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88 papers

hep-ex2026

Search for the charged lepton flavour violating decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +765

Based on events collected in collisions at GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Amplitude analysis and branching fraction measurement of the decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

An amplitude analysis of the decay is performed to determine the relative magnitudes and phases of different intermediate processes. The analysis uses $e^…

hep-ex2026

Observation of Polarization and Determination of Its Electric and Magnetic Moments in

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

The BESIII experiment observed the polarization of the hyperon Ξ(1530)^0 in ψ(3686)→Ξ(1530)^0 anti‑Ξ(1530)^0 decays and measured its electric and magnetic multipole moments via ang…

hep-ex2026

Strong and electromagnetic amplitudes, direct and isospin asymmetries in the decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

Using annihilation data collected at 26 center-of-mass energy points between 3000.00 and with the BESIII detector, corresponding to a total integrated…

hep-ex2026

Unexpected large relative strong phase and search for isospin breaking and asymmetries in $J/ψ\to K^*(892)\bar K

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

Using a direct scan of 26 energy points near the resonance, we perform the first measurement of the relative phase between the strong and electromagnetic ampli…

hep-ex2026

Study of the Magnetic Dipole Transition of via

BESIII Collaboration, M. Ablikim, M. N. Achasov +692

Using events collected with the BESIII detector at the BEPCII collider, we present the first amplitude analysis of