3 papers
hep-ex2025
First measurement of the cross sections for at from 4.396 to 4.951 GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +701
Using collision data at 19 center-of-mass energies ranging from to corresponding to a total integrated luminosity of coll…
astro-ph.HE2025
Broadband -ray spectrum of supernova remnant Cassiopeia A
Zhen Cao, F. Aharonian, Y. X. Bai +311
The core-collapse supernova remnant (SNR) Cassiopeia A (Cas A) is one of the brightest galactic radio sources with an angular radius of 2.5 $\arcmin$. Although no extension…
hep-ex2020
Measurement of the Born cross sections for at center-of-mass energies between and GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +487
The Born cross sections for the process at different center-of-mass energies between and GeV are reported with improved precision fro…