Getting ready to define jets at the LHC

Monday 11 Jan 2010, 14:00 → 15:00 Europe/Zurich

EPFL, Salle N. 727 BSP

"Jets", ie collimated bunches of particles, are used in collider physics since decades. Over this period, many different recipes have been introduced to define the jets from the particles in an event. The main body of this talk reviews these various "jet definitions" putting a particular emphasis on new algorithms that have been introduced recently to cure issues with the ones used at the Tevatron. I will then discuss their implications on LHC physics. In the last part of the talk, I will compare the performances of the different jet definitions for kinematic reconstructions at the LHC.