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A Novel Method for Modeling the Recoil in W Boson Events at Hadron Colliders
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2009 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 609, 250-262 p.Article in journal (Refereed) Published
Abstract [en]

We present a new method for modeling the hadronic recoil in W→ℓν events produced at hadron colliders. The recoil is chosen from a library of recoils in Z→ℓℓ data events and overlaid on a simulated W→ℓν event. Implementation of this method requires that the data recoil library describe the properties of the measured recoil as a function of the true, rather than the measured, transverse momentum of the boson. We address this issue using a multidimensional Bayesian unfolding technique. We estimate the statistical and systematic uncertainties from this method for the W boson mass and width measurements assuming

of data from the Fermilab Tevatron. The uncertainties are found to be small and comparable to those of a more traditional parameterized recoil model. For the high precision measurements that will be possible with data from Run II of the Fermilab Tevatron and from the CERN LHC, the method presented in this paper may be advantageous, since it does not require an understanding of the measured recoil from first principles

Place, publisher, year, edition, pages
2009. Vol. 609, 250-262 p.
Keyword [en]
W, Z, Mass, Width, Hadron Collider, Tevatron, D0, Recoil
National Category
Subatomic Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:su:diva-33095DOI: 10.1016/j.nima.2009.08.056ISI: 000271548200027OAI: oai:DiVA.org:su-33095DiVA: diva2:282338
Projects
D0
Note
Publikationen har totalt 487 författare, V. Abazov et al.Available from: 2009-12-19 Created: 2009-12-19 Last updated: 2017-12-12Bibliographically approved

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Publisher's full texthttp://dx.doi.org/10.1016/j.nima.2009.08.056

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