New tools in jet physics: SISCone (a new cone algorithm) - jet areas (a new concept)

by Gregory Soyez (Brookhaven National Lab)

Thursday 14 Feb 2008, 16:15 → 17:15 Europe/Brussels

e.349

After briefly introducing what jets are suppose to describe and how two broad classes of definitions aim at doing so, I will concentrate on one of those classes: the cone algorithms. I will show that the previous implementations fail to satisfy the basic requirements from the Snowmass accord and present SISCone as a solution. I will describe the impact of this new algorithm at different levels, e.g. speed and physical observable measurements. In the last part of the talk, I will define the concept of jet areas and give an overview of its basic properties. I will finally show how they can be used to subtract pollution from soft background such as pileup.