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Prog. Theor. Phys. Vol. 48 No. 6 (1972) pp. 1899-1917

[ Full Text PDF : FREE ACCESS (1419K) ]

β-Rays Emitted from the Polarized Nuclei and β-Decay Interactions on the Strong Meson-Dominance Model

Seitaro Nakamura, Shigeo Sato* and Masataka Igarashi**

Department of Physics, Faculty of Science, University of Tokyo, Tokyo
and
Department of Physics, College of Science and Engineering, Nihon University, Tokyo
*Department of Physics, Rikkyo University, Tokyo
**Max-Planck Institut für Physik und Astrophysik, München

(Received June 5, 1972)

Abstract:

As a natural extension of the original Yukawa theory of β-decay, the strong meson-dominance model is presented, in which all strong mesons can in general contribute to β-decay. By assuming that the weak interactions between mesons and leptons are exclusively V-A type, general expressions of the beta-decay interactions are deduced, which agree exactly with those given by Weinberg. Here the main contributions come out from the intermediary acts of mesons, π(140 MeV), ρ(760 MeV), δ(960 MeV), πN(1016 MeV), A1(1070 MeV) and B(1220 MeV).
The theoretical formulas for the β-ray spectra emitted from the polarized nuclei are given, among which the contributions from the pseudo-tensor interaction (the second class interaction) coming from the B-meson channel are noticeable, besides those from the tensor interaction (the first-class interaction) coming from the ρ-meson channel.


URL : http://ptp.ipap.jp/link?PTP/48/1899/
DOI : 10.1143/PTP.48.1899

[ Full Text PDF : FREE ACCESS (1419K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 50 No. 6 (1973) pp. 1894-1907 :
    Radiative Corrections to Asymmetry and Energy Spectrum of β Rays from Polarized Nuclei
    Yoshimatsu Yokoo, Shigenao Suzuki and Masato Morita
  2. Progress of Theoretical Physics Vol. 56 No. 4 (1976) pp. 1280-1286 :
    The Second Class Current and Structure of Elementary Particles
    Hirofumi Senju and Takeo Matsushima
  3. Progress of Theoretical Physics Vol. 58 No. 4 (1977) pp. 1218-1230 :
    Electron-Newtrino Angular Correlation in G-Parity Nonconservation
    Toru Sato, Joji Yamane and Masato Morita
  4. Progress of Theoretical Physics Vol. 59 No. 5 (1978) pp. 1647-1660 :
    Generalization of the Weak Charged V-A Current
    Takamitsu Oka
  5. Progress of Theoretical Physics Vol. 63 No. 2 (1980) pp. 542-551 :
    The Second Class Current and the Strong Meson Dominance Model
    Masataka Igarashi, Seitaro Nakamura and Shigeo Sato
  6. Progress of Theoretical Physics Supplement No.60 (1976) pp. 1-18 :
    Asymmetry of Beta-Ray Angular Distribution in Polarized 12B and 12N and Second-Class Current
    Masato Morita, Mitiaki Nishimura, Asao Shimizu, Hisao Ohtsubo and Kuniharu Kubodera
  7. Progress of Theoretical Physics Supplement No.60 (1976) pp. 37-46 :
    Radiative Corrections to Nuclear Beta Decay
    Yoshimatsu Yokoo and Masato Morita

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