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Theoretical research on S-wave meson-2 nucleon 3 body systems

Research Project

Project/Area Number 06640402
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionEhime University

Principal Investigator

UEDA Tamotsu  Ehime University, Physics Dept., Professor, 理学部, 教授 (40029492)

Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordspiNN dynamics / dibaryon / nucleon-nucleon interaction / few-body system / meson production / protor-deuteron reaction / Faddeev equation / pion-deuteron interaction / ファデイ-エフ方程式 / 中間-核子-核子力学 / フアデイ-エフ方程式
Research Abstract

The purpose of this research is to make clear the mechanisms for the scatterings and the reactions of the piNN and etaNN systems on a unified way based on the Faddeev formalism and to find characteristic phenomena such as dibaryons in these systems. Especially the phenomena which concern the S wave mesons are important subject.
The piN interaction for input is represented in a separable form by use of phase-shift analysis results. On the other hand the NN interction is represented also in a separable form in an offshell equivalent way with Ueda-Green OBEP.Furthermore the piN-pN coupling, piDELTA*N vertex and the offshell freedom of the piN P_<33> interaction are taken into account. Faddeev equation is solved with these elements input. The processes of pp-pp, np-np, pp-pid, pid-pid, and pp-pnpi^+ are described in a unified way in quantitative consistence with experiment. A structure due tothe S wave pion is found near pion threshold in I=1, J^P=0^- channel.
The Pauli principle forbids the NN state of I=0, J^P=0^- channel. Therefore, if a resonance exists in the piNN system in this channel, its decay width may be narrow. Near pion threshold we calculated the amplitude for piNN*piNN process in this channel. A resonance with such a narrow width as 30 MeV is found. This state is generated by S wave pion. On the other hand in piNN-etaNN system quasi bound state is generated due to S wave eta-meson near its threshold in I=0, J^P=1^- channel.

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (65 results)

All Other

All Publications (65 results)

  • [Publications] T.Ueda and Y.Ikegami: "Separable representation of πN scattering amplitude" Progress of Theoretical Physics. 91. 85-104 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda 他: "New splyne interpolation for physics and some application including nucleon-nucleon scattering phase shifts" Computer physics communications. 81. 163-172 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda: "Three-body dynamics on pp→pp and pp→pnπ^+ process below 1 GeV" Nuclear Physics. A573. 511-540 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Itonaga,T.Ueda他: "A New ΛN→NN weak potential and the hypernuclear nonmesonic decay" Nuclear Physics. A577. 301C-306C (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "Three-body dynamics on pp→pp,pp→πd and πd→πd processes below 1 GeV" Few-body systems. 18. 133-146 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Itonaga,T.Ueda他: "A Role of 2π/σ Exchange in the ΛN→NN weak potential and the nonmesonic decay of Light Λ Hypernuclei" Nuclear physics. A585. 331C-332C (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "πNN Dynamics on NN-NN,pp-πd,πd-πd and pp-πNN below 1GeV" Few-Body System Suppl.9. 177-186 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "Physics on πNN and nNN Systems" πN News letters. 10. 109-114 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "A separable Representation of the NN One-Boson-Exchange Potential and the Effect of the ISO potential" Progress of Theoretical Physics. 95. 115-141 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hiroshige,T.Ueda他: "On the np→d(ππ)_o Reaction at PL=1.46 and 1.9 Gev/c" Progress of Theoretical physics. 95. 353-360 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Yoshino,T.Ueda他: "Neutron-Proton Phase Shifts between 500 and 1090MeV" Progress of Theoretical Physics. 95. 577-597 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda: "Meson Production in baryon number=2 systems" Acta Physica Polonica,suppl.B27. 2875-2878 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda,他: "ΛN and ΛΛ Interactions in An OBE Model and Hypernuclei" 原子核研究. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "Nucleon-nucleon one-boson-exchange potential in Geinesville" Deepak publishing, 220 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "Nuclear and Particle Physics with Meson Beams" Universal Academy Press,Inc., 512 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "Nuclear and Particle physics with High Intensity proton Accelerators" World Scientific publishing Co.,Singapore(印刷中), (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda他: "High Energy Spin Physics'96" Kobe University(印刷中), (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda and Y.Ikegami: "Separable representation of piN scattering amplitude" Progress of Theoretical Physics. 91. 85-104 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda and K.Tominaga: "New splyne interpolation for physics and some application including nucleon-nucleon scattering phase shifts" Computer physics communications. 81. 163-172 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda: "Three-body dynamics on pp*pp and pp*pnpi^+ process below 1 GeV" Nuclear Physics. A573. 511-540 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Itonaga, T.Ueda et.al: "A New *N*NN weak potential and the Hypernuclear nonmesonic decay" Nuclear Physics. A577. 301C-306C (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al: "Three-body dynamics on pp*pp, pp*pid, and pid*pid processes below 1 GeV" Few-body systems. 18. 133-146 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Itonaga, T.Ueda et.al.: "A Role of 2pi/sigma Exchange in the *N*NN weak potential and the nonmesonic dacay of Light * Hypernuclei" Nuclear Physics. A585. 331C-332C (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: "piNN Dynamics on NN-NN,pp-pid, pid-pid and pp-piNN below 1 GeV" Few-Body Systems Suppl. 9. 177-186 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: "Physics on piNN and etaNN systems" piN Newsletters. 10. 109-114 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: "A Separable Representation of the NN One-Boson-Exchange Potential and the Effect of the ^1So Potential" Progress of Theoretical Physics. 95. 115-141 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Hiroshige, T.Ueda et.al.: "On the np*d (pipi)゚ Reaction at P_L=1.46 and 1.9 GeV/c" Progress of Theoretical Physics. 95. 353-360 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] H.Yoshino, T.Ueda et.al: "Neutron-Proton Phase Shifts between 500 and 1090 MeV" Progress of Theoretical Physics. 95. 577-597

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda: "Meson production in baryon number=2 systems" Acta Physica Polonica, Suppl.B27. 2875-2878 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: "*N and ** Interactions in An OBE Model and Hypernuclei" Gensikaku-kenkyu. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: Deepak publishing. Nucleon-nucleon one-boson-exchange Potential in Gainesville, 1-220 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda, et.al.: Universal Academy Press, Inc.Nuclear and Particle Physics with meson Beams, 1-512 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: World Scientific Publishing Co.Singapore (in press). Nuclear and Particle Physics with High Intensity proton Accelerators, (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda et.al.: Kobe University (in press). High Energy Spin Physics '96, (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Ueda and Y.Ikegami: "Separable representation of πN Scattering amplitude" Progress of Theoretical Physics. 91. 85-104 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda 他: "New splyne interpolation for physics and some application including nucleon-nnucleon scattering phase shifts" Computer physics communication. 81. 163-172 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda: "Three-body dynamics on PP→PP and PP・→Pnπ^+ Process below 1 GeV" Nudear Physics. A573. 511-540 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Itonaga, T. Ueda他: "A New ΛN→NN weak potential and the hypernudear nonmesonic decay" Nuclear Physics. A577. 301c-306c (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "Three-body dynamics on PP→PP, PP→πd and πd→πd processes belour 1 GeV" Few-body systems. 18. 133-146 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Itonaga,T.Ueda他: "A Role of 2π/σ Exchange in the ΛN→NN weak potential and the nonmeconic decay of Light Λ Hypernuclei" Nuclear Physics. A585. 331c-332c (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "πNN Dynamics on NN-NN,pp-πd-πd and pp-πNN below 1 GeV" Few-Body Systems Suppl.9. 177-186 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "Physics on πNN and ηNN Systems" πN Newstters. 10. 109-114 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "A Separble Representation of the NN One-Boson-Exchange Potential and the Effect of the 1So Potential" Progress of Theoretical Physics. 95. 115-141 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Hiroshige,T.Ueda他: "On the np→d(ππ)^o Reaction at PL-1.46 and 1.9 GeV/c" Progress of Theoretical Physics. 95. 353-360 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Yoshino,T.Ueda他: "Neutron-Proton Phase Shifts between 500 and 1090 MeV" Progress of Theoretical Physics. 95. 577-597 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda: "Meson Production in baryon number=2 systems" Acta Physica Polonica,suppl.B27. 2875-2878 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda,他: "ΛN and ΛΛ Interactions in An OBE Model and Hypernuclei" 原子核研究. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "Nucleon-nucleon one-boson-exchange potential in Geinesville" Deepak publishing, 220 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "Nuclear and Particle Physics with Meson Beams" Universal Academy Press, Jnc., 512 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "Nulear and Particle Physics with High Intensity proton Accelerators" Wold Scientific publishing Co.,Singapore(印刷中), (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda他: "High Energy Spin Physics '96" Kobe University(印刷中), (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ueda,Y,Ikegami and K.Tada: "Three-body dynamics on pp-pp,pp-πd and πd-πd processes below 1GeV" Few-body systems. 18. 133-146 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Ueda,Y,Ikegami,K.Tada and K.Kameyama: "πNN Dynamics on NN-NN,pp-πd,πd-πd and pp-πNN below 1GeV" Few-body systems Suppl.9. 177-186 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Ueda,K.Tada and K.Kameyama: "Physics on πNN and ηNN Systems" πN Newsletters. 10. 109-114 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Ueda,K.Tada and K.Kameyama: "A Separable Representation of the NN One-Boson-Exchange Potential and the Effect of the ^1So Potential on J^P=O^- πNN System" Progress of Theoretical Physics. 95. 115-141 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Hiroshige,H.Yoshino,J.Nagata,M.Matsuda,& T.Ueda: "Sigma Meson Production Model for ηp→d(ππ)^O Reaction at P_L=1.46 and 1.9GeV/c" Progress of Theoretical Physics. 95(未定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Yoshino,J.Nagata,Y.Yoshino,M.Matsuda,N.Hiroshige,T.Ueda: "Neutron-Proton Phase Shifts between 500 and 1090 MeV" Progress of Theoretical Physics. 95(未定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Ueda 他: "Nuclear and Particle Physics with Meson Beams in the 1 GeV/c Region" Universal Academy Press, 512 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Ueda and Y.Ikegami: "Separable representation of πN scattering amplitudes" Progness of Theoretical Physics. 91. 85-104 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ueda,K.Tominaga and Y.Ikegami: "New splyne interpolation for physics and some applications including nucleon-nucleon scattering phase shifts" Camputer physics communications. 81. 163-172 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ueda: "Three-body dynamics on pp→pp and pp→pnπ^+ processes below 1 GeV" Nuclear physics. A573. 511-540 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Itonaga,T.Ueda and T.Motoba: "A new ΛN→NN weak potential and the hypernuclear nonmesonic decay" Nuclear physics. A577. 301c-306c (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ueda Y.Ikegami and K.Tada: "Three-body dynamics on pp→pp,pp→πd,and πd→πd processes below 1 GeV" Few-body systems. (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ueda ほか: "SPIN 94" Indiana University, 355 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ueda ほか: "ALEX GREEN FESTSCHRIFT" Deepak publishing, 220 (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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