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Prog. Theor. Phys. Vol. 55 No. 5 (1976) pp. 1582-1590

[ Full Text PDF : FREE ACCESS (687K) ]

Nonleptonic Hyperon Decays and Lightlike Chiral Structure of Hadrons

Akira Toyoda, Sin-ya Furui, Tetsuya Tsuchida and Mitsuo Imoto

Department of Physics, Ibaraki University, Mito 310

(Received March 2, 1976)

Abstract:

On the basis of the lightlike chiral structure of hadrons, we investigate the S- and P-wave nonleptonic decays of hyperons. Assuming that (i) the 1/2+ octet baryons transform as (6, 3) under the chiral SUl(3) ⊗ SUl(3) and (ii) the weak Hamiltonian transforms as octet under either the left-handed or the right-handed SUl(3), we show that the equal x+-commutator terms satisfy the ΔI = 1/2 rules and the L-S relation for the S-wave decays, and the ΔI = 1/2 rule for the P-wave Σ-decays.


URL : http://ptp.ipap.jp/link?PTP/55/1582/
DOI : 10.1143/PTP.55.1582

[ Full Text PDF : FREE ACCESS (687K) ] Citation:

References:

  1. See, for instance, A. Toda and A. Murayama, Prog. Theor. Phys. 39 (1968), 1289[PTP].
  2. See, for instance,
    K. Fujii, M. Imoto, S. Furui, S. Kawasaki and T. Tsuchida, Prog. Theor. Phys. 38 (1967), 388[PTP]
    M. Imoto and K. Nakamura, Prog. Theor. Phys. 45 (1971), 833[PTP].
  3. S. Furui, Soryusiron Kenkyu (mimeographed circular in Japanese) 40 (1970), F3
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  11. All the theories and models that can reproduce the S-wave experimental data, such as the ΔI = 1/2 rule, the L-S relation and the vanishing of the Σ+ + amplitude, should have only the octet state in the t-channel. This situation was first pointed out at the meeting on the weak interactions held at Reseach Institute for Fundamental Physics, Kyoto, in 1971.
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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 58 No. 4 (1977) pp. 1321-1322 :
    Nonleptonic Hyperon Decays and Lightlike Chiral Structure of Hadrons. I
    Shin-ya Furui, Akira Toyoda and Tetsuya Tsuchida
  2. Progress of Theoretical Physics Vol. 59 No. 5 (1978) pp. 1600-1612 :
    Nonleptonic Hyperon Decays and Lightlike Chiral Structure of Hadrons. II
    Shin-ya Furui, Akira Toyoda and Tetsuya Tsuchida

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