Observation of the decays chi(cJ) -> phi phi eta
Observation of the decays chi(cJ) -> phi phi eta
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观察衰变 chi(cJ) -> phi phi eta
DOI:
10.1103/physrevd.101.012012
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发表时间:
2020
影响因子:
5
通讯作者:
Briere
中科院分区:
文献类型:
--
作者:
Ablikim M.;Achasov M. N.;Adlarson P.;Ahmed S.;Albrecht M.;Alekseev M.;Amoroso A.;An F. F.;An Q.;Bai Y.;Bakina O.;Ferroli R. Baldini;Balossino I;Ban Y.;Begzsuren K.;Bennett J. V;Berger N.;Bertani M.;Bettoni D.;Bianchi F.;Biernat J.;Bloms J.;Boyko I;Briere
Using a data sample ofdecays collected by the BESIII detector at the Beijing Electron Positron Collider (BEPCII), we observe the decays, where theare produced via the radiative processes. The branching fractions are measured to be B(χc0→ϕϕη)=(8.41±0.74±0.62)×10-4, B(χc1→ϕϕη)=(2.96±0.43±0.22)×10-4, and B(χc2→ϕϕη)=(5.33±0.52±0.39)×10-4, where the first uncertainties are statistical, and the second are systematic. We also search for intermediate states in theorsubsystems, but no significant structure is seen due to the limited statistics.