Triggers for Boosted Physics Signals at the Compact Muon Solenoid Experiment

Speaker: Dylan Rankin

When: December 8, 2014 (Mon), 12:30PM to 01:30PM (add to my calendar)
Location: PRB 365

This event is part of the Preliminary Oral Exam.

Examining Committee: Tulika Bose, Kevin Black, Martin Schmaltz, Shyamsunder Erramilli

Abstract: The Large Hadron Collider (LHC) is the most powerful particle accelerator ever built, with a design center of mass energy of 14 TeV for proton-proton collisions. The high center of mass energy combined with the high luminosity environment gives rise to many challenges for the Compact Muon Solenoid (CMS) experiment at the LHC. Many of these challenges stem from the abundance of jets that dominate the final states of all hadron colliders, but are especially problematic at the high center of mass energies and luminosities of the LHC. Techniques termed jet substructure techniques, developed for identifying structure in jets from boosted heavy resonances, have been shown to be very effective. These techniques are crucial to many new physics searches for heavy resonances. This talk will focus on the use of these techniques in the High Level Trigger (HLT) system. Specifically, we will show that one of these techniques, trimming, can be used to great effect in hadronic triggers, allowing the retention of events with boosted jets that would otherwise be rejected by more traditional triggers.

Rankin