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Two views of one of the first
full-energy collisions between gold ions at Brookhaven Lab's
Relativistic Heavy Ion Collider, as captured by the Solenoidal
Tracker At RHIC (STAR) detector. The tracks indicate the paths
taken by thousands of subatomic particles produced in the
collisions as they pass through the STAR Time Projection Chamber,
a large, 3-D digitial camera. |
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PHENIX event display
showing PHENIX's new muon tracking and muon identification
detectors. The magenta, yellow, and green lines along with the red
dots represent hits in the detector, while the blue lines
represent identified muons.
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An
event display showing particles emerging from collisions and
striking the pad chamber detectors (green area) and Time-of-Flight
detectors (gray area) in the two "central" arms of PHENIX, one of RHIC's large experiments. Several hundred particle
tracks are seen in this display. The collision took place at the
center of the image.
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This
image also includes drift chamber hits (yellow), drift chamber
track projections showing the collision vertex (cyan),
time-expansion chamber particle tracks (purple dots on the left),
calorimeter hits (white dots on the right and left), and beam-beam
counter hits (yellow cylinder just >left of center) to the pad
chamber and time-of-flight detector hits.
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PHENIX
event display showing drift chamber detector hits (blue and green
dots) and particle tracks (blue lines). This display shows that
most of the particle tracks originate from the collision point in
the center of the image. |
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A
spectacular gold-gold collision at the maximum RHIC energy as seen
by the Phobos detector. Phobos consists of a cylindrical array of
silicon detectors and two spectrometer arms surrounding the
interaction region where the gold nuclei collide. Colored dots
show the locations where silicon was struck by the thousands of
produced particles. The red lines are reconstructed trajectories
of some of those particles. |
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A
graph from RHIC's BRAHMS detector representing how close together
in time particles emerging from each collision strike two Zero
Degree Calorimeters (ZDC) situated opposite each other along the
beam path, 20 meters from the collision point. The central peak at
zero nanoseconds (ns) indicates the number of collisions happening
at a point equidistant from the two ZDCs. |
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