Details

Autor(en) / Beteiligte

• Ban, Y.
• Berger, N.
• Bertani, M.
• Biernat, J.
• Bortone, A.
• Calcaterra, A.
• Cao, G.F.
• Cao, N.
• Chang, J.F.
• Chang, W.L.
• Chen, S.J.
• Dai, X.C.
• de Boer, R.B.
• Denig, A.
• Ding, Y.
• Fang, Y.
• Feldbauer, F.
• Gao, Y.
• Gong, W.X.
• Gu, L.M.
• Gu, M.H.
• Gu, S.
• Guo, Y.P.
• Han, T.T.
• Han, T.Z.
• Himmelreich, M.
• Hu, H.M.
• Janchiv, S.
• Jiang, X.S.
• Kavatsyuk, M.
• Khoukaz, A.
• Kopf, B.
• Kuemmel, M.
• Kühn, W.
• Li, C.H.
• Li, Cheng
• Li, D.M.
• Li, J.Q.
• Li, Ke
• Li, S.Y.
• Liang, Y.T.
• Lin, C.X.
• Liu, D.
• Liu, F.H.
• Liu, Fang
• Liu, Feng
• Liu, Huanhuan
• Liu, K.Y.
• Liu, Ke
• Lou, X.C.
• Lu, F.X.
• Lu, X.L.
• Luo, P.W.
• Ma, Y.M.
• Mao, Z.P.
• Marcello, S.
• Muramatsu, H.
• Pathak, A.
• Qin, X.P.
• Qin, Z.H.
• Ravindran, K.
• Rong, G.
• Rosner, Ch
• Shan, X.Y.
• Shen, P.X.
• Song, J.J.
• Song, W.M.
• Song, Y.X.
• Sui, F.F.
• Sun, J.F.
• Sun, L.
• Sun, S.S.
• Sun, Z.T.
• Uman, I.
• Wang, K.
• Weidenkaff, P.
• Weidner, F.
• Wu, L.H.
• Wu, Z.
• Xia, L.
• Xie, X.H.
• Xu, J.J.
• Yang, H.X.
• Yang, Y.X.
• Yu, B.X.
• Yuan, Z.Y.
• Yue, C.X.
• Zhang, Guangyi
• Zhang, Jianyu
• Zhang, Lei
• Zhang, T.J.
• Zhao, Lei
• Zhao, Q.
• Zhao, Y.X.
• Zhemchugov, A.
• Zhou, Q.
• Zhou, X.R.
• Zhu, S.H.
• Zhu, W.J.
• Zhu, X.L.

Titel

Observation of a resonant structure in e+e− → ωη and another in e+e− → ωπ0 at center-of-mass energies between 2.00 and 3.08 GeV

Ist Teil von

• Physics letters. B, 2021-02, Vol.813 (C), p.136059, Article 136059

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Born cross sections for the processes e+e−→ωη and e+e−→ωπ0 have been determined for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector at the BEPCII collider. The results obtained in this work are consistent with previous measurements but with improved precision. Two resonant structures are observed. In the e+e−→ωη cross sections, a resonance with a mass of (2176±24±3)MeV/c2 and a width of (89±50±5)MeV is observed with a significance of 6.2σ. Its properties are consistent with the ϕ(2170). In the e+e−→ωπ0 cross sections, a resonance denoted Y(2040) is observed with a significance of more than 10σ. Its mass and width are determined to be (2034±13±9)MeV/c2 and (234±30±25)MeV, respectively, where the first uncertainties are statistical and the second ones are systematic.