One Boson Exchange Model in Proton-Proton Scattering

Sawada, Shoji; Ueda, T.; Watari, Watarô; Yonezawa, Minoru

doi:10.1143/ptp.28.991

Cited by 92 publications

(32 citation statements)

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“…In 1961, a certain model was proposed by the present authors 1 ), 2 ) in an attempt to explain nuclear forces by introducing many kinds of mesons on the basis of the Sakata model for elementary particles. The model has been referred to as the "one-boson-exchange model" (OBE model) or the "one-particle-exchange model".…”

Section: ·3mentioning

confidence: 99%

“…This model is particularly attractive for its simplicity. The first analysis of the strong interactions by the OBEC model was made on proton-proton scattering below the threshold for pion production (;S300 MeV) by Sawada~ Ueda, Watari and Yonezawa (1962) 2 ) and on low energy pion-nucleon scattering by Kikugawa (1964) . 34 ) The OBEC model can be extended to the phenomena in the inelastic region.…”

Section: · 2 Nuclear Force and The One-boson-exchange Modelmentioning

confidence: 99%

See 1 more Smart Citation

Chapter 3. One-Boson-Exchange Model

Ogawa¹,

Sawada²,

Ueda³

et al. 1967

Prog. Theor. Phys. Suppl.

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Section: ·3mentioning

confidence: 99%

Section: · 2 Nuclear Force and The One-boson-exchange Modelmentioning

confidence: 99%

Chapter 3. One-Boson-Exchange Model

Ogawa¹,

Sawada²,

Ueda³

et al. 1967

Prog. Theor. Phys. Suppl.

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“…If one introduces a new scalar boson, besides n, p and w, and adjust the couplings of these bosons to the nucleon, then the nuclear force in regions I and II can be explained well_1 6 l Especially, it is remarkable that experimental phase shift in all the states except S-wave are well reproduced by OBEC only. 17 l Because the effect of the righthand-cut is not important in these states, the above fact shows that the lefthand-cut contribution is dominant in the outer region. As regards the nuclear force in the outer region, therefore, we merely point out that the existence of all the required bosons is ·assured in the present model.…”

Section: Ii) Coupling Of the K-meson To The Baryonmentioning

confidence: 93%

Boson Levels and Composite Model

et al. 1963

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Boson levels are investigated dynamically from the viewpoint of the symmetrical Sakata model. It is assumed that almost all the observed bosons are the bound states of baryonanti-baryon pair. We formulate the problem by the NfD method in a modified form suitable for our purpose. The consequences about the mass spectrum which are derived irrespectively of the mass difference Jm between nucleon and A, are that, i) there exist no other octet bosons than n-octet and p-octet bosons, ii) there are bound states in unitary singlet SP 0 state (ABC-particle) and in 3S 1 state (~-particle), iii) the existence of unitary singlet IS 0 (o-+) composite particle is probable. Our theory can reproduce almost correctly the observed mass spectrum, when we take account of the mass difference between N and A. Relations of our theory to the usual Yukawa coupling theory about the interaction of bosons and baryons are also investigated. We obtain a right order of magnitude of the effective coupling constant. Especially it is shown that the coupling constant of pion to nucleon is correctly given independent of the details of our method. Finally, comments on the properties of nuclear forces in the inner region are given. § 1. IntroductionAs the development of experimental techniques, new excited levels of bosons and fermions have been found for these several years. The increase of the number of these levels forces us to understand all of them in a unified manner.Since Sakata proposed a model in which only p, n and A particles are considered to be fundamental and other particles are composed of these particles and their anti-particles,ll the study along the above line has been accelerat~d.In fact, there are many attempts to find a correct mass level formula, grouptheoretical investigations of the symmetry property of three-dimensional unitary space, 2 ),s), 4 J and attempts to establish the spin-mass relation by analyticity conat NERL on May 31, 2015 http://ptp.oxfordjournals.org/ Downloaded from

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“…75 In the attempt in terms of the absorption model, Kanada, Otsuki, Sakai and Yasuno treated also a soft core potential. 40 ) ReO' (L) to be inserted into (3 · 6) is obtained in the lowest order approximation for a Gaussian soft core but with the K matrix to guarantee .unitarity as in the OBE contribution model: 21 ) etc. we should say that all of the potential parameters of the Gaussian soft core given in Table 2 · 2 are not finally ruled out by the high energy N-N scattering experiment.…”

Section: · §3 · 3 Soft-core Plus Absorption Modelmentioning

confidence: 99%

Chapter 7. On Repulsive Core of Nuclear Forces

Otsuki

1968

Prog. Theor. Phys. Suppl.

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One Boson Exchange Model in Proton-Proton Scattering

Cited by 92 publications

References 0 publications

Chapter 3. One-Boson-Exchange Model

Chapter 3. One-Boson-Exchange Model

Boson Levels and Composite Model

Chapter 7. On Repulsive Core of Nuclear Forces

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