Using e+e-annihilation data corresponding to a total integrated luminosity of 6.32 fb-1 collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay Ds+→KS0KS0π+ for the first time. An enhancement is observed in the KS0KS0 mass spectrum near 1.7 GeV/c2, which was not seen in Ds+→K+K-π+ in an earlier work, implying the existence of an isospin one partner of the f0(1710). The branching fraction of the decay Ds+→KS0KS0π+ is determined to be B(Ds+→KS0KS0π+)=(0.68±0.04stat±0.01syst)%.
Study of the decay Ds+ → KS0 KS0 π+ and observation of an isovector partner to f0 (1710)
Amoroso A.
;Bianchi F.
;Bortone A.
;Destefanis M.
;De Mori F.
;Fava L.
;Greco M.
;Hu J. F.
;Lavezzi L.
;Maggiora M.
;Marcello S.
;Rivetti A.
;Sosio S.
;Spataro S.
;Yan L.
;
2022-01-01
Abstract
Using e+e-annihilation data corresponding to a total integrated luminosity of 6.32 fb-1 collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay Ds+→KS0KS0π+ for the first time. An enhancement is observed in the KS0KS0 mass spectrum near 1.7 GeV/c2, which was not seen in Ds+→K+K-π+ in an earlier work, implying the existence of an isospin one partner of the f0(1710). The branching fraction of the decay Ds+→KS0KS0π+ is determined to be B(Ds+→KS0KS0π+)=(0.68±0.04stat±0.01syst)%.File in questo prodotto:
File | Dimensione | Formato | |
---|---|---|---|
PhysRevD.105.L051103.pdf
Accesso aperto
Dimensione
649.14 kB
Formato
Adobe PDF
|
649.14 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.