QCD corrections in Standard Model EFT fits to and production
Abstract
We investigate the role of anomalous gauge boson and fermion couplings in the production of and W+W– pairs at the LHC to next-to-leading-order (NLO) QCD in the Standard Model effective field theory (SMEFT), including dimension-six operators. Our results are implemented in a publicly available version of the powheg-box. We combine our results in the leptonic final state eνμ+μ– with previous W+W– results to demonstrate the numerical effects of NLO QCD corrections on the limits on effective couplings derived from ATLAS and CMS 8 and 13 TeV differential measurements. Our study demonstrates the importance of including NLO QCD SMEFT corrections in the analysis, while the effects on production are smaller. We also show that the O(1/Λ4) contributions dominate the analysis, where Λ is the high-energy scale associated with the SMEFT.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Office of Workforce Development for Teachers & Scientists (WDTS); USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS)
- OSTI Identifier:
- 1580629
- Alternate Identifier(s):
- OSTI ID: 1582565
- Report Number(s):
- BNL-213539-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 113010
- Grant/Contract Number:
- SC0012704; PHY-1620628; PHY-1915093; SC0014664
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 100 Journal Issue: 11; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; SMEFT; QCD; SM; EFT; WW; WZ; LHC; ATLAS
Citation Formats
Baglio, Julien, Dawson, Sally, and Homiller, Samuel. QCD corrections in Standard Model EFT fits to W Z and W W production. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.113010.
Baglio, Julien, Dawson, Sally, & Homiller, Samuel. QCD corrections in Standard Model EFT fits to W Z and W W production. United States. https://doi.org/10.1103/PhysRevD.100.113010
Baglio, Julien, Dawson, Sally, and Homiller, Samuel. Mon .
"QCD corrections in Standard Model EFT fits to W Z and W W production". United States. https://doi.org/10.1103/PhysRevD.100.113010.
@article{osti_1580629,
title = {QCD corrections in Standard Model EFT fits to W Z and W W production},
author = {Baglio, Julien and Dawson, Sally and Homiller, Samuel},
abstractNote = {We investigate the role of anomalous gauge boson and fermion couplings in the production of WZ and W+W– pairs at the LHC to next-to-leading-order (NLO) QCD in the Standard Model effective field theory (SMEFT), including dimension-six operators. Our results are implemented in a publicly available version of the powheg-box. We combine our WZ results in the leptonic final state eνμ+μ– with previous W+W– results to demonstrate the numerical effects of NLO QCD corrections on the limits on effective couplings derived from ATLAS and CMS 8 and 13 TeV differential measurements. Our study demonstrates the importance of including NLO QCD SMEFT corrections in the WZ analysis, while the effects on WW production are smaller. We also show that the O(1/Λ4) contributions dominate the analysis, where Λ is the high-energy scale associated with the SMEFT.},
doi = {10.1103/PhysRevD.100.113010},
journal = {Physical Review. D.},
number = 11,
volume = 100,
place = {United States},
year = {Mon Dec 30 00:00:00 EST 2019},
month = {Mon Dec 30 00:00:00 EST 2019}
}
https://doi.org/10.1103/PhysRevD.100.113010
Web of Science
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