Resonance-aware subtraction in the dipole method
Abstract
We present a technique for infrared subtraction in next-to-leading order QCD calculations that preserves the virtuality of resonant propagators. The approach is based on the pseudo-dipole subtraction method proposed by Catani and Seymour in the context of identified particle production. As the first applications, we compute the $e^+e^-$ → $W^+W^-$ $$\bar{bb}$$ and $pp$ → $W^+W^-$ $$j_bj_b$$ cross-section, which are both dominated by top-quark pair production above the threshold. We compare the efficiency of our approach with a calculation performed using the standard dipole subtraction technique.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1619364
- Alternate Identifier(s):
- OSTI ID: 1529364
- Report Number(s):
- arXiv:1807.04348; SLAC-PUB-17299; FERMILAB-PUB-18-764-T; MCNET-18-15
Journal ID: ISSN 1434-6044; 728; PII: 7212
- Grant/Contract Number:
- AC02-07CH11359; AC02-76SF00515
- Resource Type:
- Published Article
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 79 Journal Issue: 9; Journal ID: ISSN 1434-6044
- Publisher:
- Springer Science + Business Media
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Höche, Stefan, Liebschner, Sebastian, and Siegert, Frank. Resonance-aware subtraction in the dipole method. Germany: N. p., 2019.
Web. doi:10.1140/epjc/s10052-019-7212-7.
Höche, Stefan, Liebschner, Sebastian, & Siegert, Frank. Resonance-aware subtraction in the dipole method. Germany. https://doi.org/10.1140/epjc/s10052-019-7212-7
Höche, Stefan, Liebschner, Sebastian, and Siegert, Frank. Fri .
"Resonance-aware subtraction in the dipole method". Germany. https://doi.org/10.1140/epjc/s10052-019-7212-7.
@article{osti_1619364,
title = {Resonance-aware subtraction in the dipole method},
author = {Höche, Stefan and Liebschner, Sebastian and Siegert, Frank},
abstractNote = {We present a technique for infrared subtraction in next-to-leading order QCD calculations that preserves the virtuality of resonant propagators. The approach is based on the pseudo-dipole subtraction method proposed by Catani and Seymour in the context of identified particle production. As the first applications, we compute the $e^+e^-$ → $W^+W^-$ $\bar{bb}$ and $pp$ → $W^+W^-$ $j_bj_b$ cross-section, which are both dominated by top-quark pair production above the threshold. We compare the efficiency of our approach with a calculation performed using the standard dipole subtraction technique.},
doi = {10.1140/epjc/s10052-019-7212-7},
journal = {European Physical Journal. C, Particles and Fields},
number = 9,
volume = 79,
place = {Germany},
year = {2019},
month = {8}
}
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