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2011

Improved $b$-jet Energy Correction for $H \to b\bar{b}$ Searches at CDF

Aaltonen, T., Buzatu, A., Kilminster, B. et al.

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We present a method for improving the $b$-jet energy resolution in order to improve the signal sensitivity in searches for particles decaying to a $b$ quark and anti-$b$ quark.

A correction function is computed for individual jets, which combines information from the secondary vertex tagger, the offline tracking and standard calorimeter-based jet-energy reconstruction algorithm in order to provide a more accurate measurement of the true $b$-quark energy.
We apply the correction to Monte-Carlo-simulated jets in the process $WH \rightarrow \ell \nu b\bar b$ and find an improvement in both the mean and the resolution of the $b$-jet energy with respect to the $b$-quark energy.
The correction improves the measured Higgs dijet invariant mass resolution from $\sim$ 15%(standard jet corrections) to $\sim$ 11%(improved jet corrections) in the Higgs mass range from 100 GeV/$c^2$ - 150 GeV/$c^2$.

Improved $b$-jet Energy Correction for $H \to b\bar{b}$ Searches at CDF · Around

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Rene Brun and Fons Rademakers, ROOT - An Object Oriented Data Analysis Framework, Proceedings AIHENP’96 Workshop, Lausanne, Sep. 1996, Nucl. Instrum. Methods, A389
Original
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C.S. Hill, Nucl. Instrum. Methods, A530
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Earlier work this paper cites.
D. Acosta et al. , (CDF collaboration), Phys. Rev. D 71
2005
Earlier work this paper cites.

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CDF II uses a cylindrical coordinate system in which ϕ \phi is the azimuthal angle, r r is the radius from the nominal beamline, and z z points in the proton beam direction with the origin at the center of the detector. The transverse plane is the plane perpendicular to the z z axis. The x ^ \hat{x} axis points outward from the accelerator ring, and the y ^ \hat{y} axis points upwards
Cited in the paper.

Then

FERMILAB-THESIS-2007-35 (2007); T. Aaltonen, et al. (CDF Collaboration), Phys. Rev. D 82
2010
Later among the works it cites.
The Review of Particle Physics, K. Nakamura et al. , (Particle Data Group), J. Phys. G 37
2012
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