Accès ouvert
2026
preprint
OpenAlex
BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres
We report the precise energy scan measurement of the cross section lineshape of $ψ(2S)\to K^{+}K^{-}$. The analysis is based on $e^{+}e^{-}$ collision data corresponding to an integrated luminosity of 495~pb$^{-1}$ collected with the BESIII detector at BEPCII. By analyzing the cross section …
Accès ouvert
2026
preprint
OpenAlex
BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres
We report the precise energy scan measurement of the cross section lineshape of $ψ(2S)\to K^{+}K^{-}$. The analysis is based on $e^{+}e^{-}$ collision data corresponding to an integrated luminosity of 495~pb$^{-1}$ collected with the BESIII detector at BEPCII. By analyzing the cross section …
Accès ouvert
2026
preprint
OpenAlex
BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres
By analysing 6.1 ${\rm fb}^{-1}$ of data collected at center-of-mass energies between $\sqrt{s}=4.600$ and 4.843 $\rm GeV$ with the BESIII detector at the BEPCII collider, we observe the decay $Λ_c^+\to nπ^+η$ for the first time with a statistical significance of $9.5σ$. The …