TY - JOUR
T1 - Amplitude analysis and branching-fraction measurement of Ds+→KS0π+π0
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Kalantar-Nayestanaki, N.
AU - Kappert, R.
AU - Kavatsyuk, M.
AU - Messchendorp, Johan
AU - Rodin, V.
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2022/6
Y1 - 2022/6
N2 - 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 Ds+→KS0π+π0 and determine the relative fractions and phase differences of different intermediate processes, which include KS0ρ(770)+, KS0ρ(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(Ds+→KS0π+π0)=(5.43±0.30stat±0.15syst)×10−3. [Figure not available: see fulltext.]
AB - 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 Ds+→KS0π+π0 and determine the relative fractions and phase differences of different intermediate processes, which include KS0ρ(770)+, KS0ρ(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(Ds+→KS0π+π0)=(5.43±0.30stat±0.15syst)×10−3. [Figure not available: see fulltext.]
KW - Branching fraction
KW - Charm physics
KW - e-e Experiments
UR - http://www.scopus.com/inward/record.url?scp=85109165419&partnerID=8YFLogxK
U2 - 10.1007/JHEP06(2021)181
DO - 10.1007/JHEP06(2021)181
M3 - Article
SN - 1126-6708
VL - 2022
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 6
M1 - 181
ER -