Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-11-11
Physics
High Energy Physics
High Energy Physics - Experiment
to be Published in "EPIC@LHC - International Workshop on Early Physics with heavy-Ion Collisions at LHC, Bari July, 2011"
Scientific paper
The ATLAS detector is capable of resolving the highest energy pp collisions at luminosities sufficient to yield 10's of simultaneous interactions within a bunch collision lasting <0.5 nsec. Already in 2011 a mean occupancy of 20 is often found in pp running. In 2004 studies by ATLAS showed that the detector would have excellent performance also for the foreseeable particle multiplicities in the highest energy p-Pb and Pb-Pb collisions that the LHC will produce. These studies resulted in a letter of intent to the LHC committee by ATLAS to do physics with these beams also. In the past 2 years of data taking, ATLAS detector performance studies have confirmed these expectations at the actual multiplicities presented below. The ATLAS program removes an artificial specialization that arose about 30 years ago in high energy physics when the energy and intensity frontier moved to colliders. Before that time, for example, the same experiment that discovered the $\Upsilon$ (CFS and E605 at Fermilab) also measured the nuclear modification factor in the production of high $p_T$ identified charged hadrons using nuclear targets from Beryllium through Tungsten.
No associations
LandOfFree
ATLAS Results from the first Pb-Pb Collisions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with ATLAS Results from the first Pb-Pb Collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ATLAS Results from the first Pb-Pb Collisions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-140012