Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Study of untagged. gamma gamma. -->. pi. /sup +/. pi. /sup -/ at PEP

Thesis/Dissertation ·
OSTI ID:5880369
The two-photon reaction leading to ..pi../sup +/ ..pi../sup -/ was studied with untagged events in the PEP4 TPC detector with 55 pb/sup -1/ integrated luminosity at 29 GeV at PEP. The electron component of the QED background has been subtracted using the dE/dx particle identification in the TPC. This observed electron distribution has been used to understand the detector acceptance and in turn provide reliable muon background subtraction. The analysis of the mass and w..gamma.. width of the f/sup 0/ meson is presented. The pion high mass continuum is also discussed.
Research Organization:
California Univ., Riverside (USA)
OSTI ID:
5880369
Country of Publication:
United States
Language:
English