On the nature of the $π_2(1880)

Abstract

The strong decays of the ${\pi }_2(1880)$ as the $2^1{D}_2$ quark-antiquark state are investigated in the ${}^3{P}_0$ model and the flux-tube model, respectively. The results are similar in the two models. It is found that the decay patterns of the conventional $2^1{D}_2$ meson and the $2^{-+}$ light hybrid are very different, and the experimental evidence for the ${\pi }_2(1880)$ is consistent with it being the conventional $2^1{D}_2$ meson rather than the $2^{-+}$ light hybrid. The possibility of the ${\pi }_2(1880)$ being a mixture of the conventional $q\bar{q}$ and the hybrid is discussed.

11 pages, 3 figures, version accepted for publication in Phys. Rev. D

References in corpus (19)

• Higher Charmonia
• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Four Sorts of Mesons
• Dynamics and Decay of Heavy-Light Hadrons
• Strong Decays of Strange Quarkonia
• Strong decays of charmed baryons
• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• Exotic Meson Production in the $f_1(1285){\pi }^{-}$ System observed in the Reaction ${\pi }^{-}p\to \eta {\pi }^{+}{\pi }^{-}{\pi }^{-}p$ at 18 GeV/c
• Y(2175): Distinguish Hybrid State from Higher Quarkonium
• Canonical Interpretation of the D_{sJ}(2860) and D_{sJ}(2690)
• Exotic Meson Decay to $\omega {\pi }^0{\pi }^{-}$
• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)
• Mechanisms for ${\chi }_{cJ}\to \varphi \varphi$ Decays
• $X(1835)$ and $\eta (1760)$ observed by the BES Collaboration
• The $\eta (2225)$ observed by the BES Collaboration
• Towards the assignment for the $4^1{S}_0$ meson nonet
• A partial wave analysis of pbar-p -> eta-eta-pizero
• Quark--antiquark states and their radiative transitions in terms of the spectral integral equation. {\Huge III.} Light mesons

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