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Title: Groomed jet mass as a direct probe of collinear parton dynamics
Abstract We study the link between parton dynamics in the collinear limit and the logarithmically enhanced terms of the groomed jet mass distribution, for jets groomed with the modified mass-drop tagger (mMDT). While the leading-logarithmic (LL) result is linked to collinear evolution with leading-order splitting kernels, here we derive the NLL structure directly from triple-collinear splitting kernels. The calculation we present is a fixed-order calculation in the triple-collinear limit, independent of resummation ingredients and methods. It therefore constitutes a powerful cross-check of the NLL results previously derived using the SCET formalism and provides much of the insight needed for resummation within the traditional QCD approach.  more » « less
Award ID(s):
1820818
PAR ID:
10288274
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
The European Physical Journal C
Volume:
80
Issue:
9
ISSN:
1434-6044
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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