22-29 July 2015
Europe/Vienna timezone

Quarkonium and heavy flavour production measurements at ATLAS

Jul 23, 2015, 9:15 AM
15m
talk QCD and Hadronic Physics QCD and Hadronic Physics

Speaker

Stefanos Leontsinis (National Technical Univ. of Athens (GR))

Description

We present a large number of detailed measurements of the production of various open and hidden charm (D meson, J/psi, psi(2s), chi_c) states at the ATLAS experiment at centre- of-mass energies of 2.76 TeV, 7 TeV, and 8 TeV. The total charm production cross-section at the LHC is also determined. These measurements extend in reach and precision beyond those currently available, and we compare these measurements to a variety of the latest theoretical predictions. We also present new measurements of the associated production of quarkonium with a vector boson or an additional quarkonium state using the ATLAS Run-1 dataset. These rare processes provide new insight into QCD models of quarkonium production, but also provide new opportunities to study double parton scattering, including cross-section measurements in single and double parton scattering dominated regimes and a precise assessment of the sigma_eff parameter governing the effective spatial area of parton-parton interactions at a variety of energy scales.

Primary author

Judith Katzy (DESY, HAMBURG)

Presentation materials