E-viri
Recenzirano
-
Achasov, M. N.; Amoroso, A.; Bertani, M.; Cai, X.; Chang, T. T.; Che, G. R.; Chen, C.; Chen, M. L.; Chen, Y. B.; Cheng, W. S.; Coen, S. C.; Dai, H. L.; Fang, S. S.; Fang, W. X.; Feng, C. Q.; Fu, C. D.; Fu, J. L.; Ge, P. T.; Gong, L.; Gong, W. X.; Gramigna, S.; Guan, Z. L.; Guskov, A.; Hou, Z. L.; Ji, Q.; Ji, Y. Y.; Jia, Z. K.; Jiao, J. B.; Kabana, S.; Kopf, B.; Lenz, T.; Li, C. H.; Li, Cheng; Libby, J.; Liu, B. X.; Liu, H.; Liu, L. C.; Liu, Q.; Liu, W. K.; Lu, X. L.; Luo, M. X.; Ma, L. L.; Ma, Q. M.; Ma, Y.; Mao, Y. J.; Meng, Z. X.; Nerling, F.; Pacetti, S.; Pan, X.; Patteri, P.; Peters, K.; Pogodin, S.; Qi, T. Y.; Qian, S.; Qin, L. Q.; Qiu, J. F.; Salone, N.; Scodeggio, M.; Shen, H. F.; Shen, X. Y.; Shi, B. A.; Shi, H. C.; Song, J. J.; Sun, G. X.; Tian, Z. F.; Wang, D. Y.; Wang, J. P.; Wang, T. J.; Wang, Y. Q.; Wang, Yaqian; Wang, Z.; Wollenberg, L.; Wu, Y. J.; Xu, C. F.; Xu, Y. C.; Yan, L.; Yang, Y.; Yang, Z. W.; Yao, Z. P.; Yu, C. X.; Yuan, L.; Yuan, Y.; Zhai, X. Y.; Zhang, H. Y.; Zhang, J. Q.; Zhang, Lei; Zhang, P.; Zhang, Shuihan; Zhang, Shulei; Zhang, Z. L.; Zhao, Ling; Zheng, J. P.; Zheng, W. J.; Zhong, X.; Zhou, L. P.; Zhou, X.; Zhu, K.; Zhu, L.; Zhu, W. J.; Zou, J. H.
Physical review. D, 09/2023, Letnik: 108, Številka: 5Journal Article
The cross sections of the e+e–→$\phiη'$ process at center-of-mass energies from 3.508 to 4.951 GeV are measured with high precision using 26.1 fb–1 data collected with the BESIII detector operating at the BEPCII storage ring. The cross sections are of the order of a few picobarn and decrease as the center-of-mass energy increases as s–n/2 with n = 4.35 ± 0.14. This result is in agreement with the Nambu-Jona-Lasinio model prediction of n = 3.5 ± 0.9. In addition, the charmless decay $\psi$(3770)→$\phiη'$ is searched for by fitting the measured cross sections, yet no significant signal is observed. The upper limit of $\mathscr{B}$($\psi$(3770)→$\phiη'$) at the 90% confidence level is determined to be 2.3 × 10–5.
