HARADA Toru

J-GLOBAL         Last updated: Nov 10, 2018 at 05:58
 
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Name
HARADA Toru
Affiliation
Osaka Electro-Communication University
Section
Faculty of Engineering, Research Center for Physics and Mathematics
Degree
(BLANK)(Hokkaido University)

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
2000
 - 
2001
Osaka Electro-Communication University,
 
1995
 - 
1999
Sapporo Gakuin University, Assistant Professor
 
1991
 - 
1994
Sapporo Gakuin University, Lecturer
 
1991
   
 
-
 
 
   
 
Assistant Professor
 

Education

 
 
 - 
1991
Graduate School, Division of Natural Science, Hokkaido University
 
 
 - 
1986
Faculty of Science, Hokkaido University
 

Published Papers

 
Harada Toru, Honda Ryotaro, Hirabayashi Yoshiharu
PHYSICAL REVIEW C   97(2)    Feb 2018   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
PHYSICAL REVIEW C   95(4)    Apr 2017   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
PHYSICS LETTERS B   740 312-316   Jan 2015   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
PHYSICAL REVIEW C   89(5)    May 2014   [Refereed]
Harada Toru, Hirabayashi Yoshiharu, Umeya Atsushi
NUCLEAR PHYSICS A   914 85-90   Sep 2013   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
FEW-BODY SYSTEMS   54(7-10) 1205-1209   Aug 2013   [Refereed]
Koike Takahisa, Harada Toru
FEW-BODY SYSTEMS   54(1-4) 117-122   Mar 2013   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
PHYSICAL REVIEW C   86(1)    Jul 2012   [Refereed]
Koike Takahisa, Harada Toru
HYPERFINE INTERACTIONS   210(1-3) 89-92   May 2012   [Refereed]
Umeya Atsushi, Harada Toru
PHYSICAL REVIEW C   83(3)    Mar 2011   [Refereed]
INTERNATIONAL NUCLEAR PHYSICS CONFERENCE 2010 (INPC2010): HADRONS IN NUCLEI   312    2011   [Refereed]
Harada Toru, Hirabayashi Yoshiharu, Umeya Atsushi
PHYSICS LETTERS B   690(4) 363-368   Jun 2010   [Refereed]
Harada Toru
NUCLEAR PHYSICS A   835(1-4) 136-143   Apr 2010   [Refereed]
Formation of the Essential Kaonic Nucleus, K(-)pp
Koike Takahisa, Harada Toru
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT   (186) 367-372   2010   [Refereed]
Koike Takahisa, Harada Toru
PHYSICAL REVIEW C   80(5)    Nov 2009   [Refereed]
Harada Toru, Hirabayashi Yoshiharu
NUCLEAR PHYSICS A   829(1-2) 100-125   Oct 2009   [Refereed]
Koike Takahisa, Harada Toru
HYPERFINE INTERACTIONS   193(1-3) 221-227   Sep 2009   [Refereed]
Koike Takahisa, Harada Toru
INTERNATIONAL JOURNAL OF MODERN PHYSICS A   24(11) 2126-2133   Apr 2009   [Refereed]
Koike Takahisa, Harada Toru
MODERN PHYSICS LETTERS A   24(11-13) 911-914   Apr 2009   [Refereed]
Koike Takahisa, Harada Toru
MODERN PHYSICS LETTERS A   23(27-30) 2540-2543   Sep 2008   [Refereed]
Koike Takahisa, Harada Toru
NUCLEAR PHYSICS A   804 231-273   May 2008   [Refereed]
Koike Takahisa, Harada Toru
PHYSICS LETTERS B   652(5-6) 262-268   Sep 2007   [Refereed]

Misc

 
原田 融
社会情報   25(1) 300-303   Feb 2017
Harada Toru, Hirabayashi Yoshiharu
Meeting Abstracts of the Physical Society of Japan   72(0) 322-322   2017
<p>J-PARC E10実験で行われた6Li(pi-,K+)反応による中性子過剰ハイパー核6_Lambda_Hの生成スペクトルを理論的に計算する。生成される6_Lambda_Hは1+状態であると予想され、スペクトルの理論解析から生成機構や構造を明らかにする。</p>
Fujioka Hiroyuki, Kanatsuki Shunsuke, Nagae Tomofumi, Nanamura Takuya, Harada Toru, Fukuda Tomokazu, Itahashi Kenta, Nishi Takahiro, Hiyama Emiko
Meeting Abstracts of the Physical Society of Japan   72(0) 240-240   2017
<p>中性子4個で構成されるテトラニュートロンの候補が、RIBFのSHARAQスペクトロメータを用いた実験で観測された。現状ではテトラニュートロンを理論的に説明することは困難であるが、実際に存在すれば3体力などに関する新しい知見をもたらすことが期待される。我々は、テトラニュートロンを生成する別の手法としてπ中間子の二重荷電交換反応に着目し、J-PARCにおいて探索実験ができないか検討を進めている。本講演では実験計画の概要を報告する。</p>
Tsubakihara Kohsuke, Ohnishi Akira, Harada Toru
Meeting Abstracts of the Physical Society of Japan   72(0) 211-211   2017
<p>核物質の対称エネルギーや非圧縮率は中性子星の最大質量という形で観測量に影響を与えうる。我々が整備してきた多体結合を含む相対論的平均場模型において、非圧縮率や対称エネルギーの調整を行い、その影響を定量的に議論する。</p>
原田 融, 濱田 恒生
Okiテクニカルレビュー   83(2) 34-37   Dec 2016
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   71(0)    2016
Toru Harada, Toru Harada, Yoshiharu Hirabayashi
Nuclear Physics A   934 8-17   Feb 2015
© 2014 Elsevier B.V. We theoretically investigate an inclusive π-spectrum of a He3(K-,π-) reaction at 870 MeV/c in a distorted-wave impulse approximation using the continuum discretized coupled channels (CDCC) method, in order to well describe the...
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   70(0)    2015
Tsubakihara K., Ohnishi A., Harada T.
Meeting Abstracts of the Physical Society of Japan   70(0)    2015
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   70(0)    2015
Umeya Atsushi, Motoba Toshio, Harada Toru
Meeting Abstracts of the Physical Society of Japan   70(0)    2015
Tsubakihara K., Ohnishi A., Harada T.
Meeting Abstracts of the Physical Society of Japan   70(0)    2015
Umeya Atsushi, Motoba Toshio, Harada Toru
Meeting Abstracts of the Physical Society of Japan   69(0)    2014
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   69(0)    2014
Tsubakihara K., Ohnishi A., Harada T.
Meeting Abstracts of the Physical Society of Japan   69(0)    2014
Umeya Atsushi, Motoba Toshio, Harada Toru
Meeting Abstracts of the Physical Society of Japan   68(0)    2013
Tsubakihara K., Ohnishi A., Harada T.
Meeting Abstracts of the Physical Society of Japan   68(0)    2013
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   68(0)    2013
Harada T., Hirabayashia Y.
Meeting Abstracts of the Physical Society of Japan   67(0)    2012
Umeya Atsushi, Motoba Toshio, Harada Toru
Meeting Abstracts of the Physical Society of Japan   67(0)    2012
Harada T., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   66(0)    2011
A. Umeya, T. Motoba, T. Harada
Hadron and Nuclear Physics 2009, HNP 2009   314-322   Dec 2010
As one of the typical sd-shell hypernuclei, the positive- And negative-parity energy levels of 20ΛNe have been calculated to investigate structures of low- lying states within the standard shell model. In addition to the conventional NN interactio...
A. Umeya, T. Harada
Proceedings of the Sendai International Symposium: Strangeness in Nuclear and Hadronic Systems, SENDAI 2008   416-417   Dec 2010
We investigate the structure of the neutron-rich 10ΛLi hypernucleus by using a shell-model calculation with a Λ-Σ coupling effect. The calculated Σ-mixing probability and energy shift in 10ΛLi are found to be about 0.34 % and 0.28 MeV which are co...
A. Umeya, T. Harada
Nuclear Physics A   835 426-429   Apr 2010
We investigate the structure of the Λ hypernucleiΛLi with A = 7 - 10 by using microscopic shell-model calculations including ΛN-ΣN coupling. It is found that the calculated energy shift due to Λ N - Σ N coupling increases with neutron number. © 20...
A. Umeya, T. Motoba, T. Harada
Hadron and Nuclear Physics 09: Osaka University, Japan, 16-19 November 2009   314-322   Jan 2010
© 2010 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. As one of the typical sd-shell hypernuclei, the positive- and negative-parity energy levels of 2iNe have been calculated to investigate structures of lowlying states within t...
A. Umeya, T. Harada
EPJ Web of Conferences   3    Jan 2010
© Owned by the authors, published by EDP Sciences, 2010. We systematically investigate the structures of the Λ hypernucleiΛLi with the mass number A = 7-10 in shell-model calculations considering the ΛN -ΣN coupling in the first-order perturbation...
Umeya A., Motoba T., Harada T.
Meeting Abstracts of the Physical Society of Japan   65(0)    2010
Harada T., Hirabayashi Y., Umeya A.
Meeting Abstracts of the Physical Society of Japan   65(0)    2010
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   65(0)    2010
Harada T., Hirabayashi Y., Umeya A.
Meeting Abstracts of the Physical Society of Japan   65(0)    2010
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   65(0)    2010
Takahisa Koike, Toru Harada
Modern Physics Letters A   24 911-914   Apr 2009
The formation of a deeply-bound K-pp state by the 3He(in-flight K-, n) reaction is investigated theoretically in a distorted-wave impulse approximation using the Green's function method. The expected inclusive and semi-exclusive spectra at p K- = ...
A. Umeya, T. Harada
Physical Review C - Nuclear Physics   79    Feb 2009
We investigate the structure of the neutron-rich Λ-hypernucleus Λ10Li by using microscopic shell-model calculations considering a Λ-Σ coupling effect. The calculated Σ-mixing probability in the Λ10Li ground state is found to be about 0.34% that is...
T. Harada, A. Umeya, Y. Hirabayashi
Physical Review C - Nuclear Physics   79    Jan 2009
We theoretically examine production of the neutron-rich Λ10Li hypernucleus by a double-charge exchange (π-, K+) reaction on a B10 target with distorted-wave impulse approximation calculations. We calculate the inclusive spectrum at the incident mo...
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   64(0)    2009
Harada T., Umeya A., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   64(0)    2009
Umeya A., Harada T.
Meeting Abstracts of the Physical Society of Japan   64(0)    2009
Takahisa Koike, Toru Harada
Modern Physics Letters A   23 2540-2543   Sep 2008
The formation of a deeply-bound K-pp state by the 3He(in-flight K-, n) reaction is investigated theoretically in a distorted-wave impulse approximation using the Green's function method. The expected inclusive and semi-exclusive spectra at p K- = ...
Umeya A., Harada T.
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Harada Toru
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Harada T., Umeya A., Hirabayashi Y.
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Umeya A., Harada T.
Meeting Abstracts of the Physical Society of Japan   63(0)    2008
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   62(0)    2007
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   62(0)    2007
Toru Harada, Yoshiharu Hirabayashi
Nuclear Physics A   767 206-217   Mar 2006
We investigate theoretically the ∑-hypernuclear production by the inclusive (π-,K+) reaction on a neutron-excess209Bi target in the framework of a distorted wave impulse approximation with an optimal Fermi-averaging for the elementary π-+ p → K++ ...
Harada Toru, Hirabayashi Yoshiharu
Meeting Abstracts of the Physical Society of Japan   61(0)    2006
Shirotori K., Motoba T., Tamura H., Ukai M., Koike T., Takahashi T., Harada Y., Hosomi K., Ma Yue, Mimori M.
Meeting Abstracts of the Physical Society of Japan   61(0)    2006
Koike Takahisa, Harada Toru
Meeting Abstracts of the Physical Society of Japan   61(0)    2006
Toru Harada, Yoshiharu Hirabayashi
Nuclear Physics A   759 143-169   Sep 2005
In order to examine whether the Σ-nucleus potential for Σ-atoms can explain the experimental (π-, K+) data or not, we evaluate Σ-hypernuclear production by the (π-, K+) reaction on a28Si target, in the framework of a distorted-wave impulse approxi...
T. Harada
Nuclear Physics A   754 86-90   May 2005
Density-dependent Hartree-Fock calculations for hypernuclei are performed on the basis of NN and ΛN effective interactions with a finite-range. We discuss the structure ofΛ17O andΛ5He and core-polarization effects arising from the addition of the ...
Toru Harada, Yoshiharu Hirabayashi
Nuclear Physics A   744 323-343   Nov 2004
In order to describe Λ quasi-free production spectra from (π+, K+) reactions, we propose an optimal Fermi-averaging for the elementary π++ n → K++ Λ t-matrix in a nucleus under the on-energy-shell condition. We calculate these quasi-free spectra f...
Harada Toru, Hirabayashi Yoshiharu
Meeting Abstracts of the Physical Society of Japan   59(0)    2004
Shoji Shinmura, Yoshinori Akaishi, Khin Swe Myint, Toru Harada
Modern Physics Letters A   18 128-130   Feb 2003
The Λ-∑0mixing in neutron star matter is discussed in three theoretical models: the G-matrix theory, the relativistic mean field theory and the QCD sum-rule approach. The mixing of 2∼8% at the critical baryon density of Λ appearance(2.3 times of t...
Coherent Λ-Σ0 Mixing in High-Density Neutron Matter (共著)
Journal of Physics G   28, L1-L7    2002
Hypernuclear Physics at JHF – Production and Spectroscopy
Proceeding of the 2nd Theory Workshop on JHF Nuclear Physics   26-35    2002
T. Harada
Nuclear Physics A   691 68-71   Aug 2001
The inclusive and exclusive spectra from4He(Κ-,π-) reactions are described within the distorted-wave impulse approximation. A coupled (3N-Λ)+(3N-Σ) calculation can explain consistently the available in-flight/at-rest data. We discuss the coherent ...
K. S. Myint, Y. Akaishi, T. Harada, S. Shinmura
Nuclear Physics A   684 592-594   Mar 2001
T. Harada
Nuclear Physics A   684 612-614   Mar 2001
Harada Toru
Meeting Abstracts of the Physical Society of Japan   56(0)    2001
The K--Helium Reactions at Rest
Nuclear Physics A   684, 612-614    2001
Lambda-Sigma Coupling Effect in Lambda Hypernuclei (共著)
Nuclear Physics A   684, 592-594    2001
Hypernuclear Production from K- Capture in Liquid Helium
Nuclear Physics   691, 68-71    2001
Toru Harada
Nuclear Physics A   672 181-219   Jun 2000
We examine phenomenologically the inclusive and exclusive4He(K-,π-) reactions from a stopped K-within a distorted-wave impulse approximation by using a coupled (3N-Λ)+(3N-Σ) model with a spreading potential. We discuss these spectra from various a...
Y. Akaishi, T. Harada, S. Shinmura, Khin Swe Myint, Khin Swe Myint
Physical Review Letters   84(16) 3539-3541   Jan 2000
It is found that the suppression due to two-body ∧N-ΣN coupling solves the overbinding problem in 5∧ He but it, in turn, causes a severe underbinding in the four-body systems. The shortage of this binding is overcome by introducing explicitly the ...
4He(K-, π-)Spectra and the┣D34(/)Σ┫D3He Bound State
┣DBFew-Body Systems, Supplment(/)-┫DB   12 378-382   2000
Neutron Rich Lambda Hypernuclei(共著)
┣DBFew-Body Systems, Supplment(/)-┫DB   12 383-386   2000
Yuichi HIRATA, Yasushi NARA, Akira OHNISHI, Toru HARADA, Jφrgen RANDRUP, Division of Physics Graduate School of Science Hokkaido University, Advanced Science Research Center Japan Atomic Energy Research Institute, Division of Physics Graduate School of Science Hokkaido University, Department of Social Information Sapporo Gakuin University, Nuclear Science Division 70A-3307 Lawrence Berkeley National Laboratory
Progress of Theoretical Physics   102(1) 89-119   Jul 1999
Formation mechanisms of single, twin and double hypernuclei from Ξ^- absorption at rest on ^<12>C are investigated with a refined microscopic transport model that incorporates the recently developd quantal Langevin treatment into antisymmetrized m...
Σ Excitaion in Nuclei and its Decay
┣DBProceedings of the APCTP Workshop on Strangeness Nuclear Physics(SNP'99)(/)-┫DB   142-147   1999
Few-body Hypernuclear Systems with ┣DBS(/)-┫DB=-1 and ┣DBS(/)-┫DB=-2 Sector(共著)
┣DBProceedings of the APCTP Workshop on Strangeness Nuclear Physics(SNP'99)(/)-┫DB   28-36   1999
Y. Hirata, Y. Nara, A. Ohnishi, T. Harada, J. Randrup
Nuclear Physics A   639    Aug 1998
Toru Harada
Nuclear Physics A   639 185c-188c   Aug 1998
Nagae Tomofumi, Harada Toru
Butsuri   53(4) 274-278   Apr 1998
1980年以来, シグマハイパー核の研究者たちは, "狭い幅の問題"と"束縛状態の存否の問題"という二つのパズルに悩まされてきた. 最近になって米国ブルックヘブン研究所で得られた高統計の二つの実験データは, これらのパズルに対する実験的な答えを出すに至った. ここでは, これらのデータの意味するところを理論的解釈を含めて解説し, 明らかになったシグマハイパー核の存在形態に関する現在の認識を紹介する.
Toru Harada
Nuclear Physics A   631 771-775   Mar 1998
We report phenomenological study of the4He(in-flight K-,π∓) data at BNL, in order to clarify the structure of4ΣHe (Jπ=0+, T≃1/2) which was predicted theoretically as a Σ-hypernuclear bound state. The π∓ spectrum is calculated in the DWIA framework...
A. Ohnishi, Jørgen Randrup, Y. Hirata, N. Otuka, Y. Nara, T. Harada
Nuclear Physics A   630 223-230   Feb 1998
The effects of quantum fluctuations on various fragmentation reactions, from the production of intermediate mass fragments in Au+Au collisions to atomic cluster formation, are studied by using the recently developed Quantal Langevin model. The lar...
Toru Harada
Physical Review Letters   81(24) 5287-5290   Jan 1998
We examine phenomenologically the 4He(in - flight K-,π-) spectrum at pK-=600MeV/c and ?Kπ=4° within distorted-wave impulse approximation calculations by using a coupled (3N-Λ)+(3N-Σ) model. The result shows that there exists a pole of the 4SHe uns...
HARADA Toru
Meeting Abstracts of the Physical Society of Japan   53(0)    1998
HIRATA Y., OHNISHI A., NARA Y., HARADA T., RANDRUP J.
Meeting Abstracts of the Physical Society of Japan   53(0)    1998
HARADA Toru
Meeting Abstracts of the Physical Society of Japan   53(0)    1998
Theoretical Analysis of the 4He(K-, π(]G4922[))Spectrum
Nuclear Physics A   631 771c-775c   1998
Formation of twin and double hypernuclei from Ξ- absorption at rest on 12C(共著)
Nuclear Physics A   638 389c-392c   1998
Effects of Quantum Fluctuations in Antisymmetrized Molecular Dynamics(共著)
Proceedings of the (]G0010[)(]G0007[) RCNP International Symposium on Innovative Computational Methods in Nuclear Many-Body Problems-Towards a new generation of physics in finite quatntum systems-   475-477   1998
Existence of the Σ-Hypernucleus(共著)
53(4) 274-278   1998
Y. Naraa, A. Ohnishi, A. Ohnishi, T. Harada, A. Engel
Nuclear Physics A   614 433-460   Mar 1997
In the framework of intranuclear cascade (INC) type calculations, we study the momentum spectrum in the reactions (K-, K+) at a beam momentum of 1.65 GeV/c. The INC model calculations are compared with the relativistic impulse approximation (RIA) ...
Hirata Y., Nara Y., Ohnishi A., Harada T., Randrup J.
Meeting Abstracts of the Physical Society of Japan   52(0)    1997
Hirata Y., Nara Y., Ohnishi A, Harada T.
Meeting Abstracts of the Physical Society of Japan   52(0)    1997
Koike Yoshimitsu, Harada Toru
Meeting Abstracts of the Physical Society of Japan   52(0)    1997
Study of(K-, K+)Reactions within the Quantum Molecular Dynamics Approach(共著)
Proceedings of the 25th INS International Symposium on Nuclear and Particle Physics with High-Intensity Proton Accelerators   324-329   1997
Yoshimitsu H. Koike, Toru Harada, Toru Harada
Nuclear Physics A   611(4) 461-483   Dec 1996
The structure of A = 3 Σ-hypernuclei is investigated on the basis of a central two-body ΣN interaction. We perform a three-body coupled-channel calculation by using the coupled-rearrangement-channel variational method. The results suggest that the...
Toru HARADA, Yoshinori AKAISHI, Department of Social Information Sapporo Gakuin University:Institute of Socio-Information and Communication Studies (ISICS) University of Tokyo, Institute for Nuclear Study (INS) University of Tokyo
Progress of theoretical physics = Progress of theoretical physics   96(1) 145-178   Jul 1996
Σ-hypernuclear productions by in-flight (K^-,π^-), (K~-,π^0) and (K^-,π^+) reactions on the 4^H target at p_K&sime;400-800 MeV/c are investigated theoretically in the DWIA framework by Green's function treatment with a complex nucleus-Σ potential ...
T. Koike, T. Harada, Y. Akaishi
Physical Review C   53 79-87   Jan 1996
X-ray yields of K--p and K--d atoms are calculated as a function of the target density in order to find an optimum condition for experiments. The dependence of the yields on the energy level shift and absorption width due to the strong interaction...
Toru Harada, Yoshinori Akaishi
Progress of Theoretical Physics   96(1) 145-178   Jan 1996
Σ-hypernuclear productions by in-flight (K-, π-), (K-, π0) and (K-, π+) reactions on the4He target at pK≃-400-800 MeV/c are investigated theoretically in the DWIA framework by Green's function treatment with a complex nucleus-Σ potential derived f...
Harada T., Okabe S., Kitagawa H.
Meeting Abstracts of the Physical Society of Japan   1996(0)    1996
Koike Y.H., Harada T.
Meeting Abstracts of the Physical Society of Japan   1996(0)    1996
Koike T., Akaishi Y., Harada T.
Meeting Abstracts of the Physical Society of Japan   1996(0)    1996
Nara Y., Ohnishi A., Harada T., Shinmura S.
Meeting Abstracts of the Physical Society of Japan   1996(0)    1996
Hirata Y., Nara Y., Ohnishi A., Harada T.
Meeting Abstracts of the Physical Society of Japan   1996(0)    1996

Works

 
Theoretical studies of strangeness nuclear physics
1996 - 1998
Nuclear fragmentation from multi-strange matter
1995 - 1997
Molecular structure of light strange-nuclear states
2001

Research Grants & Projects

 
Strangeness Nuclear Physics