First Year of BABAR/PEP-II - Harvard University Laboratory for ...
First Year of BABAR/PEP-II - Harvard University Laboratory for ...
First Year of BABAR/PEP-II - Harvard University Laboratory for ...
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DIRC Per<strong>for</strong>mance<br />
240<br />
220<br />
200<br />
180<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
BaBar<br />
Resolution: 3.0 mrad<br />
Bhabha events<br />
810 820 830 840 850 860<br />
Cherenkov Angle (mrad)<br />
Principle proven. More work needed to achieve σ = 2 mrad.<br />
◆ Background from scattered photons. Association algorithm.<br />
<strong>First</strong> <strong>Year</strong> <strong>of</strong> BaBar/<strong>PEP</strong>-<strong>II</strong> Masahiro Morii SLAC
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