26-30 March 2012
University of Bonn
Europe/Berlin timezone

From Jet Counting to Jet Vetoes

27 Mar 2012, 11:20
20m
Small Lecture Hall, Mathematical Institute (University of Bonn)

Small Lecture Hall, Mathematical Institute

University of Bonn

Hadronic final states Hadronic final states

Speaker

Peter Schichtel (ITP)

Description

The properties of jets are used in many LHC physics searches. Higgs searches use jet vetoes and fixed recoil jet multiplicities. Searches for new physics particles require a careful distinction of decay jets from QCD jet radiation. We show that the exclusive number of jets at hadron colliders can be described with two simple patterns: staircase scaling and Poisson scaling. In photon plus jets production we can interpolate between the two patterns using simple kinematic cuts. The associated theoretical errors are well under control. We show how understanding the exclusive jet multiplicities significantly impacts Higgs searches and searches for supersymmetry at the LHC.

Primary author

Peter Schichtel (Heidelberg University)

Co-authors

Steffen Schumann (Goettingen University) Tilman Plehn (Heidelberg University)

Presentation materials