XXVII International Workshop on Deep Inelastic Scattering and Related Subjects

Hadroproduction of open heavy flavour for PDF analyses

11 Apr 2019, 10:45

25m

Rettorato - Sala Athenaeum

Parallel Session Talk WG5: Physics with Heavy Flavours WG5: Physics with Heavy Flavours

Speaker

Hannu Paukkunen (University of Jyväskylä)

Description

Due to the large masses of the charm and bottom quarks, their production cross sections are calculable within the perturbative QCD. This makes the heavy-quark mesons important observables in high-energy collisions of protons and nuclei. However, the available calculations for heavy-flavored-meson hadroproduction have been somewhat problematic in reliably describing the cross sections across the full kinematic range from zero to very high $p_{\mathrm{T}}$. This has put some question marks on the robustness of LHC heavy-flavored-meson measurements in studying the partonic structure of the colliding hadrons and nuclei. Here, we introduce SACOT-$m_{\mathrm{T}}$ - a novel scheme for open heavy-flavour hadroproduction within the general-mass variable-flavour-number formalism, that solves this problem. The introduced scheme is an analogue of the SACOT-$\chi$ scheme in deeply-inelastic scattering and thereby well suited for PDF analyses.

Presentation materials

GMVFNS_Paukkunen.pdf