QCD Seminars

Factorization and Resummation for Sequential Recombination Jet Cross Section

by Jürg Andreas Haag

Europe/Zurich
4/S-056 (CERN)

4/S-056

CERN

20
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Description

We extend the class of factorization theorems for non-global observables from fixed angular constraints to cross sections defined in terms of sequential jet clustering. The associated hard and soft functions depend not only on the directions of the hard partons, but also on their energy fractions. We derive the one-loop anomalous dimension of the hard functions that drives the leading-logarithmic resummation. The anomalous dimension imposes energy ordering, which simplifies the clustering sequence. We perform resummations for gap-between-jet observables defined with different jet algorithms and explain the effects of the clustering on the importance of secondary emissions and on the effective gap size.

Videoconference
QCD seminars
Zoom Meeting ID
62752332519
Host
Elena Gianolio
Alternative hosts
Simone Zoia, Michelangelo Mangano, Juan M. Cruz Martinez, John Cassar, Silvia Ferrario Ravasio, Pascal Pignereau
Passcode
37431264
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