Resummation of Next-to-Leading Nonglobal Logarithms at the LHC.
Phys Rev Lett
; 132(8): 081602, 2024 Feb 23.
Article
em En
| MEDLINE
| ID: mdl-38457734
ABSTRACT
In cross sections with angular cuts, an intricate pattern of enhanced higher-order corrections known as nonglobal logarithms arises. The leading logarithmic terms were computed numerically two decades ago, but the resummation of subleading nonglobal logarithms remained a challenge that we solve in this Letter using renormalization group methods in effective field theory. To achieve next-to-leading logarithmic accuracy, we implement the two-loop anomalous dimension governing the resummation of nonglobal logarithms into a large-N_{c} parton shower framework, together with one-loop matching corrections. As a first application, we study the interjet energy flow in e^{+}e^{-} annihilation into two jets. We then present, for the first time, resummed predictions at next-to-leading logarithmic accuracy for a gap-between-jets observable at hadron colliders.
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MEDLINE
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En
Ano de publicação:
2024
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Article