Tracklets
VTX
SPEC
•
•Vertex tracklets:
•Formed by 1st layer hits and second layer hits within:                                 | dh |  < 0.1
•
•
•Spectrometer  tracklets:
•Formed by 1st layer hits and second layer hits within:                             sqrt ( dh2 + df2 )  < 0.015
•
Counting in VTX and SPEC
was done independently