@article{cd27f5f5ada549d98ee1a40176a20add,
title = "Evidence for ηc(2S) in ψ(3686)→γKS0K ±π+π+π- ",
abstract = "We search for the M1 radiative transition ψ(3686) →γηc(2S) by reconstructing the exclusive ηc(2S)→KS0K±π+π +π- decay using 1.06×108 ψ(3686) events collected with the BESIII detector. The signal is observed with a statistical significance of greater than 4 standard deviations. The measured mass of the ηc(2S) is 3646.9±1.6(stat)±3.6(syst) MeV/c2, and the width is 9.9±4.8(stat)±2.9(syst) MeV/c2. The product branching fraction is measured to be B(ψ(3686)→γηc(2S)) ×B(ηc(2S)→KS0K±π+π +π-)=(7.03±2.10(stat)±0.70(syst)) ×10-6. This measurement complements a previous BESIII measurement of ψ(3686)→γηc(2S) with ηc(2S)→KS0K±π+ and K +K-π0.",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and O. Albayrak and Ambrose, {D. J.} and An, {F. F.} and Q. An and Bai, {J. Z.} and {Baldini Ferroli}, R. and Y. Ban and J. Becker and Bennett, {J. V.} and M. Bertani and Bian, {J. M.} and E. Boger and O. Bondarenko and I. Boyko and Briere, {R. A.} and V. Bytev and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and X. Chen and Chen, {Y. B.} and Cheng, {H. P.} and Chu, {Y. P.} and D. Cronin-Hennessy and Dai, {H. L.} and Dai, {J. P.} and D. Dedovich and Deng, {Z. Y.} and A. Denig and I. Denysenko and M. Destefanis and Ding, {W. M.} and Y. Ding and Dong, {L. Y.} and Dong, {M. Y.} and Du, {S. X.} and J. Fang and Fang, {S. S.}",
note = "Publisher Copyright: {\textcopyright} 2013 American Physical Society.",
year = "2013",
month = mar,
day = "4",
doi = "10.1103/PhysRevD.87.052005",
language = "English",
volume = "87",
journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",
issn = "1550-7998",
number = "5",
}