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Prog. Theor. Phys. Vol. 26 No. 4 (1961) pp. 505-518

[ Full Text PDF : FREE ACCESS (739K) ]

On a Radiative Decay of Σ+

Makoto Sawamura

Department of Physics, Rikkyo University, Tokyo

(Received June 14, 1961)

Abstract:

The radiative decay of Σ+ is examined by using a dispersion theoretic method. The matrix element is related to those of the pion-photoproduction from proton and the ordinary Σ+-decay in the lowest mass approximation. In order to obtain the real part of the matrix element, according to Fijii-Iwata's rule we introduce the parameter which reflects the damping behavior of the decay matrix element corresponding to the increase of Q-values. Concerning the effective interaction of Σ+→n0+π+, we assumed the conventional type, i.e. a++b+γ5. Examining our results in the light of the observed decay rate, we conclude that b+ may be excluded in some accuracy as seen in Table II.


URL : http://ptp.ipap.jp/link?PTP/26/505/
DOI : 10.1143/PTP.26.505

[ Full Text PDF : FREE ACCESS (739K) ] Citation:

References:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 34 No. 5 (1965) pp. 843-850 :
    Weak Gamma Decays of Hyperons
    Chiaki Itoh
  2. Progress of Theoretical Physics Vol. 35 No. 4 (1966) pp. 648-658 :
    Systematic Analysis of the Weak γ Decay of Hyperons
    Masahiko Hirooka and Masataka Hosoda

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