The hybrid nonet of ${\pi }_1(1600)$ and ${\eta }_1(1855)$: analysis and predictions for the kaonic members

Abstract

The hybrid mesons form a part of the exotic spectrum of the standard model. The recent observation of the isoscalar hybrid, called the ${\eta }_1(1855)$, provides an important step towards the completion of the $1^{-+}$ nonet. In the present work, we analyze the masses and two-body decays of the members of this nonet using a model hadronic Lagrangian. The isovector ${\pi }_1(1600)$ has been studied extensively - both experimentally and on lattice. We use the available experimental and lattice data to extract the coupling constants. Using these parameters, we analyze the possible decay channels for the hybrid kaons.

Contribution to ICHEP-2022, Bologna, Italy

References in corpus (5)

• Hybrid Mesons
• Decays of an exotic $1^{-+}$ hybrid meson resonance in QCD
• The phenomenology of the exotic hybrid nonet with ${\pi }_1(1600)$ and ${\eta }_1(1855)$
• Partial wave analysis of $\psi (3686)\to K^{+}{K}^{-}\eta$
• Dalitz analysis of $D^0\to K^{-}{\pi }^{+}\eta$ decays at Belle

Cited by in corpus (2)

• Predictions of the hybrid mesons with exotic quantum numbers $J^{PC}=2^{+-}$
• Light tetraquark states with exotic quantum numbers $J^{PC}=2^{+-}$