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Spin-Parity Analysis of ppbar Mass Threshold Structure in J/psi and psi' Radiative Decays
BESIII Collaboration
A partial wave analysis of the mass-threshold enhancement in the reaction is used to determine: its quantum numbers to be ; i…
Search for decays into vector meson pairs
The BESIII Collaboration
The processes $\etacpto ρ^{0}ρ^{0}$, , and are searched for using a sample of $\psip$ events collected with the BESIII detector at the B…
Higher-order multipole amplitude measurement in
BESIII Collaboration
Using events collected with the BESIII detector at the BEPCII storage ring, the higher-order multipole amplitudes in the radiative transition $ψ(2S)\toγχ_{c…
Search for a light exotic particle in J/psi radiative decays
BESIII Collaboration
Using a data sample containing 1.06x10^8 psi' events collected with the BESIII detector at the BEPCII electron-positron collider, we search for a light exotic particle X in the pro…
Observation of two charged bottomonium-like resonances in Y(5S) decays
the Belle Collaboration
We report the observation of two narrow structures in the mass spectra of the pi+-Y(nS) (n=1,2,3) and pi+-hb(mP)(m$ (m=1,2) pairs that are produced in association with a single cha…
Search for Lepton-number-violating B+->D-l+l'+ Decays
O. Seon, Y. J. Kwon, T. Iijima
We perform the first search for lepton-number-violating B+->D-l+l'+ decays, where l and l' stand for e or mu, using 772 x 10^6 BB-bar pairs accumulated at the Upsilon(4S) resonance…