Few Particle Problems

in the Nuclear Interaction

1st Edition - January 1, 1972
Editor: Ivo Slaus
Language: English
eBook ISBN:
9 7 8 - 0 - 4 4 4 - 6 0 1 1 2 - 4

Few Particle Problems in the Nuclear Interaction emerged from the International Conference on Few Particle Problems in the Nuclear Interaction held in Los Angeles, from August… Read more

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Few Particle Problems in the Nuclear Interaction emerged from the International Conference on Few Particle Problems in the Nuclear Interaction held in Los Angeles, from August 28-September 1, 1972. The aim of the conference was to discuss recent developments in low and medium energy few-particle problems. This included the fields of the nuclear three-body problem; nuclear forces (in particular, three-body forces); symmetries; and the interaction of mesons, leptons, and photons with few-nucleon systems. Special sessions were also devoted to the application of the results and techniques of the few-particle research to the problems of other fields, in particular nuclear structure and astrophysics. The conference was organized into nine plenary sessions and 13 parallel sessions. This volume contains 184 papers presented during the nine sessions on the following topics: the nucleon-nucleon interaction; three-body forces; hypernuclear systems; symmetries; three-body problems; multiparticle reactions; proposed studies of few-nucleon systems with meson factories; few-nucleon systems and leptons, mesons, and photons; and applications.

Preface

List of Papers Contributed to each Session

Session I: The Nucleon-Nucleon Interaction

    Session la: Off-Energy-Shell Interaction

    Session lb: Nucleon-Nucleon Interaction

Session II: Three-Body Forces

Session III: Hypernuclear Systems

Session IV: Symmetries

Session V: Three-Body Problems

    Session Va: Three-Body Problems - Theory

    Session Vaa: Three-Body Theory - Computational Methods

    Session Vb: Three-Body Problems - Bound State

    Session Vc: Three-Nucleon Systems - Elastic Scattering and Polarization

    Session Vd: Deuteron Breakup

    Session Ve: Three-Body Resonances

Session VI: Multiparticle Reactions

    Session VIa: Four-Nucleon Systems

    Session VIb: Multiparticle Reactions

Session VII: Proposed Studies of Few-Nucleon Systems with Meson Factories

Session VIII: Few-Nucleon Systems and Leptons, Mesons, and Photons

    Session Villa: Interactions of Leptons, Mesons, and Photons with Few-Nucleon Systems

Session IX: Applications

    Session IXa: Nuclear Structure

Contributor Index

List of Participants

Session I: The Nucleon-Nucleon Interaction

    (Invited Talk) The Nucleon-Nucleon Interaction

    Small Angle p-p Elastic Scattering at Energies Between 290 and 450 MeV

    On a Coherent Non-Local Separable N-N Interaction

    Nucleon-Nucleon Interaction with Yamaguchi Form Factors

    A New Approach to Calculating the Nuclear Force

    Combined NN and YN Analysis with Potential Models

    The Polarization Structure of Reactions with Four Spin-1/2 Particles

    Relative Cross Section in p-p Scattering at 4.21 MeV Obtained with a New Method

    Session la: Off-Energy-Shell Interaction

         Energy Dependence of Proton-Alpha Bremsstrahlung

         The Half-Shell T-Matrix for the Sum of Two Potentials

         Bremsstrahlung in the 3He-α Interaction

         Asymmetric Neutron-Proton Bremsstrahlung at 130 MeV

         Non-Coplanar Effects in Neutron-Proton Bremsstrahlung

         Evidence for Large Off-Shell Effects in n-p Bremsstrahlung at 130 MeV

         α-α BremsStrahlung at 9.35 MeV

         Study of ‘Off Shell’ Effects in p-p Bremsstrahlung and D(p,2p)n Experiments at 156 Mev

         Wave Function Models of the Two-Nucleon T-Matrix off the Energy Shell

         Off-Energy-Shell Continuation of the S0 Two-Nucleon Transition Matrix

         Coulomb Effects in the Near-On-Shell Nucleon-Nucleon T-Matrix

         Predictions for Pion-Nucleon Bremsstrahlung

         Bremsstrahlung Emission in Nuclear Scattering

    Session lb: Nucleon-Nucleon Interaction

         Neutron-Neutron Final State Interaction in the Reaction D(n,2n)p

         Nucleon-Nucleon Scattering Lengths from Incomplete Nucleon-Deuteron Breakup Experiments

         A Determination of the Neutron-Neutron Scattering Length from a Kinematically Complete Experiment on the D(n,np)n Reaction at 130 MeV

         Final Results of a Measurement of ann from the Reaction π-d→2nγ

         On the Validity of the Impulse Approximation for the D(n,p)2n Reaction at 14 MeV

         Neutron-Neutron Scattering Parameters from an Analysis of the Reaction N+D→N+N+P by an Exact Three Body Calculation

Session II: Three-Body Forces

    (Invited Talk) Three Body Forces

    (Invited Talk) Three Body Forces

    Evidence for a Strong Three-Body Force in the Triton

Session III: Hypernuclear Systems

    (Invited Talk) Few Particle Problems in Hypernuclear Physics

    Excited States of Hypernuclei

    Λ-∑ Coupling and Core Effects in the Light Hypernuclei

Session IV: Symmetries

    (Invited Talk) Some Experimental Aspects of Symmetries

    (Invited Talk) Symmetries: Some Recent Theoretical Work

    Reciprocity Relations in Pion Photoproduction from 3He and 3H and the ∆I≤1 Rule

    Weak Interaction and Parity Violation in Polarized Proton-Proton Scattering

Session V: Three-Body Problems

    (Invited Talk) The Three-Body Problem

    (Invited Talk) Some Aspects of the Three Nucleon Problem

    Systematical Multiparticle Theory and its Application to the Four-Nucleon Problem

    Comments on Some 3-Nucleon Reactions

    Perturbative Calculation of Spin Observables in Elastic Nucleon-Deuteron Scattering

    Session Va: Three-Body Problems - Theory

         Quasiparticle Calculations for the Three-Nucleon System

         Studies of the Resonance Phenomena by an Exactly Soluble Three-Body Model

         Break-up Reactions in a Three-Particle Model

         Deuteron Break Up with Separable Potentials

         N-d Scattering with Local Potentials Below Breakup Threshold

         An Alternative Set of Operators for Three-Particle Scattering

         Comparison of the Amado Model to Simple Models for the Reaction D(p,2p)n at 30.3 MeV

         Forward D(p,2p)n Reaction at 51.8 MeV

         Spurious States and How to Get Rid of Them

         Coulomb Effects in Proton-Induced Deuteron-Breakup Reaction

         On the Adequacy of the Unitary Pole Expansion

    Session Vaa: Computational Methods in Three-Body Problems

         Binding Energies of Triton and Alpha-Particle with Meson-Theoretical Potentials

         Comments on the Unitary Pole Expansion for the Malfliet-Tjon I and III Potentials

         Some Methods of Solving the Three-Body Problem at Positive Energy

         Variational Approach to Breakup Calculations in the Amado Model

         Application of the Hyperspherical Function Method to the Calculation of the Triton Binding Energy with Realistic Two-Nucleon Potentials

         Exact-Unitary Model Calculations of Three-Particle Scattering

         Elastic Neutron-Deuteron Scattering with Local Potentials

         Breakup Calculations in Neutron-Deuteron Scattering with Local Potentials

         Neutron-Deuteron Elastic Scattering Above the Breakup Threshold

         Separable Approximation of the Amado-Lovelace Kernel

         Non-Convergence of Resonating Group Method with Approximate Channel Functions

         Numerical Comparison of Faddeev and Resonating Group Method

    Session Vb: Three-Body Problems - Bound State

         Nearly Separable Potentials in the Triton

         Capability of the Hyperspherical Expansion Method for Solving the Trinucleon Bound States

         Comparison of the Sensitivity of the Binding Energies of the Triton and of Nuclear Matter to the High Energy Phase Shift

         3He-3H Energy Difference and Isospin Impurities

         Some Off-Shell Effects in Triton Calculations

         The 1/2+ Three Nucleon States for Realistic Local Potentials Below the Breakup Threshold

         Form Factor of 3He with the Hamada-Johnston Potential

         On the Bound State of Three-Alpha System

         The Off-Energy-Shell Nucleon-Nucleon T-Matrix and Properties of 3H and 3He

         Meson Exchange Contributions to 3H Beta Decay and 3H, 3He Magnetic Moments

         Non-Variational Calculation of the Triton Binding Energy with Hard-Core Spin-Dependent Local Potentials

         Three-Nucleon Ground State Properties for Realistic Local and Non-local Nucleon-Nucleon Interactions

         Bounds on the Off-Shell Variation of the Triton Binding Energy for Phase-Equivalent Potentials of Rank-Two

         Ground State Observables of 3He and 3H

         Sensitivity of 3H and 3He Properties on Low-Energy Nucleon-Nucleon Scattering Parameters, Using a Delta-Shell Potential

    Session Vc: Three Nucleon Systems-Elastic Scattering and Polarization

         Measurement of the Differential Cross Section for n-d Elastic Scattering at 128 MeV

         Vector to Tensor Polarization Transfer in Proton-Deuteron Elastic Scattering

         An Analysis of Nucleon-Deuteron Scattering Leading to a Measurement of the Deuteron’s D-State Percentage

         Phase Shift Analysis of p-d Elastic Scattering

         Differential Cross Section for the Elastic Scattering of 14.1 MeV Neutrons by Deuterons

    Session Vd: Deuteron Breakup

         Proton Total Reaction Cross Section Measurements for Deuterium in the Energy Range 20-50 MeV

         Investigation of the n-p FSI in the Deuteron Break Up Reaction

         D(p,2p)n and D(p,pn)p Reactions at 156 MeV

         The D(α,αp)n Reaction at 165 MeV

         Coplanar and Non-coplanar Proton Correlations from the d(p,2p)n Reaction at 10.0 MeV

         Deuteron Breakup in the Fields of Heavy Nuclei

         Analysis of D(α,αp)n Reaction

         Proton Induced Deuteron Breakup

         Dalitz Plots in p-d Breakup

         Destructive Interference Effects in D(p,2p)n at Ep=39.5 MeV

         A Study of the Reaction p(d,pp)n

    Session Ve: Three-Body Resonances

         A Possible Excited State of the Three-Nucleon System in a Phase-Shift Analysis of Nucleon-Deuteron Scattering

         On the Existance of Virtual and Excited States in Three Baryon System

         Study of the 2H(p,γ)3He Capture Reaction in the Range Ep=10-17.5 MeV

         Radiative Capture of Protons by Deuterium

         The D(p,2p)n Reaction at 3.8 to 5.0 MeV

         Some Aspects of the Search for 3N Resonances

         Three-Body Resonance

         Phase Shift Analysis of Elastic Proton-Deuteron Scattering at Intermediate Energies and Possible Excited States in 3He

Session VI: Multiparticle Reactions

    (Invited Talk) Graph Summation Method for Multiparticle Nuclear Reactions

    (Invited Talk) Polarization Experiments and Few Nucleon Systems

    (Invited Talk) Nuclear Wave Functions from Particle Transfer Data

    Session Via: Four Nucleon Systems

         The Cross Section for 2H(d,dp)n Away from Major Enhancements

         Quasielastic Deuteron-Proton Scattering in the Reaction d(d,dp)n at Ed=52.3 MeV

         The 3He(p,pd)p Reaction at 65 MeV

         Comparison of the +3H and +3He Elastic Scatterings at 19 and 30 MeV

         Asymmetry Measurements in the Elastic Scattering of Polarized Deuterons by H and 4He Between 20 and 30 MeV

         Role of the Simple Mechanisms in the Proton Induced Breakup of 3He and 3H

         Quasifree p-d and Quasifree p-p on 3He at 156 MeV

         Electric Dipole Radiation in 4He Observed with the Polarized Proton Capture Reaction

         Investigation of Excited States of 4He Via the D(d,d)D and the D(d,p)T Reactions Using a Polarized Deuteron Beam

         Scattering States of the 4He System

         A Calculation for Polarization Values of Elastic p-3He Scattering

         Tests of 3He Wave-functions Via the 3He(p,2p)d and 3He(p,2p)d* Reactions

         Treiman-Yang Test for D+D→D+P+N

         A Study of the 3He(p,2p)d and 3He(p,2p)pn Reactions at 45.0 MeV

         Accurate Deuteron-Deuteron Elastic Scattering Cross Sections

         Theory of the Four-Particle System with Pairlnteractions

         Nuclear Spectroscopy in 4He with Two Particle Reactions

         The Deuteron-Exchange Pole in p-3He Scattering

         The (p,2p) Reaction on d, He3, and He4 at 65 MeV

         Preliminary Measurements of Polarization Transfer in 4He()4He Elastic Scattering

         Experimental tests on the Purity of Nucleon-Nucleon 1S0, Final-State Interaction

         Angular Distributions for the Reactions 3He + p→d + (pp) and 3He + p→p + (pd)

         Optical Model Analysis of Neutron-Tritium Scattering

    Session VIb: Multiparticle Reactions

         Multiparticle Breakup Reactions on Some Light Nuclei Induced by 14.4 MeV Neutrons

         Quasifree Processes in the Reactions 3H+3He, 2He+3H and 2H+ H

         Odd-Even Features in the Effective Interaction Between Light Nuclei

         Energy Dependence of p-n Proximity Scattering

         Significance of the New Three-Body Break-up Mechanism Found in the Study of the 7Li(p,2d)4He Reaction

         Proximity Scattering Really Exists

         Final State Interaction Calculation of the Angular Correlation of the Jπ,=2- Level of 4He

         A p-d Final State Coulomb Interaction from 2H(α,dt)1H with Eα=70 MeV

         Quasifree Proton-Proton Scattering in He

         A Comparison of p,2p and p,pn Knockout from 6Li

         Analyzing Powers in the 3He(,p)4He Reaction at Energies Less Than 1.0 MeV

         Scattering of Deuterons by 3He

         Three-Body Reactions Studied with "BOL"

         The 3He(t,d)4He Reaction at Low Energies: Strongly Energy Dependent Deviations from the Barshay-Temmer Symmetry

Session VII: Proposed Studies of Few Nucleon Systems with Meson Factories

    (Invited Talk) Proposed Studies in Few Nucleon Research with the TRIUMF Cyclotron

    (Invited Talk) State of the Experimental Program at SIN

    (Invited Talk) Research on Few Particle Systems at LAMPF

Session VIII: Few Nucleon Systems and Leptons, Mesons, and Photons

    (Invited Talk) Mesic Interactions in Very Light Nuclei

    (Invited Talk) Weak Interaction of Leptons with Few-Nucleon Systems-Meson and Nucleon-Isobar Effects

    (Invited Talk) Electron Scattering and Few Nucleon Systems

    Session Villa: Interactions of Leptons and Mesons with Few Nucleon Systems

         Faddeev Approach to Pion Production

         Two-Body Photodisintegration Cross Sections of 3He and 4He in the Region of ∆(1236)

         Anomaly in the 4He(γ,pπ-) Reaction Around the ∆(1236) Resonance

         The 3-3 Resonance in the Pion Photoproduction 3He(γ,π+)3H

         Photon Spectra from Pion Absorption on 3He and 6Li

         Neutrino-Deuteron Interaction Cross Sections at LAMPF Energies

         Preliminary Results of the Measurement of the (π+,4He) Interaction at US and 150 MeV

         Photoneutron Angular Distribution for 4He

         Measurement of the Spectrum of Backward Photons from Radiative Pion-Proton Scattering at 260 and 295 MeV

         Negative Pion Capture in Helium

         Absorption of S-Wave Pions by 6Li

         Muon Capture in Deuterium in the Elementary Particle Treatment

         Neutrino Disintegration of the Deuteron

         Sign of the T=3/2 ∑N Amplitude from ∑-d Scattering

Session IX: Applications

    (Invited Talk) Few Nucleon Systems: Applications

    (Invited Talk) Few Nucleon Problems in Astrophysics

    Session IXa: Nuclear Structure

         Low-Lying 0+ States of 16O in the α-Particle Model of Light Nuclei

         Strong Interaction Effects in Antiprotonic Atoms

         Validity of DWBA in a Three-Body Model of Stripping

         Nuclear Reactions and Structure Problems in the 7- and 8- Nucleon Systems

         Quasifree α-α Scattering in the Reaction 20Ne(α,2α)16O at 80 MeV

         Are the Solar-Neutrino Experiments Suggestive of the Existance of a Resonance in the 3He+3He System?

         Breakup of 12C into Three Alphas at Ex=18.36 MeV

         Peripheral Breakup of 3He on 197Au

         The Three-Body Nature of.Nuclear Reactions Involving Sequential Decays

         J-Dependence in Knock-out Reactions

         Three α-Particle System in 12C Excited States

         Supermultiplet Expansion and Oscillator Cluster Parentage in Light Nuclei

         Energy Calculations for 6Li with Short-Range Dynamical Correlations

         Panalyzation as a Probe of the Mechanism of Deuteron Disintegration

         Does an ℓI-independent α-α Interaction Exist?

         Differences in the Three-Body Final States of 10B(d,α)αα and 9Be(3He,α)αα at Low Energies

         Connection Between the Level Structure of 4He and (5He, 5Li)

         Three Body Break-up of 12C by 52 MeV Proton?

         Structure of 10B Formed by the Reaction 9Be+p