Non-local slicing approaches for NNLO QCD in MCFM
Abstract
We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are pp → H, W±, Z, W±H, ZH, W±γ, Zγ and γγ and, for the first time in the code, W+W-, W±Z and ZZ. Decays of the unstable bosons are fully included, resulting in a flexible fully differential Monte Carlo code. The NNLO corrections have been calculated using two non-local slicing approaches, isolating the doubly unresolved region by cutting on the zero-jettiness, $$\mathscr{T}_0$$, or on qT, the transverse momentum of the colour singlet final-state particles. We find that for most, but not all processes the qT slicing method leads to smaller power corrections for equal computational burden.
- Authors:
-
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Univ. of Durham (United Kingdom)
- Physical Research Laboratory, Ahmedabad (India)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1854858
- Report Number(s):
- FERMILAB-PUB-22-075-T; IPPP/22/05; arXiv:2202.07738
Journal ID: ISSN 1029-8479; oai:inspirehep.net:2033545; TRN: US2304969
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2022; Journal Issue: 6; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; electroweak precision physics; higher-order perturbative calculations
Citation Formats
Campbell, John M., Ellis, R. Keith, and Seth, Satyajit. Non-local slicing approaches for NNLO QCD in MCFM. United States: N. p., 2022.
Web. doi:10.1007/jhep06(2022)002.
Campbell, John M., Ellis, R. Keith, & Seth, Satyajit. Non-local slicing approaches for NNLO QCD in MCFM. United States. https://doi.org/10.1007/jhep06(2022)002
Campbell, John M., Ellis, R. Keith, and Seth, Satyajit. Wed .
"Non-local slicing approaches for NNLO QCD in MCFM". United States. https://doi.org/10.1007/jhep06(2022)002. https://www.osti.gov/servlets/purl/1854858.
@article{osti_1854858,
title = {Non-local slicing approaches for NNLO QCD in MCFM},
author = {Campbell, John M. and Ellis, R. Keith and Seth, Satyajit},
abstractNote = {We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are pp → H, W±, Z, W±H, ZH, W±γ, Zγ and γγ and, for the first time in the code, W+W-, W±Z and ZZ. Decays of the unstable bosons are fully included, resulting in a flexible fully differential Monte Carlo code. The NNLO corrections have been calculated using two non-local slicing approaches, isolating the doubly unresolved region by cutting on the zero-jettiness, $\mathscr{T}_0$, or on qT, the transverse momentum of the colour singlet final-state particles. We find that for most, but not all processes the qT slicing method leads to smaller power corrections for equal computational burden.},
doi = {10.1007/jhep06(2022)002},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2022,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 2022},
month = {Wed Jun 01 00:00:00 EDT 2022}
}
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Next-to-Next-to-Leading-Order QCD Corrections to the Transverse Momentum Distribution of Weak Gauge Bosons
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The diphoton $$q_T$$ spectrum at N$$^3$$LL$$^\prime $$ + NNLO
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Soft-collinear factorization in effective field theory
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