Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/$c^2$ in the Reaction $e^+e^-\to\pi^+\pi^-\psi(2S)$ Measured at BaBar

B. Aubert; et al; The BABAR Collaboration

arxiv: hep-ex/0610057 · v2 · submitted 2006-10-18 · ✦ hep-ex

Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/c² in the Reaction e^+e^-toπ^+π^-psi(2S) Measured at BaBar

The BABAR Collaboration , B. Aubert , et al This is my paper

classification ✦ hep-ex

keywords structurebabarthresholdabovebroadcenter-of-masscompatibilitycontaining

0 comments

read the original abstract

We present a measurement of the cross section of the process $e^+e^-\to\pi^+pi^-\psi(2S)$ from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the PEP-II $e^+e^-$ storage rings. The study is based on 298 fb$^{-1}$ of data recorded with the BaBar detector. A structure is observed in the cross-section not far above threshold, near 4.32 GeV. We also investigate the compatibility of this structure with the Y(4260) previously reported by this experiment.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Study of $1^{--}$ P wave charmoniumlike and bottomoniumlike tetraquark spectroscopy
hep-ph 2025-03 unverdicted novelty 3.0

Constituent quark model with imported meson parameters predicts lowest 1-- P-wave tetraquark mass near 4.15 GeV and proposes that ψ(4230), ψ(4360), ψ(4660), and Υ(10753) may be such states with possible multiples near...