Search for new effects in e/sup +/e/sup -/ interactions Page: 5 of 32
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rPHOTOTUBES
M.W.P.C. CHAMBERS
« I meter ... •* ■
Fig. 3. The generic Rhainn deluclor ax illustrated by the Crystal Ball detector.
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tf a°6
?i 0.04
0.02
t—r-r
“i I
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Fig. 4. Comparison, in the MAC detector, of data (solid
circles) and Monte Carlo (histogram) for distributions of
transverse energy, Ei, and energy asymmetry, 1.
efficiency is well understood, A large acceptance of the detector allows for a
large hadronic efficiency, and the ability to observe most of the event. Under
such conditions, it is unlikely that the experimenters will be mislead by errant
Monte Carlo’s, and even libera) error estimates on Monte Carlo parameters
yield only a small contribution to the overall systematic error. Figure f> illus-
trates the advantage of good calorimetry. This example from the Crystal Ball
collaboration*) demonstrates the ease of separating certain types of background.
Using simple calorametric variables obtained from only the energies and angles
from each of the approximately 700 Na!(Tl) elements of the detector, an almost
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Bloom, E.D. Search for new effects in e/sup +/e/sup -/ interactions, article, May 1, 1985; California. (https://digital.library.unt.edu/ark:/67531/metadc1066519/m1/5/: accessed April 30, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.