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2004•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsOpen access

Where are the missing members of the baryon antidecuplet?

Dmitri Diakonov, V. Petrov

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Abstract

We analyze the consequences of the observation of exotic pentaquark baryons on the location of the nonexotic baryons belonging to the antidecuplet. We suggest that there must be a new nucleon state at 1650--1690 MeV and a new $\ensuremath{\Sigma}$ baryon at 1760--1810 MeV.

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We analyze the consequences of the observation of exotic pentaquark baryons on the location of the nonexotic baryons belonging to the antidecuplet. We suggest that there must be a new nucleon state at 1650--1690 MeV and a new $\ensuremath{\Sigma}$ baryon at 1760--1810 MeV.

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Available abstract

We analyze the consequences of the observation of exotic pentaquark baryons on the location of the nonexotic baryons belonging to the antidecuplet. We suggest that there must be a new nucleon state at 1650--1690 MeV and a new $\ensuremath{\Sigma}$ baryon at 1760--1810 MeV.

Key concepts: Pentaquark, Baryon, Particle physics, Physics, Sigma, Exotic hadron, Nucleon, Nuclear physics

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