Meson Masses in the Modified Han-Nambu Model

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概要

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• Details of the mass pattern for vector mesons associated with the new e^+e^- resonances are considered on a modified Han-Nambu or model. The principal question is to locate the colored K-type mesons Ψ(i,K), on the assumption that the Ψ(3.1), Ψ(3.7) are Ψ(i,p^0) and the Ψ(4.1) is Ψ(i,φ). The color octet-singlet mixing is taken to be very small because the decay widths Γ(V→e^+e^-) agree with the usual SU(3) predictions very well for the color singlet or ordinary mesons V=ρ^0,ω,φ. This implies an effective color interaction H_<eff> (0, 8) with negligible off-diagonal elements, which we associate with the non-commutativity of H(0.8) and the color Casimir operator C_2". Two possible extremes are`weak'H<eff> (0, 8) where the mass m(i,K)≈ 4〜5 GeV, and`strong'H_<eff> (0, 8) where m(i,K) ≈ 2〜3 GeV. The latter is a radical assumption but appears to be the only one that will make the color scheme compatible with the Niu particles (of lifetime 10^<-12> to 10^<-14> sec) if these turn out to be colored bosons. In that case it will be necessary to count varieties of the Niu particles to distinguish between color and charm or SU(4), and some details of this are discussed. It is suggested that if the Niu particles are fermions, they might be free Han-Nambu quarks themselves; and in any case, above a threshold in the 4〜5 GeV region, e^+e^- annihilation should lead to appreciable production of Niu particle pairs.

• 理論物理学刊行会の論文
• 1976-07-25

著者

• Kenny B.

  Department Of Physics University Of Western Australia

• PEASLEE D.

  Reseach School of Physical Sciences The Australian National University

• TASSIE L.

  Research School of Physical Sciences The Australian National University

• KENNY B.

  Department of Physics, University of Western Australia

• Kenny B.G.

  Department of Physics, University of Western Australia

• Peaslee D.C.

  Reseach School of Physical Sciences The Australian National University

• Tassie L.J.

  Research School of Physical Sciences The Australian National University

関連論文

• Meson Masses in the Modified Han-Nambu Model
• On lto's Derivation of the Phase of ε in Neutral Kaon Decay

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