English

First Observation of the Decays chi_{cJ} -> pi^0 pi^0 pi^0 pi^0

High Energy Physics - Experiment 2012-08-27 v2

Abstract

We present a study of the P-wave spin -triplet charmonium chi_{cJ} decays (J=0,1,2) into pi^0 pi^0 pi^0 pi^0. The analysis is based on 106 million \psiprime decays recorded with the BESIII detector at the BEPCII electron positron collider. The decay into the pi^0 pi^0 pi^0 pi^0 hadronic final state is observed for the first time. We measure the branching fractions B(chi_{c0} -> pi^0 pi^0 pi^0 pi^0)=(3.34 +- 0.06 +- 0.44)*10^{-3}, B(chi_{c1} -> pi^0 pi^0 pi^0 pi^0)=(0.57 +- 0.03 +- 0.08)*10^{-3}, and B(chi_{c2} -> pi^0 pi^0 pi^0 pi^0)=(1.21 +- 0.05 +- 0.16)*10^{-3}, where the uncertainties are statistical and systematical, respectively.

Keywords

Cite

@article{arxiv.1011.6556,
  title  = {First Observation of the Decays chi_{cJ} -> pi^0 pi^0 pi^0 pi^0},
  author = {BESIII Collaboration},
  journal= {arXiv preprint arXiv:1011.6556},
  year   = {2012}
}

Comments

7 pages, 3 figures