E-viri
PDF
Recenzirano
Odprti dostop
-
Ahmed, S.; Amoroso, A.; Ban, Y.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cetin, S. A.; Chen, S. J.; Chen, X. R.; Cheng, W. S.; Dai, X. C.; De Mori, F.; Dong, M. Y.; Fava, L.; Felici, G.; Greco, M.; Gu, Y. T.; Guo, L. B.; Heng, Y. K.; Himmelreich, M.; Hu, T.; Ikegami Andersson, W.; Janchiv, S.; Jiao, Z.; Jin, Y.; Kliemt, R.; Kupsc, A.; Lavezzi, L.; Leithoff, H.; Lellmann, M.; Li, C.; Li, F.; Li, J. Q.; Li, P. R.; Li, W. D.; Liu, C. X.; Liu, Feng; Liu, J. L.; Liu, S. B.; Liu, X.; Liu, Y. B.; Lu, J. D.; Luo, M. X.; Luo, T.; Lyu, X. R.; Maldaner, S.; Muramatsu, H.; Nakhoul, S.; Nefedov, Y.; Nerling, F.; Ning, Z.; Nisar, S.; Pan, X.; Qi, M.; Qi, T. Y.; Qin, Z. H.; Redmer, C. F.; Schnier, C.; Shan, X. Y.; Shi, H. C.; Spataro, S.; Su, P. P.; Sun, H. K.; Tang, J.; Teng, J. X.; Wang, H. J.; Wang, L. L.; Wang, X. L.; Wang, Y.; Wollenberg, L.; Xie, X. H.; Xu, G. F.; Xu, Y. C.; Yan, F.; Yang, Yifan; Yang, Zhi; Ye, M.; Ye, M. H.; Yu, T.; Yuan, L.; Yuan, Y.; Yue, C. X.; Zeng, Y.; Zhang, H. Y.; Zhang, J. Q.; Zhang, Jiawei; Zhang, Lei; Zhang, S. F.; Zhang, X. D.; Zhang, Z. Y.; Zhao, J. Z.; Zhao, Ling; Zhao, Q.; Zhao, Y. B.; Zhemchugov, A.; Zheng, Y.; Zhong, B.; Zhou, X.; Zhu, K. J.; Zhu, S. H.
The journal of high energy physics, 06/2021, Letnik: 2021, Številka: 6Journal Article
A bstract By using 6.32 fb − 1 of data collected with the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, we perform an amplitude analysis of the decay $$ {D}_s^{+}\to {K}_S^0{\pi}^{+}{\pi}^0 $$ D s + → K S 0 π + π 0 and determine the relative fractions and phase differences of different intermediate processes, which include $$ {K}_S^0\rho $$ K S 0 ρ (770) + , $$ {K}_S^0\rho $$ K S 0 ρ (1450) + , K * (892) 0 π + , K * (892) + π 0 , and K * (1410) 0 π + . With the detection efficiency based on the amplitude analysis results, the absolute branching fraction is measured to be $$ \mathrm{\mathcal{B}}\left({D}_s^{+}\to {K}_S^0{\pi}^{+}\pi 0\right)=\left(5.43\pm {0.30}_{\mathrm{stat}}\pm {0.15}_{\mathrm{syst}}\right)\times {10}^{-3} $$ ℬ D s + → K S 0 π + π 0 = 5.43 ± 0.30 stat ± 0.15 syst × 10 − 3 .
