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Title: 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:
ORCiD logo [1];  [2];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Dresden Univ. of Technology (Germany)
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) (SC-25)
OSTI Identifier:
1529364
Report Number(s):
arXiv:1807.04348; SLAC-PUB-17299; FERMILAB-PUB-18-764-T; MCNET-18-15
Journal ID: ISSN 1434-6044; 1681978
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 79; Journal Issue: 9; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
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. United States: 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. United States. doi:10.1140/epjc/s10052-019-7212-7.
Höche, Stefan, Liebschner, Sebastian, and Siegert, Frank. Fri . "Resonance-aware subtraction in the dipole method". United States. doi:10.1140/epjc/s10052-019-7212-7. https://www.osti.gov/servlets/purl/1529364.
@article{osti_1529364,
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 = {United States},
year = {2019},
month = {8}
}

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