We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions chi_c0,2 --> pi0 eta_c. The measurements are performed using 106x10^6 Psi(3686) events accumulated with the BESIII detector at the BEPCII e+e- collider at a center-of-mass energy corresponding to the Psi(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(chi_c0--> pi0 eta_c)<1.6x10-3 and B(chi_c2 --> pi0 eta_c)<3.2x10-3.
Searches for isospin-violating transitions chi_c0,2 --> pi0 eta_c
Garzia, I.;
2015
Abstract
We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions chi_c0,2 --> pi0 eta_c. The measurements are performed using 106x10^6 Psi(3686) events accumulated with the BESIII detector at the BEPCII e+e- collider at a center-of-mass energy corresponding to the Psi(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(chi_c0--> pi0 eta_c)<1.6x10-3 and B(chi_c2 --> pi0 eta_c)<3.2x10-3.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.


