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hep-ex2025

Search for in decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Based on a sample of events collected by the BESIII detector operating at the BEPCII collider, an analysis of the decay $ψ(3686)\toγχ_{cJ}, χ_{cJ}\toηηη…

hep-ex2024

Measurement of the Branching Fraction for the Decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Using events collected by the BESIII detector operating at the BEPCII collider, we present the first observations of the decays $χ_{cJ}(J=0,1,2…

hep-ex2024

Amplitude analysis and branching fraction measurement of the Cabibbo-favored decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +657

An amplitude analysis of the Cabibbo-favored decay is performed, using 7.93 of collision data collected with the BESIII detector at t…

hep-ex2024

Search for lepton number violating decays of

BESIII Collaboration, M. Ablikim, M. N. Achasov +655

Based on 7.33 fb of collision data collected by the BESIII detector operating at the BEPCII collider at center-of-mass energies from 4.128 to 4.226 GeV, a search fo…

hep-ex2024

Measurement of the Branching Fraction of \boldmath{}

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Based on events, 7.9 fb data, and 0.8 fb off-resonance data samples collected with the BESIII detector, we measure the b…