Measurement of the branching fraction for ψ(3770) → γχ<i>c</i>0
PHYSICS LETTERS B, vol.753, pp.103-109, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 753
- Publication Date: 2016
- Doi Number: 10.1016/j.physletb.2015.11.074
- Journal Name: PHYSICS LETTERS B
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.103-109
- Bursa Uludag University Affiliated: Yes
Abstract
By analyzing a data set of 2.92 fb(-1) of e(+) e(-) collision data taken at root s = 3.773 GeVand 106.41 x 10(6) psi(3686) decays taken at root s = 3.686 GeVwith the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for psi(3770)->gamma chi c0 to be B(psi(3770)->gamma chi c0) = (6.88 +/- 0.28 +/- 0.67) x 10(-3) and Gamma[psi(3770)->gamma chi c0] = (187 +/- 8 +/- 19) keV, respectively. These are the most precise measurements to date. (C) 2015 The Authors. Published by Elsevier B.V.