Measurement of the $K_L$ nuclear interaction length in the NaI(Tl) calorimeter
arXiv:1509.01918 · doi:10.1088/1748-0221/10/09/P09006
Abstract
In the study of the reaction $e^+e^-\to K_{S}K_{L}$ at the VEPP-2M $e^+e^-$ collider with the SND detector the nuclear interaction length of $K_{L}$ meson in NaI(Tl) has been measured. Its value is found to be 30--50 cm in the $K_{L}$ momentum range 0.11--0.48 GeV/$c$. The results are compared with the values used in the simulation programs GEANT4 and UNIMOD.
accepted in JINST