Properties of the baryon antidecuplet

Yongseok Oh, Hungchong Kim, Su Houng Lee
<span title="2004-05-19">2004</span> <i title="American Physical Society (APS)"> <a target="_blank" rel="noopener" href="" style="color: black;">Physical Review D</a> </i> &nbsp;
We study the group structure of baryon anti-decuplet containing the Θ^+. We derive the SU(3) mass relations among the pentaquark baryons in the anti-decuplet, when there is either no mixing or ideal mixing with the pentaquark octet, as advocated by Jaffe and Wilczek. This constitutes the Gell-Mann--Okubo mass formula for the pentaquark baryons. We also derive SU(3) symmetric Lagrangian for the interactions of the baryons in the anti-decuplet with the meson octet and the baryon octet. Our
more &raquo; ... s for the decay widths of the anti-decuplet states suggests that the N(1710) is ruled out as a pure anti-decuplet state, but it may have anti-decuplet component in its wavefunction if the multiplet is mixed with the pentaquark octet.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.1103/physrevd.69.094009</a> <a target="_blank" rel="external noopener" href="">fatcat:avqifnnvczfrrjkyhzrb37u7mi</a> </span>
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