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The 405 Multiplet Meson Decays

C. Itoh

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Abstract

We calculate 1-8-27 mixing angles, using observed masses and predicted ones from the 405 mass formula. 8-27 mixings are shown to be very large. Jp = 2+ singlet and octet decay partial widths are estimated in the SU(3) reducible 36-multiplet model. 36-plet estimations seem agree well with experiment rather than nonet estimates. However, very large 8-27 mixings are not desirable, and give rather small partial widths for some decay modes. From a regularity between the squared masses, of the mesons, possible Jp = 1+ octet is proposed. Decay modes of this 1+ octet are discussed.

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We calculate 1-8-27 mixing angles, using observed masses and predicted ones from the 405 mass formula. 8-27 mixings are shown to be very large. Jp = 2+ singlet and octet decay partial widths are estimated in the SU(3) reducible 36-multiplet model. 36-plet estimations seem agree well with experiment rather than nonet estimates. However, very large 8-27 mixings are not desirable, and give rather small partial widths for some decay modes. From a regularity between the squared masses, of the mesons, possible Jp = 1+ octet is proposed. Decay modes of this 1+ octet are discussed.

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Available abstract

We calculate 1-8-27 mixing angles, using observed masses and predicted ones from the 405 mass formula. 8-27 mixings are shown to be very large. Jp = 2+ singlet and octet decay partial widths are estimated in the SU(3) reducible 36-multiplet model. 36-plet estimations seem agree well with experiment rather than nonet estimates. However, very large 8-27 mixings are not desirable, and give rather small partial widths for some decay modes. From a regularity between the squared masses, of the mesons, possible Jp = 1+ octet is proposed. Decay modes of this 1+ octet are discussed.

Key concepts: Physics, Octet, Multiplet, Particle physics, Meson, Mixing (physics), Singlet state, Mass formula

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