Speaker
Dr
Hannu Paukkunen
(University of Jyväskylä)
Description
We present a perturbative QCD analysis concerning the production of high-pT
dijets in p+Pb collisions at the LHC. The next-to-leading order corrections, scale
variations and free-proton PDF uncertainties are found to have only a relatively
small influence on the normalized dijet rapidity distributions. Interestingly, however, these novel observables prove to retain substantial sensitivity to the nuclear effects in the PDFs. Especially, they serve as a more robust probe of the nuclear gluon densities at x > 0.01, than e.g. the inclusive hadron production. We confront our calculations with the recent data by the CMS collaboration. These preliminary data lend striking support to the gluon antishadowing similar to that in the EPS09 nuclear PDFs.
Author
Dr
Hannu Paukkunen
(University of Jyväskylä)
Co-authors
Carlos Albert Salgado Lopez
(Universidade de Santiago de Compostela (ES))
Kari J. Eskola
(University of Jyvaskyla)
