Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

V+heavy flavor jets and constraints to PDFs with CMS

Jul 7, 2018, 9:15 AM
15m
202 (COEX, Seoul)

202

COEX, Seoul

Parallel Strong Interactions and Hadron Physics Strong Interactions and Hadron Physics

Speaker

Juan Pablo Fernandez Ramos (Centro de Investigaciones Energéti cas Medioambientales y Tecno)

Description

The associated production of vector bosons, W or Z, and jets originating from heavy-flavour quarks is a large background source in measurements of several standard model processes, Higgs boson studies, and many searches for physics beyond the SM. The study of events with one or two well-identified and isolated leptons accompanied by heavy-flavour jets is crucial to refine the theoretical calculations in perturbative QCD, as well as to validate associated Monte Carlo techniques. Using the LHC proton-proton collision data at centre-of-mass energies of 8 and 13 TeV collected by the CMS detector, Wbb, Zb(b), W+c, and Z+c cross sections are measured. Fiducial differential cross sections are measured as a function of several kinematic observables. The study of the associated production of a vector boson with jets from a c-quark is specially interesting to improve the treatment of heavy quarks in PDF-related studies. The production of a W boson associated with a c-quark allows probing and constraining the strange quark content of the proton. T he associated production of a Z boson and c-quark jets may give insight into the existence of an intrinsic charm quark component inside the proton.

Primary author

Arnd Meyer (Rheinisch Westfaelische Tech. Hoch. (DE))

Presentation materials