 1019 (1995)

N.Itagaki, A.Ohnishi, K.Kato

Microscopic α-Cluster Model for ¹²C and ¹⁶O Based on Antisymmetrized Molecular Dynamics - Consistent Understanding of the Binding Energies of ¹²C and ¹⁶O -

NUCLEAR STRUCTURE ¹²C, ¹⁶O; calculated levels. Antisymmetrized molecular dynamics, microscopic α-cluster model.

doi: 10.1143/PTP.94.1019
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1995NA05 Nucl.Phys. A585, 325c (1995)

Y.Nara, A.Ohnishi, T.Harada

Application of Microscopic Dynamical Theory to Examination of Fragmentation of Highly Excited Hypernuclei

NUCLEAR REACTIONS ¹²C(π⁺, K⁺), E at 1050 MeV/c; calculated hyperfragments formation probabilities. Microscopic dynamical theory.

doi: 10.1016/0375-9474(94)00589-F
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1995NA06 Nucl.Phys. A585, 329c (1995)

Y.Nara, A.Ohnishi, T.Harada

Study of Hyperfragments Production in Stopped K^- Reaction within the Antisymmetrized Molecular Dynamics

NUCLEAR REACTIONS ¹²C(K^-, π^-), E at rest; calculated hyperfragment production, formation probability vs mass number. Antisymmetrized molecular dynamics model.

doi: 10.1016/0375-9474(94)00591-A
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1995NA08 Phys.Lett. 346B, 217 (1995)

Y.Nara, A.Ohnishi, T.Harada

Target Mass Dependence of ⁴H(Lambda) Formation Mechanism from K^- Absorption at Rest

NUCLEAR REACTIONS ¹⁶O, ¹²C, ⁹Be, ⁷Li(K^-, X), E=8-20 MeV; calculated ⁴H(lambda) hypernucleus formation probability.

doi: 10.1016/0370-2693(94)01684-5
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1994WI07 Z.Phys. A348, 153 (1994)

A.Wierling, B.G.Giraud, F.Mekideche, H.Horiuchi, T.Maruyama, A.Ohnishi, J.C.Lemm, A.Weiguny

Antisymmetrization of a Mean Field Calculation of the T-Matrix

doi: 10.1007/BF01291912
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1993ON01 Phys.Rev. C47, 2652 (1993)

A.Ono, H.Horiuchi, T.Maruyama, A.Ohnishi

Momentum Distribution of Fragments in Heavy-Ion Reactions: Dependence on the stochastic collision process

NUCLEAR REACTIONS ¹²C(¹²C, X), E=28.7 MeV/nucleon; analyzed σ(fragment E, θ), other data. Stochastic collision process, many body effects, antisymmetrized molecular dynamics model.

doi: 10.1103/PhysRevC.47.2652
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1992MA13 Phys.Rev. C45, 2355 (1992)

T.Maruyama, A.Ohnishi, H.Horiuchi

Evolution of Reaction Mechanisms in the Light Heavy-Ion System

NUCLEAR REACTIONS ¹⁶O(¹⁶O, X), E ≤ 200 MeV/nucleon; calculated fragment mass distribution vs E; deduced reaction mechanism evolution. ¹²C(¹⁴N, X), E=35 MeV/nucleon; calculated fragment production σ vs fragment mass. ¹²C(¹⁶O, X), E=25 MeV/nucleon; calculated σ(fragment θ, E) for X=p, d, t; deduced reaction mechanism clarifying conditions.

doi: 10.1103/PhysRevC.45.2355
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1992ON01 Phys.Rev.Lett. 68, 2898 (1992)

A.Ono, H.Horiuchi, T.Maruyama, A.Ohnishi

Fragment Formation Studied with Antisymmetrized Version of Molecular Dynamics with Two-Nucleon Collisions

NUCLEAR REACTIONS ¹²C(¹²C, X), E=28.7 MeV/nucleon; calculated fragment production σ vs fragment mass=2-14. Antisymmetrized molecular dynamics model, two-nucleon collisions.

doi: 10.1103/PhysRevLett.68.2898
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1992ON02 Prog.Theor.Phys.(Kyoto) 87, 1185 (1992)

A.Ono, H.Horiuchi, T.Maruyama, A.Ohnishi

Antisymmetrized Version of Molecular Dynamics with Two-Nucleon Collision and Its Application to Heavy Ion Reactions

NUCLEAR REACTIONS ¹²C(¹²C, X), E=28.7 MeV/nucleon; calculated fragment production σ vs mass for H, He, Li, Be, B, C, N isotopes. Molecular dynamics, antisymmetrization.

doi: 10.1143/ptp/87.5.1185
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1990MA32 Phys.Rev. C42, 386 (1990)

T.Maruyama, A.Ohnishi, H.Horiuchi

Quantum Molecular Dynamics Study of Fusion and Its Fade Out in the ¹⁶O + ¹⁶O System

NUCLEAR REACTIONS ¹⁶O(¹⁶O, X), E ≤ 220 MeV; calculated fusion probability, σ(E).

doi: 10.1103/PhysRevC.42.386
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