Hamilton, K;
Dasgupta, M;
Dreyer, F;
Monni, P;
Salam, G;
Soyez, G;
(2020)
Parton showers beyond leading logarithmic accuracy.
Physical Review Letters
, 125
(5)
, Article 052002. 10.1103/PhysRevLett.125.052002.
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Abstract
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- NC 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.
| Type: | Article |
|---|---|
| Title: | Parton showers beyond leading logarithmic accuracy |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.125.052002 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.125.052002 |
| Language: | English |
| Additional information: | © Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10102848 |
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