# XXVII International Workshop on Deep Inelastic Scattering and Related Subjects

Apr 8 – 12, 2019
Turin
Europe/Rome timezone

## Hadroproduction of open heavy flavour for PDF analyses

Apr 11, 2019, 10:45 AM
25m
Rettorato - Sala Athenaeum

### Rettorato - Sala Athenaeum

Via Verdi, 8 Turin
Parallel Session Talk 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 $p_{\rm T}$. 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-$m_{\rm T}$ - 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.

### Primary authors

Hannu Paukkunen (University of Jyväskylä) Ilkka Helenius (University of Jyväskylä)