Measurement of the KL nuclear interaction length in the NaI(Tl) calorimeter
Abstract
In the study of the reaction e+e- KSKL at the VEPP-2M e+e- collider with the SND detector the nuclear interaction length of KL meson in NaI(Tl) has been measured. Its value is found to be 30--50 cm in the KL momentum range 0.11--0.48 GeV/c. The results are compared with the values used in the simulation programs GEANT4 and UNIMOD.
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