30 September 2020 to 2 October 2020
America/Chicago timezone

Live Hands-on lesson: Physics objects II - Jets and MET

1 Oct 2020, 08:30
1h 30m

Speakers

Farrah Simpson (Brown University (US)) Julie Hogan (Brown University, Bethel University (US)) Nikolas Pervan (Brown University (US))

Description

Jets and missing transverse energy (MET) are critical for CMS physics analyses. They are more complex than most of the objects we discussed in the previous lesson, because they are reconstructed using multiple particle-flow candidates. After all candidates have been built from the tracks and energy deposits in CMS, they can be “clustered” using a variety of algorithms into composite objects called “jets”. Missing transverse energy clusters, in a sense, all candidates in the entire detector: it is the negative vector sum of the momentum of all candidates.

In this lesson we will explore the basic utilities for jets and MET, how to identify jets that arise from interesting original particles such as bottom quarks, and possibly how to correct jets and MET for differences between data and simulation.

Primary author

Julie Hogan (Brown University, Bethel University (US))

Co-authors

Farrah Simpson (Brown University (US)) Nikolas Pervan (Brown University (US))

Presentation materials