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1974•Progress of Theoretical PhysicsOpen access

Mass Formula for Hadrons and a Nonet Scheme for Mesons

Takashi Fukuda, T. Yanagida, M. Yonezawa

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Abstract

The hadron mass formula is discussed in the quark-counting aspect. It is shown that the “free” quark picture gives the Gell-Mann Okubo formula. A nonet mass formula for mesons is proposed and the inverted assignment for η(549) and η′(958) in the 0- nonet is suggested. Classification of existing mesons into nonets is attempted.

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What this paper is about

The hadron mass formula is discussed in the quark-counting aspect. It is shown that the “free” quark picture gives the Gell-Mann Okubo formula. A nonet mass formula for mesons is proposed and the inverted assignment for η(549) and η′(958) in the 0- nonet is suggested. Classification of existing mesons into nonets is attempted.

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Available abstract

The hadron mass formula is discussed in the quark-counting aspect. It is shown that the “free” quark picture gives the Gell-Mann Okubo formula. A nonet mass formula for mesons is proposed and the inverted assignment for η(549) and η′(958) in the 0- nonet is suggested. Classification of existing mesons into nonets is attempted.

Key concepts: Physics, Meson, Hadron, Particle physics, Quark, Mass formula, Quark model, Nuclear physics

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