Author/Authors :
Jones، نويسنده , , R.T. and Kornicer، نويسنده , , M. and Dzierba، نويسنده , , A.R. and Gunter، نويسنده , , J.L. and Lindenbusch، نويسنده , , R. and Scott، نويسنده , , E. and Smith، نويسنده , , P. and Steffen، نويسنده , , C. and Teige، نويسنده , , S. and Rubin، نويسنده , , P. and Smith، نويسنده , , E.S.، نويسنده ,
Abstract :
We describe a method for calibration of a lead-glass calorimeter that does not require a beam of known energy. The technique was used to calibrate the radphi lead-glass calorimeter at Jefferson Lab. The technique described can be applied to any segmented electromagnetic calorimeter capable of detecting all-photon decays of mesons, for example, π 0 → 2 γ , η → 2 γ or ω → π 0 γ . We also demonstrate how the measured 2 γ mass width of the π 0 and η mesons can be unfolded to extract the single-shower energy and position resolution functions of the calorimeter.
Keywords :
Photoproduction , meson , radiative , Decay , PHI , Radphi , Calorimeter , Calibration
