15 papers · 1 filter
First Measurement of the Relative Phase between Proton Psionic Form Factors
BESIII Collaboration, M. Ablikim, M. N. Achasov +754
The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…
Search for an isoscalar partner of the in
BESIII Collaboration, M. Ablikim, M. N. Achasov +684
Using a data sample corresponding to an integrated luminosity of 20.3 fb collected at center-of-mass energies from 4.18 to 4.95 GeV with the BESIII detector, we observe the…
Observation of a New Excited State in
BESIII Collaboration, M. Ablikim, M. N. Achasov +681
Using a data sample of events collected with the BESIII detector, a partial-wave analysis of is performed. A new…
First observation of the decay
BESIII Collaboration, M. Ablikim, M. N. Achasov +761
Using events collected with the BESIII detector at the BEPCII collider, we report the first observation of the decay . T…
Study of - Annihilation into Light Mesons
BESIII Collaboration, M. Ablikim, M. N. Achasov +758
The annihilation of - into light mesons is studied using events collected with the BESIII detector at the BEPCII storage ring. The $\…
Search for through the process
BESIII Collaboration, M. Ablikim, M. N. Achasov +763
Using data samples corresponding to an integrated luminosity of 0.9~fb collected with the BESIII detector operating at the BEPCII storage ring at the center-of-mass energies…