Integrated and differential accuracy in resummed cross sections
Abstract
Standard QCD resummation techniques provide precise predictions for the spectrum and the cumulant of a given observable. The integrated spectrum and the cumulant differ by higher-order terms which, however, can be numerically significant. Here in this paper we propose a method, which we call the σ-improved scheme, to resolve this issue. It consists of two steps: (i) include higher-order terms in the spectrum to improve the agreement with the cumulant central value, and (ii) employ profile scales that encode correlations between different points to give robust uncertainty estimates for the integrated spectrum. We provide a generic algorithm for determining such profile scales, and show the application to the thrust distribution in e+e- collisions at NLL'+NLO and NNLL'+NNLO.
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Berkeley Center for Theoretical Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1430676
- Alternate Identifier(s):
- OSTI ID: 1349392
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Bertolini, Daniele, Solon, Mikhail P., and Walsh, Jonathan R. Integrated and differential accuracy in resummed cross sections. United States: N. p., 2017.
Web. doi:10.1103/PhysRevD.95.054024.
Bertolini, Daniele, Solon, Mikhail P., & Walsh, Jonathan R. Integrated and differential accuracy in resummed cross sections. United States. https://doi.org/10.1103/PhysRevD.95.054024
Bertolini, Daniele, Solon, Mikhail P., and Walsh, Jonathan R. Thu .
"Integrated and differential accuracy in resummed cross sections". United States. https://doi.org/10.1103/PhysRevD.95.054024. https://www.osti.gov/servlets/purl/1430676.
@article{osti_1430676,
title = {Integrated and differential accuracy in resummed cross sections},
author = {Bertolini, Daniele and Solon, Mikhail P. and Walsh, Jonathan R.},
abstractNote = {Standard QCD resummation techniques provide precise predictions for the spectrum and the cumulant of a given observable. The integrated spectrum and the cumulant differ by higher-order terms which, however, can be numerically significant. Here in this paper we propose a method, which we call the σ-improved scheme, to resolve this issue. It consists of two steps: (i) include higher-order terms in the spectrum to improve the agreement with the cumulant central value, and (ii) employ profile scales that encode correlations between different points to give robust uncertainty estimates for the integrated spectrum. We provide a generic algorithm for determining such profile scales, and show the application to the thrust distribution in e+e- collisions at NLL'+NLO and NNLL'+NNLO.},
doi = {10.1103/PhysRevD.95.054024},
journal = {Physical Review D},
number = 5,
volume = 95,
place = {United States},
year = {Thu Mar 30 00:00:00 EDT 2017},
month = {Thu Mar 30 00:00:00 EDT 2017}
}
Web of Science
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Works referencing / citing this record:
Joint Two-Dimensional Resummation in $q_T$ and $0$-Jettiness at NNLL
text, January 2019
- Lustermans, Gillian; Michel, Johannes; Tackmann, Frank J.
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