Parton Showers beyond Leading Logarithmic Accuracy.
- Dasgupta M Consortium for Fundamental Physics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom.
- Dreyer FA Rudolf Peierls Centre for Theoretical Physics, Parks Road, Oxford OX1 3PU, United Kingdom.
- Hamilton K Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom.
- Monni PF CERN, Theoretical Physics Department, CH-1211 Geneva 23, Switzerland.
- Salam GP Rudolf Peierls Centre for Theoretical Physics, Parks Road, Oxford OX1 3PU, United Kingdom.
- Soyez G Institut de Physique Théorique, Université Paris-Saclay, CNRS, CEA, F-91191 Gif-sur-Yvette, France.
- 2020-08-16
Published in:
- Physical review letters. - 2020
English
Parton showers are among the most widely used tools in collider physics. Despite their key importance, none so far have been able to demonstrate accuracy beyond a basic level known as leading logarithmic order, with ensuing limitations across a broad spectrum of physics applications. In this Letter, we propose criteria for showers to be considered next-to-leading logarithmic accurate. We then introduce new classes of shower, for final-state radiation, that satisfy the main elements of these criteria in the widely used large-N_{C} limit. As a proof of concept, we demonstrate these showers' agreement with all-order analytical next-to-leading logarithmic calculations for a range of observables, something never so far achieved for any parton shower.
- Language
-
- English
- Open access status
- hybrid
- Identifiers
-
- DOI 10.1103/PhysRevLett.125.052002
- PMID 32794866
- Persistent URL
- https://sonar.ch/global/documents/106023
Statistics
Document views: 34
File downloads:
- Full-text: 0