13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Influence of final-state radiation on heavy-flavour observables in pp collisions

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Open heavy flavour Poster Session

Speaker

Luuk Vermunt (Utrecht University (NL))

Description

Initial- and final-state radiation are important processes for the physical interpretation of high-energy collisions at the Large Hadron Collider. Calculations of these perturbative QCD corrections are, however, limited to probabilistic approximations using parton shower approaches in event generators. Although this Monte-Carlo DGLAP description is nowadays state-of-the-art, there still exist significant differences on the quantitative level. To address these open questions, it is important to investigate final-state radiation processes experimentally by identifying sensitive observables.

In this study, a new transverse momentum correlation observable, the momentum imbalance between D and Dbar mesons, is identified as a sensitive tool to study final-state radiation. This is shown by using simulations with the EPOS3+HQ model and the event generator Pythia 6. The presented results will focus on heavy-flavour particles only because these are most likely pair-produced in the initial stages of the collision. With the upcoming detector upgrades for LHC Run-3, statistically significant correlation measurements of these heavy-flavour particles will become feasible. In the end, this method can be extended to pA and AA data to study several aspects of energy loss in heavy-ion collisions.

Content type Theory
Centralised submission by Collaboration Presenter name already specified

Primary author

Luuk Vermunt (Utrecht University (NL))

Co-authors

Joerg Aichelin (Subatech, Nantes) Pol-Bernard Gossiaux (Subatech, Nantes) Andre Mischke (Utrecht University (NL))

Presentation Materials