Measurement of k[subscript T] splitting scales in W→ℓν events at √s = 7 TeV with the ATLAS detector
Name
Measurement of k.pdf
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2.24 MB
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Author(s)
Taylor, Frank E
Alternative Title
Measurement of k T splitting scales in W→ℓν events at √s = 7 TeV with the ATLAS detector
Date Issued
May 2013
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The ATLAS Collaboration et al. “Measurement of K[subscript T] Splitting Scales in W→ℓν Events at √s} = 7 TeV with the ATLAS Detector.” The European Physical Journal C 73.5 (2013): n. pag. © 2013 CERN for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
A measurement of splitting scales, as defined by the k[subscript T] clustering algorithm, is presented for final states containing a W boson produced in proton–proton collisions at a centre-of-mass energy of 7 TeV. The measurement is based on the full 2010 data sample corresponding to an integrated luminosity of 36 pb[superscript −1] which was collected using the ATLAS detector at the CERN Large Hadron Collider. Cluster splitting scales are measured in events containing W bosons decaying to electrons or muons. The measurement comprises the four hardest splitting scales in a k[subscript T] cluster sequence of the hadronic activity accompanying the W boson, and ratios of these splitting scales. Backgrounds such
as multi-jet and top-quark-pair production are subtracted and the results are corrected for detector effects. Predictions from various Monte Carlo event generators at particle level are compared to the data. Overall, reasonable agreement is found with all generators, but larger deviations between the
predictions and the data are evident in the soft regions of the splitting scales.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-013-2432-8
