Speaker
Dennis Vadimovich Perepelitsa
(Brookhaven National Laboratory (US))
Description
Measurements of reconstructed jets in high-energy proton-nucleus
collisions over a wide rapidity and transverse momentum range are a
fundamental probe of the partonic structure of nuclei. Inclusive jet
production is sensitive to the modification of parton distribution
functions in the high-density nuclear environment. In the forward
direction and at small pT jets may even explore the transition from a
dilute to saturated partonic system. Furthermore, any modification of
jet production in p+A collisions has implications for our
understanding of the strong suppression seen in central A+A
collisions. We present the latest results on inclusive jet production
in 31/nb of proton-lead collisions at 5.02 TeV with the ATLAS detector
at the LHC. The centrality of p+Pb events is determined by applying
the Glauber model to the sum of the transverse energy in the Pb-going
forward calorimeter. The jet yields in central and peripheral p+Pb
collisions are found to be suppressed and enhanced, respectively,
relative to geometric expectations. Furthermore, the modifications at
all rapidities are seen to be consistent with a simple function of the
total jet energy.
| On behalf of collaboration: | ATLAS |
|---|
Primary author
Dennis Vadimovich Perepelitsa
(Brookhaven National Laboratory (US))
