A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHCEnergies
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2006 |
ISBN-10 | : OCLC:727209825 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHCEnergies written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Standard jet finding techniques used in elementary particle collisions have not been successful in the high track density of heavy-ion collisions. This paper describes a modified cone-type jet finding algorithm developed for the complex environment of heavy-ion collisions. The primary modification to the algorithm is the evaluation and subtraction of the large background energy, arising from uncorrelated soft hadrons, in each collision. A detailed analysis of the background energy and its event-by-event fluctuations has been performed on simulated data, and a method developed to estimate the background energy inside the jet cone from the measured energy outside the cone on an event-by-event basis. The algorithm has been tested using Monte-Carlo simulations of Pb+Pb collisions at (square root)s = 5.5 TeV for the ALICE detector at the LHC. The algorithm can reconstruct jets with a transverse energy of 50 GeV and above with an energy resolution of (almost equal to) 30%.