Improving NLO QCD event generators with high-energy EW corrections
(2024) In European Physical Journal C 84(5).- Abstract
In this work we present a new method for the combination of electroweak (EW) corrections at high energies, the so-called EW Sudakov logarithms (EWSL), and next-to-leading-order QCD predictions matched to parton-shower simulations (NLO+PS). Our approach is based on a reweighting procedure of NLO+PS events. In particular, both events with and without an extra hard emission from matrix elements are consistently reweighted via the inclusion of the corresponding EWSL contribution. We describe the technical details and the implementation in the MadGraph5_aMC@NLO framework. Via a completely automated procedure, events at this level of accuracy can be obtained for a vast class of hadroproduction processes. As a byproduct we provide results for... (More)
In this work we present a new method for the combination of electroweak (EW) corrections at high energies, the so-called EW Sudakov logarithms (EWSL), and next-to-leading-order QCD predictions matched to parton-shower simulations (NLO+PS). Our approach is based on a reweighting procedure of NLO+PS events. In particular, both events with and without an extra hard emission from matrix elements are consistently reweighted via the inclusion of the corresponding EWSL contribution. We describe the technical details and the implementation in the MadGraph5_aMC@NLO framework. Via a completely automated procedure, events at this level of accuracy can be obtained for a vast class of hadroproduction processes. As a byproduct we provide results for phenomenologically relevant physical distributions from top-quark pair and Higgs boson associated production (tt¯H) and from the associated production of three Z gauge bosons (ZZZ).
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- author
- Pagani, Davide ; Vitos, Timea LU and Zaro, Marco
- organization
- publishing date
- 2024-05
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 84
- issue
- 5
- article number
- 514
- publisher
- Springer
- external identifiers
-
- scopus:85193801952
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-024-12836-0
- language
- English
- LU publication?
- yes
- id
- 788d4a53-479d-449c-a7d3-83e112bda5b4
- date added to LUP
- 2024-06-05 12:43:26
- date last changed
- 2024-06-05 12:44:07
@article{788d4a53-479d-449c-a7d3-83e112bda5b4,
abstract = {{<p>In this work we present a new method for the combination of electroweak (EW) corrections at high energies, the so-called EW Sudakov logarithms (EWSL), and next-to-leading-order QCD predictions matched to parton-shower simulations (NLO+PS). Our approach is based on a reweighting procedure of NLO+PS events. In particular, both events with and without an extra hard emission from matrix elements are consistently reweighted via the inclusion of the corresponding EWSL contribution. We describe the technical details and the implementation in the MadGraph5_aMC@NLO framework. Via a completely automated procedure, events at this level of accuracy can be obtained for a vast class of hadroproduction processes. As a byproduct we provide results for phenomenologically relevant physical distributions from top-quark pair and Higgs boson associated production (tt¯H) and from the associated production of three Z gauge bosons (ZZZ).</p>}},
author = {{Pagani, Davide and Vitos, Timea and Zaro, Marco}},
issn = {{1434-6044}},
language = {{eng}},
number = {{5}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Improving NLO QCD event generators with high-energy EW corrections}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-024-12836-0}},
doi = {{10.1140/epjc/s10052-024-12836-0}},
volume = {{84}},
year = {{2024}},
}