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Autor:
Alexander Mitov, Michal Czakon
Publikováno v:
Nuclear Physics B. (1-2):111-135
We present the first exact analytic result for all partonic channels contributing to the total cross section for the production of a pair of heavy flavors in hadronic collisions in NLO QCD. Our calculation is an essential step in the derivation of th
Publikováno v:
Physics Letters B. (1):38-43
We discuss the longitudinal structure function in nuclear DIS at small $x$. We work within the framework of universal parton densities obtained in DGLAP analyses at NLO. We show that the nuclear effects on the longitudinal structure function closely
Autor:
Laurent Schoeffel
Publikováno v:
Physics Letters B. (1-3):33-39
We present a model of generalised parton distributions based on a forward ansatz in the DGLAP region. We discuss some aspects of the parametrisations, as the dependence in t, with factorised and non-factorised approaches, where t is the square of the
Autor:
Stefanos Leontsinis
Publikováno v:
EPJ Web of Conferences, Vol 81, p 04008 (2014)
The associated production of vector boson + prompt J/ψ is a key observable for understanding of quarkonium production mechanisms. Here we present the first evidence of such process and the measurement of its production rate. Relative contributions t