Observation of a charged charmoniumlike structure Zc(4020) and search for the Zc(3900) in e+e-→π+π-hc.

Ablikim, M; N Achasov, M; Albayrak, O; J Ambrose, D; F An, F; An, Q; Z Bai, J; Baldini Ferroli, R; Ban, Y; Becker, J; V Bennett, J; Bertani, M; M Bian, J; Boger, E; Bondarenko, O; Boyko, I; Braun, S; A Briere, R; Bytev, V; Cai, H; Cai, X; Cakir, O; Calcaterra, A; F Cao, G; A Cetin, S; F Chang, J; Chelkov, G; Chen, G; S Chen, H; C Chen, J; L Chen, M; J Chen, S; R Chen, X; B Chen, Y; P Cheng, H; K Chu, X; P Chu, Y; Cronin-Hennessy, D; L Dai, H; P Dai, J; Dedovich, D; Y Deng, Z; Denig, A; Denysenko, I; Destefanis, M; M Ding, W; Ding, Y; Y Dong, L; Y Dong, M; X Du, S

doi:10.1103/PhysRevLett.111.242001

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Observation of a charged charmoniumlike structure Zc(4020) and search for the Zc(3900) in e+e-→π+π-hc.

Shared by NobleBlocks on Dec 13, 2013 • 12:00 AM UTC

Authors:

M Ablikim

M N Achasov

O Albayrak

Abstract

We study e+e-→π+π-hc at center-of-mass energies from 3.90 to 4.42 GeV by using data samples collected with the BESIII detector operating at the Beijing Electron Positron Collider. The Born cross sections are measured at 13 energies and are found to be of the same order of magnitude as those of e+e-→...

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