# Study of the pi+pi-J/psi Mass Spectrum via Initial-State Radiation at BABAR

@inproceedings{Aubert2008StudyOT, title={Study of the pi+pi-J/psi Mass Spectrum via Initial-State Radiation at BABAR}, author={The BaBar Collaboration B. Aubert and et al.}, year={2008} }

We present an update of the study of the Y(4260) resonance, produced in the process e{sup +}e{sup -} {yields} {gamma}{sub ISR} {pi}{sup +}{pi}{sup -} J/{psi} using initial-state radiation events at the PEP-II e{sup +}e{sup -} storage rings. This study is based on 454 fb{sup -1} of data recorded with the BABAR detector at a center-of-mass energy in the {Upsilon}(4S) resonance region. From a fit with a single non-relativistic Breit-Wigner shape we obtain updated parameters for the Y(4260…

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