Amplitude analysis and branching-fraction measurement of Ds+→KS0π+π0

Amplitude analysis and branching-fraction measurement of Ds+→KS0π+π0

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 + → K S 0 π + π 0 and determine the relative fractions and phase differences of different intermediate processes, which...

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Veröffentlicht in:The journal of high energy physics 2021-06, Vol.2021 (6)
Hauptverfasser: Bai, X. H., Bai, Y., Ban, Y., Boyko, I., Cai, X., Cetin, S. A., Chelkov, G., Chen, S. J., Dedovich, D., Denig, A., Ding, Y., Fang, J., Fang, Y., Felici, G., Gao, Y. G., Gersabeck, E. M., Gong, L., Gu, M. H., Gu, Y. T., Guo, L. B., Ikegami Andersson, W., Irshad, M., Janchiv, S., Ji, X. L., Kang, X. S., Kiuchi, R., Kolcu, O. B., Kupsc, A., Larin, P., Lavania, A., Lei, Z. H., Leithoff, H., Li, C., Li, Cheng, Li, G., Li, H. B., Li, H. J., Li, J. S., Li, P. R., Li, X. L., Liang, H., Liu, K. Y., Liu, M. H., Liu, Shuai, Liu, Z. Q., Lou, X. C., Luo, P. W., Ma, Q. M., Maas, F. E., Mitchell, R. E., Muchnoi, N. Yu, Muramatsu, H., Nefedov, Y., Pan, X., Pan, Y., Peters, K., Ping, R. G., Prasad, V., Qi, K. H., Qi, T. Y., Rashid, K. H., Shao, M., Shen, C. P., Shen, P. X., Shi, X., Song, W. M., Sosio, S., Sun, Y. K., Tang, J., Wang, K., Wang, M., Wang, X. F., Wang, Y., Wang, Ziyi, Wen, S. P., White, D. J., Wiedner, U., Xia, L., Xu, Y. C., Yan, L., Yang, S. L., Yang, Y. X., Yang, Yifan, You, Z. Y., Yuan, L., Zhang, Guangyi, Zhang, H. H., Zhang, L. M., Zhang, S. F., Zhang, Yan, Zhao, J. Y., Zhao, Lei, Zhao, M. G., Zhao, Z. G., Zhou, L. P., Zhou, Q., Zhou, X. K., Zhu, A. N., Zhu, W. J., Zou, J. H.
Format: Artikel
Sprache:eng
Schlagworte:
Amplitudes
Candidates
Classical and Quantum Gravitation
Collaboration
Elementary Particles
High energy physics
Hypotheses
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Experimental Physics
Relativity Theory
Sensors
String Theory
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Beschreibung
Zusammenfassung: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 + → K S 0 π + π 0 and determine the relative fractions and phase differences of different intermediate processes, which include K S 0 ρ (770) + , 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 ℬ D s + → K S 0 π + π 0 = 5.43 ± 0.30 stat ± 0.15 syst × 10 − 3 .
ISSN:1029-8479
DOI:10.1007/JHEP06(2021)181