Study of the Dalitz decay J/psi -> e(+)e(-)eta

Ablikim, M; Achasov, MN; Ahmed, S; Albrecht, M; Alekseev, M; Amoroso, A; An, FF; An, Q; Bai, Y; Bakina, O; Ferroli, RB; Ban, Y; Begzsuren, K; Bennett, DW; Bennett, JV; Bennett, JV; Berger, N; Bertani, M; Bettoni, D; Bianchi, F; Boger, E; Boyko, I; Br

Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.

PHYSICAL REVIEW D, 2019; 99 (1):

Abstract

We study the electromagnetic Dalitz decay J/psi -> e(+)e(-)eta and search for dielectron decays of a dark gauge boson (gamma') in J/psi -> gamma......

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