Canonical Charmonium Interpretation for Y(4360) and Y(4660)

Abstract

In this work, we consider the canonical charmonium assignments for Y(4360) and Y(4660). Y(4660) is good candidate of $5^3{\mathrm{S}}_1$ $c\bar{c}$ state, the possibility of Y(4360) as a $3^3{\mathrm{D}}_1$ $c\bar{c}$ state is studied, and the charmonium hybrid interpretation of Y(4360) can not be excluded completely. We evaluate the $e^{+}{e}^{-}$ leptonic widths, E1 transitions, M1 transitions and the open flavor strong decays of Y(4360) and Y(4660). Experimental tests for the charmonium assignments are suggested.

32 pages, 4 figures

References in corpus (1)

• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle

Cited by in corpus (2)

• Evidence that the Y(4660) is a f_0(980)psi' bound state
• The spectrum of charmonium in the Resonance-Spectrum Expansion