$ SU(3) $ Classification of $ p $-Wave $ ηπ$ and $ η'π$ Systems

Details $ SU(3) $ Classification of $ p $-Wave $ ηπ$ and $ η'π$ Systems $ SU(3) $ Classification of $ p $-Wave $ ηπ$ and $ η'π$ Systems

2002-11-07

arxiv.org/abs/hep-ph/0211100v1

Eur.Phys.J.A15:539-542,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1140/epja/i2002-10058-0

An exotic meson, the $\pi_1(1400)$ with $J^{PC}=1^{-+}$, has been seen to decay into a p-wave $\eta\pi$ system. If this decay conserves flavor SU(3), then it can be shown that this exotic meson must be a four-quark state ($q\bar q+q\bar q$) belonging to a flavor ${\bf10}\oplus{\bf\bar{10}}$ representation of SU(3). In contrast, the $\pi_1(1600)$ with a substantial decay mode into $\eta'\pi$ is likely to be a member of a flavor octet.

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