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Amoroso, A.; Balossino, I.; Ban, Y.; Bertani, M.; Brueggemann, A.; Chang, W.L.; Chen, Y.B.; Cui, J.J.; de Boer, R.E.; De Mori, F.; Ding, Y.; Feldbauer, F.; Fritsch, M.; Fritzsch, C.; Fu, C.D.; Gao, Y.N.; Geng, C.; Gramigna, S.; Han, W.Y.; Hao, X.Q.; Herold, C.; Hu, H.M.; Hu, J.F.; Huang, K.X.; Huang, L.Q.; Janchiv, S.; Jeong, J.H.; Ji, Q.P.; Jiang, X.S.; Jing, M.Q.; Kolcu, O.B.; Lane, J.J.; Lei, T.T.; Lenz, T.; Li, H.N.; Li, L.K.; Li, S.X.; Li, W.D.; Libby, J.; Lin, T.; Liu, B.J.; Liu, H.M.; Liu, Huihui; Liu, J.Y.; Liu, K.; Liu, P.L.; Liu, Q.; Liu, W.K.; Liu, Y.B.; Lou, X.C.; Lu, H.J.; Lyu, Y.F.; Ma, M.M.; Maas, F.E.; Nefedov, Y.; Pan, Y.; Plura, S.; Qi, H.R.; Ren, K.J.; Scodeggio, M.; Shangguan, J.F.; Shi, B.A.; Song, T.Z.; Sun, S.S.; Tang, C.J.; Wang, B.; Wang, M.; Wang, Meng; Wang, X.L.; Wang, Z.L.; Wiedner, U.; Wolke, M.; Wu, C.; Wu, J.F.; Wu, L.J.; Wu, Y.J; Xiao, Z.J.; Xie, Y.G.; Xie, Y.H.; Xie, Z.P.; Xing, T.Y.; Xu, Q.J.; Yan, F.; Yang, Yifan; You, Z.Y.; Yu, C.X.; Yuan, Z.Y.; Zeng, F.R.; Zeng, Y.J.; Zhang, H.H.; Zhang, H.Y.; Zhang, J.J.; Zhang, J.L.; Zhang, J.W.; Zhang, Q.Y.; Zhang, Y.T.; Zhang, Z.Y.; Zhao, Lei; Zhou, L.P.; Zhu, T.J.
Physics letters. B, 11/2023, Volume: 846Journal Article
The spin and parity of the charmed mesons Ds⁎+, D⁎0 and D⁎+ are determined for the first time to be JP=1− with significances greater than 10σ over other hypotheses of 2+ and 3−, using an e+e− collision data sample with an integrated luminosity of 3.19 fb−1 collected by the BESIII detector at a center-of-mass energy of 4.178 GeV. Different spin-parity hypotheses are tested via a helicity amplitude analysis of the processes e+e−→Ds⁎+Ds−, D⁎0D0 and D⁎+D−, with Ds⁎+→Ds+γ, D⁎0→D0π0, and D⁎+→D+π0. The results confirm the quark model predictions.
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