Unintegrated parton distributions and pion production in $pp$ collisions at SPS and RHIC energies

Details Unintegrated parton distributions and pion production in $pp$ collisions at SPS and RHIC energies Unintegrated parton distributions and pion production in $pp$ collisions at SPS and RHIC energies

2005-09-27

arxiv.org/abs/nucl-th/0509078v2

Nucl.Phys. A774 (2006) 849-852

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures, a talk presented at the Quark Matter 2005 conference, Budapest, August 2005

Scientific paper

10.1016/j.nuclphysa.2006.06.149

Inclusive cross sections for pion production in $pp$ collisions are calculated for the first time fully based on unintegrated gluon, quark and antiquark distributions (uPDF). We use recently developed Kwieci\'nski uPDF's and different phenomenological fragmentation functions (FF) from the literature. In addition to the $gg \to g$ diagram we include also $g q \to q$ and $q g \to q$ diagrams for inclusive parton production. The cross section for pions is obtained then by convoluting the inclusive parton distributions and FFs. Applications for SPS and RHIC are shown.

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