Measurement of the absolute branching fraction of Λc+→pKS0η decays

Measurement of the absolute branching fraction of Λc+→pKS0η decays

Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0.084±0.028)%, where the first uncertainty is sta...

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Veröffentlicht in:Physics letters. B 2021-06, Vol.817 (C), p.136327, Article 136327
Hauptverfasser: Baldini Ferroli, R., Bortone, A., Cetin, S.A., Chen, S.J., Chen, X.R., Fang, J., Fava, L., Feldbauer, F., Felici, G., Fu, C.D., Gao, X.L., Gao, Y., Goetzen, K., Greco, M., Guo, Y.P., Guskov, A., Hao, X.Q., Holtmann, T., Hou, Z.L., Hu, Y., Huang, X.T., Ikegami Andersson, W., Irshad, M., Ji, Q.P., Kalantar-Nayestanaki, N., Keshk, I.K., Kliemt, R., Kuessner, M., Kurth, M.G., Lenz, T., Li, F., Li, H.J., Li, Lei, Li, X.H., Liang, H., Liu, B., Liu, B.J., Liu, H.M., Liu, K.Y., Liu, Ke, Liu, L., Liu, Y.B., Lou, X.C., Lu, H.J., Lu, J.G., Luo, T., Luo, X.L., Ma, L.L., Maldaner, S., Malik, Q.A., Mangoni, A., Mao, Y.J., Nakhoul, S., Nefedov, Y., Olsen, S.L., Ping, J.L., Ping, R.G., Pitka, A., Qian, W.-B., Qin, X.S., Redmer, C.F., Rodin, V., Shan, D.C., Shao, M., Song, Q.Q., Sun, T., Uman, I., Wang, B.L., Wang, D.Y., Wang, L.L., Wang, M., Wang, W.H., Wang, Ziyi, Wen, S.P., White, D.J., Wu, L.H., Xia, L., Xu, J.J., Yang, H.X., Yang, L., Yang, S.L., Yang, Yifan, Yuan, C.Z., Yuan, Z.Y., Zeng, Y., Zhang, H.H., Zhang, H.Y., Zhang, J.Z., Zhang, S.F., Zhang, X.Y., Zhang, Z.Y., Zhao, Lei, Zhao, Ling, Zhao, M.G., Zhao, Q., Zheng, B., Zhou, Q., Zhou, X.K., Zhu, J., Zhu, S.H.
Format: Artikel
Sprache:eng
Schlagworte:
[formula omitted] decays
Absolute branching fraction
Astronomy & Astrophysics
ASTRONOMY AND ASTROPHYSICS
BESIII
Charmed baryon
Physics
Λ^+_c$, Charmed baryon decays
Λc+ decays
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Beschreibung
Zusammenfassung:Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction B(Λc+→pKS0η)B(Λc+→pK−π+), and consistent with theoretical predictions of SU(3) flavor symmetry.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2021.136327