Measurement of charged jet production cross sections and nuclear modification in p-Pb collisions at
详细信息    查看全文
文摘
Charged jet production cross sections in p–Pb collisions at View the MathML source measured with the ALICE detector at the LHC are presented. Using the anti-a66ecfc276a65840ff350cbc7" title="Click to view the MathML source">kT algorithm, jets have been reconstructed in the central rapidity region from charged particles with resolution parameters R=0.2 and R=0.4. The reconstructed jets have been corrected for detector effects and the underlying event background. To calculate the nuclear modification factor, RpPb, of charged jets in p–Pb collisions, a pp reference was constructed by scaling previously measured charged jet spectra at View the MathML source. In the transverse momentum range View the MathML source, RpPb is found to be consistent with unity, indicating the absence of strong nuclear matter effects on jet production. Major modifications to the radial jet structure are probed via the ratio of jet production cross sections reconstructed with the two different resolution parameters. This ratio is found to be similar to the measurement in pp collisions at View the MathML source and to the expectations from PYTHIA pp simulations and NLO pQCD calculations at View the MathML source.
NGLC 2004-2010.National Geological Library of China All Rights Reserved.
Add:29 Xueyuan Rd,Haidian District,Beijing,PRC. Mail Add: 8324 mailbox 100083
For exchange or info please contact us via email.