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- Title
Amplitude analysis and branching-fraction measurement of Ds+→KS0π+π0.
- Authors
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, X. H.; Bai, Y.; Bakina, O.; Baldini Ferroli, R.; Balossino, I.; Ban, Y.; Begzsuren, K.; Berger, N.; Bertani, M.; Bettoni, D.; Bianchi, F.
- Abstract
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)0π+, K*(892)+π0, and K*(1410)0π+. 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 .
- Publication
Journal of High Energy Physics, 2021, Vol 2021, Issue 6, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP06(2021)181