A novel method for modeling the recoil in W boson events at hadron colliders

Abazov, V. M. ; Mondal, N. K. ; et., al (2009) A novel method for modeling the recoil in W boson events at hadron colliders Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 609 (2-3). pp. 250-262. ISSN 0168-9002

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.nima.2009.08.056

Abstract

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→ℓ ℓdata events and overlaid on a simulated W→ℓv 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 1fb-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 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.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:W; Z; Mass; Width; Hadron; Collider; Tevatron; D0; Recoil
ID Code:92415
Deposited On:30 May 2012 13:54
Last Modified:30 May 2012 13:54

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