Moment Analysis of Process J/ψ → ρηπ and 1<sup>-+</sup> Exotic Hybrid

Chin. Phys. Lett.

1999, Vol. 16

Issue (7): 484-486 DOI:

Original Articles

Moment Analysis of Process J/ψ → ρηπ and 1^-+ Exotic Hybrid

YU Hong;SHEN Qi-xing

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039

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YU Hong, SHEN Qi-xing 1999 Chin. Phys. Lett. 16 484-486

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Abstract Does an exotic 1^-+ hybrid candidate ρ (1405) in the vicinity of a₂ (1320) exist? It is worth to confirm this state in the process J/ψ → ρηπ at the BEPC (Beijing Electron-Positron Collider)/BES (Beijing Spectrameter). Considering ρ (1405), a₂ (1320) and a₀ (1450) overlap in this mass region, the three-state coupling structure mode is discussed by using the generalized moment analysis method. A series of moments for the mode and a criterion are given for confirming the exotic 1^-+ hybrid.

Keywords: 12.38.-t 13.20.Gd 14.40.Cs

Published: 01 July 1999

PACS:	12.38.-t	(Quantum chromodynamics)
	13.20.Gd	(Decays of J/ψ, Υ, and other quarkonia)
	14.40.Cs

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1999/V16/I7/0484

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