July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

Mapping the QCD radiation spectrum

Aug 2, 2017, 2:17 PM
22m
Racetrack (Fermi National Accelerator Laboratory)

Racetrack

Fermi National Accelerator Laboratory

Presentation QCD QCD

Speaker

Mr Keith Pedersen (Illinois Institute of Technology)

Description

Precision physics at the HL-LHC will require novel techniques to distinguish hard QCD from pileup and beam jets (e.g. the identification of hadronic $W^+$ decay for electroweak measurements or boosted top tagging). One scheme is to identify the signature of QCD radiation inside of jets. The high particle-multiplicity of LHC multijets permits fine-grained investigation of the QCD radiation spectrum via $N$-point correlation functions. But even with a relatively simple example -- the Fox-Wolfram moments at an $e^+ e^-$ collider -- high-frequency aliasing masks any useful information. We propose a general solution to suppress spectral leakage for any spatial correlation function.

Primary author

Mr Keith Pedersen (Illinois Institute of Technology)

Co-author

Prof. Zack Sullivan (Illinois Institute of Technology)

Presentation materials