Becher, Thomas; Neubert, Matthias; Rothen, Lorena; Shao, Dingyu (2016). Factorization and resummation for jet processes. Journal of High Energy Physics, 2016(11), pp. 1-61. Springer 10.1007/JHEP11(2016)019
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From a detailed analysis of cone-jet cross sections in effective field theory, we obtain novel factorization theorems which separate the physics associated with different energy scales present in such processes. The relevant low-energy physics is encoded in Wilson lines along the directions of the energetic particles inside the jets. This multi-Wilson-line structure is present even for narrow-cone jets due to the relevance of small-angle soft radiation. We discuss the renormalization-group equations satisfied by these operators. Their solution resums all logarithmically enhanced contributions to such processes, including non-global logarithms. Such logarithms arise in many observables, in particular whenever hard phase-space constraints are imposed, and are not captured with standard resummation techniques. Our formalism provides the basis for higher-order logarithmic resummations of jet and other non-global observables. As a nontrivial consistency check, we use it to obtain explicit two-loop results for all logarithmically enhanced terms in cone-jet cross sections and verify those against numerical fixed-order computations.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Becher, Thomas, Rothen, Lorena, Shao, Dingyu |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
23 Jan 2017 17:23 |
Last Modified: |
05 Dec 2022 15:00 |
Publisher DOI: |
10.1007/JHEP11(2016)019 |
ArXiv ID: |
1605.02737 |
BORIS DOI: |
10.7892/boris.91495 |
URI: |
https://boris.unibe.ch/id/eprint/91495 |
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