We present the first search for the semileptonic decay D-s(+) -> pi(0)e(+)nu(e) using a data sample of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, corresponding to an integrated luminosity of 6.32 fb(-1). This decay is expected to be sensitive to pi(0)-eta mixing. No significant signal is observed. We set an upper limit of 6.4 x 10(-5) on the branching fraction at the 90% confidence level.
Search for the semileptonic decay D-s(+) -> pi(0)e(+)nu(e)
Amoroso, A;Bianchi, F;Bortone, A;Destefanis, M;De Mori, F;Greco, M;Hu, JF;Lavezzi, L;Maggiora, M;Marcello, S;Rivetti, A;Sosio, S;Spataro, S;
2022-01-01
Abstract
We present the first search for the semileptonic decay D-s(+) -> pi(0)e(+)nu(e) using a data sample of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, corresponding to an integrated luminosity of 6.32 fb(-1). This decay is expected to be sensitive to pi(0)-eta mixing. No significant signal is observed. We set an upper limit of 6.4 x 10(-5) on the branching fraction at the 90% confidence level.
File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
PhysRevD.106.112004.pdf
Accesso aperto
Descrizione: Articolo
Tipo di file:
PDF EDITORIALE
Dimensione
522.97 kB
Formato
Adobe PDF
|
522.97 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
