10–15 Sept 2012
Puerto del Carmen, Lanzarote
Europe/Lisbon timezone

Production of one and two $c \bar c$ pairs at LHC

13 Sept 2012, 10:10
20m
Puerto del Carmen, Lanzarote

Puerto del Carmen, Lanzarote

Canary Islands (Spain)
Talk at plenary session Progress in QCD Progress in QCD (I)

Speaker

Prof. Antoni Szczurek (Institute of Nuclear Physics PAN)

Summary

We discuss charm production at LHC. The production of single $c \bar c$ pairs
is calculated in the $k_t$-factorization approach. We use several
unintegrated gluon distributions from the literature. Some of them
include effect of small-$x$ staturation and fullfil Balitsky-Kovchegov
evolution equation. The hadronization is included with the help of
fragmentation functions found for the production of $c$ ($\bar c$) in $e^+ e^-$ collisions. Differential distributions for several
charmed mesons will be presented and compared to recent results of the ALICE
and LHCb collaborations. Some missing strength is identified.
Different schemes of fragmentation are discussed. (...)

Primary author

Prof. Antoni Szczurek (Institute of Nuclear Physics PAN)

Presentation materials