Energy Calibration of the BaBar EMC Using the Pi0 Invariant Mass Method

Tanner, David J. ; U., /Manchester

Stanford Linear Accelerator Center

关键词: Calibration;    Photons;    Calorimeters;    Statistics Instrumentation,Inst;    Instrumentation,Inst;   

DOI  :  10.2172/901853
RP-ID  :  SLAC-R-850
RP-ID  :  AC02-76SF00515
RP-ID  :  901853

美国|英语

来源: UNT Digital Library

【 摘 要 】

The BaBar electromagnetic calorimeter energy calibration method was compared with the local and global peak iteration procedures, of Crystal Barrel and CLEO-II. An investigation was made of the possibility of {Upsilon}(4S) background reduction which could lead to increased statistics over a shorter time interval, for efficient calibration runs. The BaBar software package was used with unreconstructed data to study the energy response of the calorimeter, by utilizing the {pi}{sup 0} mass constraint on pairs of photon clusters.