Evaluation of the strong coupling constant αs using the ATLAS inclusive jet cross-section data
Creators
- 1. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- 2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Description
We perform a determination of the strong coupling constant using the latest ATLAS inclusive jet cross section data, from proton-proton collisions at √(s)=7 TeV, and their full information on the bin-to-bin correlations. Several procedures for combining the statistical information from the different data inputs are studied and compared. The theoretical prediction is obtained using NLO QCD, and it also includes non-perturbative corrections. Our determination uses inputs with transverse momenta between 45 and 600 GeV, the running of the strong coupling being also tested in this range. Good agreement is observed when comparing our result with the world average at the Z-boson scale, as well as with the most recent results from the Tevatron. (orig.)
Files
43040666.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 14 p.
- ISSN
- 0418-9833
- Report number
- DESY--12-039
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 43040666
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- COUPLING CONSTANTS; EXPERIMENTAL DATA; HADRONS; INCLUSIVE INTERACTIONS; JET MODEL; MULTIPLE PRODUCTION; PROTON-PROTON INTERACTIONS; STRONG INTERACTIONS; TEV RANGE 01-10; TRANSVERSE MOMENTUM
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BASIC INTERACTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; LINEAR MOMENTUM; MATHEMATICAL MODELS; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PROTON-NUCLEON INTERACTIONS; TEV RANGE
Optional Information
- Secondary number(s)
- CERN-PH-EP--2012-064