Results of the Pion Beta Experiment
Preliminary results of the 1994 beam time.
In 1994, the Pibeta Collaboration studied the responses of an array of 25
CsI calorimeter modules to monoenergetic beam of positrons and electrons of
70, 50, 30 and 20 MeV/c.
The figure below is the response of the array to a beam of 70 MeV/c positrons.
Monte Carlo Simulated events have been superimposed on the data. The energy
resolution is 4.5 MeV.
9 Nov 94