Leading twist nuclear shadowing: theory, observations, perspectives

by Mark Strikman

Friday 25 Oct 2013, 11:00 → 12:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Use of the QCD factorization theorems for inclusive and diffractive cross sections and  the  S-channel unitarity allowed us  to develop the  theory of the leading twist (LT) shadowing  and make predictions for nuclear pdfs,  various small x nuclear hard phenomena as well as to  estimate uncertainties of these predictions. Complementarity of the space –time pictures of LT shadowing in the fast and rest frames of the nucleus  is   explained. We  argue  that the recent ALICE data on coherent and incoherent production of J/psi test both the overall strength of LT shadowing and the  presence of the large fluctuations of the gluon fields responsible for the shadowing.  Perspectives of future studies of LT shadowing phenomena at the LHC are outlined as well as possible strategies for looking for break up of the LT  approximation and onset of the black disk regime.

Poster Poster.pdf

Slides shadowing_cern13.pdf