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A novel method for modeling the recoil in W boson events at hadron colliders
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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, no 2-3, p. 250-262Article in journal (Refereed) Published
Abstract [en]

We present a new method for modeling the hadronic recoil in W -> lv 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 -> lv event. Implementation of this method requires that the data recoil library describe the proper-ties 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 1 fb(-1) 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 highprecision measurements that will be possible with data from Run 11 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, no 2-3, p. 250-262
Keywords [en]
W, Z, Mass, Width, Hadron, Collider, Tevatron, D0, Recoil
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-127432DOI: 10.1016/j.nima.2009.08.056ISI: 000271548200027OAI: oai:DiVA.org:uu-127432DiVA, id: diva2:330562
Available from: 2010-07-16 Created: 2010-07-13 Last updated: 2017-12-12Bibliographically approved

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Uppsala UniversityDepartment of Physics and Astronomy
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Physical Sciences

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