Evidence that the Y(4660) is a f_0(980)psi' bound state

TL;DR

The paper suggests that the Y(4660) particle is likely a bound state of the f_0(980) meson and the psi' particle, based on current experimental data.

Contribution

It provides a theoretical interpretation of Y(4660) as a f_0(980)psi' molecule and proposes experimental tests for this hypothesis.

Findings

Y(4660) is consistent with a f_0(980)psi' bound state

Experimental data supports the molecular interpretation

Proposes specific tests to verify the hypothesis

Abstract

We demonstrate that the experimental information currently available for the Y(4660) is consistent with its being a f_0(980)psi' molecule. Possible experimental tests of our hypothesis are presented.