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Title: Determination of the Strong Coupling Constant and Multijet Cross Section Ratio Measurements

Abstract

Concepts and results of determinations of the strong coupling in hadron collisions are discussed. A recent {alpha}{sub s} result from the inclusive jet cross section in p{bar p} collisions at {radical}s = 1.96 TeV is presented which is based on perturbative QCD calculations beyond next-to-leading order. Emphasis is put on the consistency of the conceptual approach. Conceptual limitations in the approach of extracting as from cross section data are discussed and how these can be avoided by using observables that are defined as ratios of cross sections. For one such observable, the multijet cross section ratio R{sub 3/2}, preliminary results are presented.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1023977
Report Number(s):
FERMILAB-CONF-11-285-E
arXiv eprint number arXiv:1106.5132; TRN: US1104645
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COUPLING CONSTANTS; CROSS SECTIONS; HADRONS; INCLUSIVE INTERACTIONS; JET MODEL; PERTURBATION THEORY; MULTIPLE PRODUCTION; QUANTUM CHROMODYNAMICS; Experiment-HEP

Citation Formats

Wobisch, M. Determination of the Strong Coupling Constant and Multijet Cross Section Ratio Measurements. United States: N. p., 2011. Web.
Wobisch, M. Determination of the Strong Coupling Constant and Multijet Cross Section Ratio Measurements. United States.
Wobisch, M. 2011. "Determination of the Strong Coupling Constant and Multijet Cross Section Ratio Measurements". United States. https://www.osti.gov/servlets/purl/1023977.
@article{osti_1023977,
title = {Determination of the Strong Coupling Constant and Multijet Cross Section Ratio Measurements},
author = {Wobisch, M},
abstractNote = {Concepts and results of determinations of the strong coupling in hadron collisions are discussed. A recent {alpha}{sub s} result from the inclusive jet cross section in p{bar p} collisions at {radical}s = 1.96 TeV is presented which is based on perturbative QCD calculations beyond next-to-leading order. Emphasis is put on the consistency of the conceptual approach. Conceptual limitations in the approach of extracting as from cross section data are discussed and how these can be avoided by using observables that are defined as ratios of cross sections. For one such observable, the multijet cross section ratio R{sub 3/2}, preliminary results are presented.},
doi = {},
url = {https://www.osti.gov/biblio/1023977}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 2011},
month = {Wed Jun 01 00:00:00 EDT 2011}
}

Conference:
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