Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-06-02
Nucl.Phys.B454:3-24,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pages, Latex, epsfig, 19 tar-gzip-uuencoded figures. Also available from http://surya11.cern.ch/users/nason/misc
Scientific paper
10.1016/0550-3213(95)00445-X
We compute pseudorapidity and transverse momentum distributions for charm and bottom production at HERA. We examine the effect of next-to-leading order QCD corrections, the effect of possible intrinsic transverse momenta of the incoming partons, and of fragmentation. We compare our results with full Monte Carlo simulation using HERWIG. The importance of the hadronic component of the photon is also studied. We examine the possibility to distinguish among different parametrizations of the photon parton densities using charm production data, and the possibilty to extract information about the small-$x$ behaviour of the gluon density of the proton. We also give a prediction for the transverse momentum and pseudorapidity distributions for bottom production at HERA.
Frixione Stefano
Nason Paolo
Ridolfi Giovanni
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