| Combinatorial
background and rejection |
|
|
|
|
|
|
|
| • | Dominant sources of e+e--pairs:
p0-Dalitz decays and g-conversions |
|||||
| m<200 Mev/c2, small
opening angle |
||||||
| • | Two partially recognized low mass pairs
produce combinatorial background in |
|||||
| high
mass: need effective rejection |
||||||
| • | Most effective cut: pt>200
MeV/c |
|||||
| Double dE/dx
in SIDC1/2 |
| Kirill Filimonov, INPC 2001 |