4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Performance of Jets and Missing Transverse Energy in CMS

Jul 6, 2012, 12:00 PM
Room 218 (Melbourne Convention and Exhibition Centre)

Room 218

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 13. Detectors and Computing for HEP Room 218 - Detectors and Computing for HEP - TR13


Mr Joram Berger (KIT (DE))


A summary of the measurements of the jet energy calibration in CMS is presented, performed with data samples collected in proton-proton collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 1.6/fb. The final jet energy calibration is based on dijet, γ+jet and Z+jet events. The results are presented for the "Particle Flow" approach, which attempts to reconstruct individually table particles in the event, prior to the jet clustering, based on information from all relevant subdetectors. We discuss the effect of pile-up interactions and the state of the art mitigation techniques used in CMS and we describe the main sources of uncertainty on the jet energy calibration. Finally, the results of comprehensive studies of missing transverse energy are presented.


Mr Joram Berger (KIT (DE))

Presentation materials