PPT Slide
PHOBOS @ RHIC
PHOBOS spectrometer
Geometrical acceptance
1 unit in h
eg. for vertex at z=0:
0.5< h ?.5 and
2 x11o in j (azimuthal)
=> 1% of the particles
are covered
11 planes of silicon
detectors in each arm
with decreasing
segmentation
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