Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-11-19
PoS LHC07:034,2007; Eur.Phys.J.ST 155:191-200,2008
Physics
Nuclear Physics
Nuclear Theory
an invited talk at the Memorial Workshop on Hadronic and Quark Matter devoted to J.Zimanyi, Budapest, July 2-4, 2007
Scientific paper
10.1140/epjst/e2008-00601-7
We discuss correlations in azimuthal angle as well as correlations in two-dimensional space of transverse momenta of two jets as well as photon and jet. Some $k_t$-factorization subprocesses are included for the first time in the literature. Different unintegrated gluon/parton distributions are used in the $k_t$-factorization approach. The results depend on UGDF/UPDF used. The collinear NLO $2 \to 3$ contributions dominate over $k_t$-factorization cross section at small relative azimuthal angles as well as for asymmetric transverse momentum configurations.
Pietrycki Tomasz
Rybarska Anna
Slipek Gabriela
Szczurek Antoni
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