23–25 Nov 2016
CERN
Europe/Zurich timezone

A framework for second-order parton showers

25 Nov 2016, 09:30
15m
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
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Speaker

Haitao Li (Monash)

Description

A framework is presented for including second-order perturbative corrections to the radiation patterns of parton showers. The formalism allows to combine $O(\alpha_s^2)$-corrected iterated 2$\to$3 kernels for "ordered" gluon emissions with tree-level 2$\to$4 kernels for "unordered" ones. The combined Sudakov evolution kernel is thus accurate to $O(\alpha_s^2)$. As a first step towards a full-fledged implementation of these ideas, we develop an explicit implementation of 2$\to$4 shower branchings in this letter.

Primary author

Haitao Li (Monash)

Presentation materials