Physics Department Seminar
Dr. Alberto Tonero
Postdoctoral Fellow
Carleton University
Tuesday, October 30, 2018

Effective searches for New Physics at LHC

In October 2018 the Large Hadron Collider (LHC) has entered the final days of a four-year-long run (Run 2). The next hadrons will collide at CERN only in the spring of 2021, after a long technical shut down. During almost a decade of operation, the LHC experiment has given a magnificent contribution to fundamental research by testing the Standard Model of elementary particles and by finding its last missing piece, the famous Higgs boson, in 2012. However "not all promises have been kept", because no new physics particle has been discovered yet, contrary to what expected (or hoped) by the particle physics community. Therefore, the possibility that new particles lie at a energy scale outside the reach of the LHC is gaining more and more consideration. In this case, new physics is best described in a model independent way by an effective lagrangian that contains higher-dimensional operators made of Standard Model particle fields. In this colloquium I will present the status of current searches for these effective operators at LHC and discuss future perspectives and implications.