Now showing items 1-10 of 14
Observation of pseudoscalar and tensor resonances in J/?›???
Based on a sample of (1310.6±10.5)×106 J/? events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/?›??? is performed in order to study the intermediate states. ...
Search for the weak decay ?'›K±?± and precise measurement of the branching fraction B(J/?›??')
We present the first search for the rare decay of ?' into K±?± in J/?›??', using a sample of 1.3×109 J/? events collected with the BESIII detector. No significant signal is observed, and the upper limit at the 90\% confidence ...
Measurement of the Ds<(+)-> l(+)ve branching fractions and the decay constant fDs+
(University of Groningen, 2016)
Study of ? decays to the ?-?¯+ and ?(1385)±?¯(1385)± final states
We study the decays of the charmonium resonances J/? and ?(3686) to the final states ?-?¯+, ?(1385)±?¯(1385)± based on a single baryon tag method using data samples of (223.7±1.4)×106 J/? and (106.4±0.9)×106 ?(3686) events ...
Observation of e+e-›??c1,2e+e-›??c1,2 near s?s = 4.42 and 4.6 GeV
BEPC-BES. Based on data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s?>s> 4.4 GeV, the processes e+e-›??c1,2e+e-›??c1,2 are observed for the first time. With ...
Study of J/Psi -> p(p)over-bar phi at BESIII
Using a data sample of 1.31×109 J/? events accumulated with the BESIII detector, the decay J/?›pp¯? is studied via two decay modes, ?›KS0KL0 and ?›K+K-. The branching fraction of J/?›pp¯? is measured to be B(J/?›pp¯?)=[5 ...
Search for a light CP-odd Higgs boson in radiative decays of J/psi
We search for a light Higgs boson A0 in the fully reconstructed decay chain of J/?›?A0, A0›µ+µ- using (225.0±2.8)×106 J/? events collected by the BESIII experiment. The A0 is a hypothetical CP-odd light Higgs boson predicted ...
Observation of hc radiative decay hc › ??' and evidence for hc › ??
A search for radiative decays of the P-wave spin singlet charmonium resonance hc is performed based on 4.48 × 108 ? events collected with the BESIII detector operating at the BEPCII storage ring. Events of the reaction ...