We perform the first amplitude analysis of Ds+→π+π+π-π0 decays based on data samples of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7.33 fb-1. We report the observation of Ds+→f0(980)ρ(770)+ with a statistical significance greater than 10σ and determine the branching fractions B(Ds+→π+π+π-π0|non-η)=(2.04±0.08stat±0.05syst)% and B(Ds+→ηπ+)=(1.56±0.09stat±0.04syst)%. Moreover, we measure the relative branching fraction between φ→π+π-π0 and φ→K+K- to be [B(φ(1020)→π+π-π0)/B(φ(1020)→K+K-)]=0.230±0.014stat±0.010syst., which deviates from the world average value by more than 4σ.
Study of D + Ds^+ → f_0(980)\rho^+ and ϕπ^+ Decays through D^+_s → π + π + π − π0
Amoroso, A.;Bianchi, F.;Bortone, A.;Destefanis, M.;De Mori, F.;Greco, M.;Maggiora, M.;Marcello, S.;Sosio, S.;Spataro, S.;
2025-01-01
Abstract
We perform the first amplitude analysis of Ds+→π+π+π-π0 decays based on data samples of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7.33 fb-1. We report the observation of Ds+→f0(980)ρ(770)+ with a statistical significance greater than 10σ and determine the branching fractions B(Ds+→π+π+π-π0|non-η)=(2.04±0.08stat±0.05syst)% and B(Ds+→ηπ+)=(1.56±0.09stat±0.04syst)%. Moreover, we measure the relative branching fraction between φ→π+π-π0 and φ→K+K- to be [B(φ(1020)→π+π-π0)/B(φ(1020)→K+K-)]=0.230±0.014stat±0.010syst., which deviates from the world average value by more than 4σ.| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevLett.134.011904.pdf
Accesso aperto
Dimensione
358.49 kB
Formato
Adobe PDF
|
358.49 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



