Using a sample of about 10 billion J/ψ events with the BESIII detector, we search for the weak decays of J/ψ→D¯0π0+c.c., J/ψ→D¯0η+c.c., J/ψ→D¯0ρ0+c.c., J/ψ→D-π++c.c., and J/ψ→D-ρ++c.c.. Since no significant signal is observed, we set the upper limits of the branching fractions of these decays to be B(J/ψ→D¯0π0+c.c.)<4.7×10-7, B(J/ψ→D¯0η+c.c.)<6.8×10-7, B(J/ψ→D¯0ρ0+c.c.)<5.2×10-7, B(J/ψ→D-π++c.c.)<7.0×10-8, and B(J/ψ→D-ρ++c.c.)<6.0×10-7 at the 90% confidence level.
Search for J/ψ weak decays containing a D meson
Garzia, I.;Gramigna, S.;
2024
Abstract
Using a sample of about 10 billion J/ψ events with the BESIII detector, we search for the weak decays of J/ψ→D¯0π0+c.c., J/ψ→D¯0η+c.c., J/ψ→D¯0ρ0+c.c., J/ψ→D-π++c.c., and J/ψ→D-ρ++c.c.. Since no significant signal is observed, we set the upper limits of the branching fractions of these decays to be B(J/ψ→D¯0π0+c.c.)<4.7×10-7, B(J/ψ→D¯0η+c.c.)<6.8×10-7, B(J/ψ→D¯0ρ0+c.c.)<5.2×10-7, B(J/ψ→D-π++c.c.)<7.0×10-8, and B(J/ψ→D-ρ++c.c.)<6.0×10-7 at the 90% confidence level.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevD.110.032020.pdf
accesso aperto
Descrizione: Full text editoriale
Tipologia:
Full text (versione editoriale)
Licenza:
Creative commons
Dimensione
538.28 kB
Formato
Adobe PDF
|
538.28 kB | Adobe PDF | Visualizza/Apri |
I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
