Jet reconstruction in hadronic collisions by Gaussian filtering
Abstract
Description
A new algorithm for jet finding in hadronic collisions is presented. The algorithm, based on a Gaussian filter in $(η,ϕ)$, is specifically intended for use in heavy ion collisions and/or for detectors with limited acceptance. The performance of the algorithm is compared to two conventional algorithms, a seedless cone algorithm and a $k_\perp$ algorithm, for Pythia simulated di-jet events in $\sqrt{s} = 200 \mathrm{GeV}$ $p + p$ collisions with $4 \mathrm{GeV}/c \le \sqrt{Q^2} \le 16 \mathrm{GeV}/c$. The Gaussian filter is found to perform as well as, and in some instances better than, the conventional algorithms.
6 pages, 7 figures, with vertical scale in Fig. 5, 6 corrected
6 pages, 7 figures, with vertical scale in Fig. 5, 6 corrected