Abstract
The unflavored light meson families, namely $\omega_2$, $\rho_2$, and $\phi_2$, are studied systematically by investigating the spectrum and the two-body strong decays allowed by Okubo-Zweig-Iizuka rule. Including the four experimentally observed states and other predicted states, phenomenological analysis of the partial decay widths can verify the corresponding assignments of these states into the families. Moreover, we provide typical branching ratios of the dominant decay channels, especially for missing ground states, which is helpful to search for or confirm them and explore more properties of these families at experiment.
Highlights
The unflavored light meson families, namely, ω2, ρ2, and φ2, are studied systematically by investigating the spectrum and the two-body strong decays allowed by the Okubo-Zweig-Iizuka rule
Since the quark model was proposed in 1964 [1,2], much progress on the study of the light hadron spectrum has been made by joint efforts from both theorists and experimentalists [3]
There exist abundant phenomenological works that are involved in pseudoscalar mesons associated with these observed Xð1835Þ, Xð2120Þ, Xð2370Þ, and Xð2500Þ [4,5]; vector mesons with the reported Yð2175Þ [6,7]; ρ and ρ3 mesons [7,8]; axial vector mesons [9,10]; tensor mesons [11,12,13]; pseudotensor mesons [14,15]; kaons [16]; and higher spin mesons [17]
Summary
Since the quark model was proposed in 1964 [1,2], much progress on the study of the light hadron spectrum has been made by joint efforts from both theorists and experimentalists [3]. When further checking the experimental status of light mesons [3], we notice an interesting phenomenon; i.e., the ground states of unflavored light meson families with JPC 1⁄4 2−− are still absent, their higher excited states are not well established yet, and they are only collected into “further states” in the Particle Date Group (PDG) [3]. Based on the experimental information of these four 2−− states, we continue to discuss their possible assignments into ρ2 and ω2 meson families with the mass spectrum analysis and a two-body OZI-allowed strong decay calculation.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
