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.
Amplitude analysis and branching-fraction measurement of D-s(+) -> K-S(0)pi(+)pi(0)
I. Garzia;M. Scodeggio;
2021
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 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.File in questo prodotto:
File | Dimensione | Formato | |
---|---|---|---|
JHEP06(2021)181.pdf
accesso aperto
Descrizione: versione editoriale
Tipologia:
Full text (versione editoriale)
Licenza:
Creative commons
Dimensione
685.45 kB
Formato
Adobe PDF
|
685.45 kB | Adobe PDF | Visualizza/Apri |
I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.