Soft-Pion Limit and K_<2π> Decays

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概要

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• The current algebra with the usual soft-pion limit has some problems in the calculation of hadronic decays : (i) the K_<2π>-decay amplitudes critically depend on which pion is assumed to be soft, (ii) the only intermediate states which can contribute to the pole terms must have the same masses as those of the initial and final particles. As a result the resonances do not give any contributions, (iii) the initial and final particles must have the the same masses, i. e., m_Δ=m_n, m_K=m_π, etc. We will show that these problems can be avoided if one takes the soft-pion limit in the rest frame of the pion.

• 理論物理学刊行会の論文
• 1972-12-25

著者

• Kikugawa Hiroyuki

  Department Of Physics University Of Tokyo

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• Soft-Pion Limit and K_ Decays
• Search for the Anomaly-Free Interactions

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