Wednesday weekly meeting

Wednesday 23 Jun 2021, 11:00 → 12:00 Asia/Tehran

Gholamhossein Haghighat (IPM)

General weekly meeting of the school of particles and accelerators

Meeting room link:                                                                                                                        https://meet.google.com/vax-dyjg-wju                                                                                                                                          Alternative link:                                                                                                                                                             https://www.skyroom.online/ch/ipm-particles/school-of-particles-and-accelerators-weekly-meeting

11:00 → 12:00 Probing anomalous triple and quartic gauge boson couplings via photon-photon scattering at the LHC

We explore the potential of the LHC to measure the rate of proton-proton collisions through the process of central exclusive production $ pp -> p WW \gamma p$ and prob the triple and quartic anomalous gauge boson couplings contributing to this process at the center of mass energy 13 TeV and integrated luminosity 300 fb^(-1). In addition to the presence of two opposite sign leptons, a photon, and missing energy, the distinctive signature of this process is the presence of two intact protons flying few millimeters from the initial beam direction in both sides of the interaction point which suppress the background process effectively. To exploit this feature of signal we benefit from forward detectors (FDs) placed about 200 meters from the interaction point to register the kinematics of tagged protons. The obtained expected limits show very good improvements for dimension-8 quartic couplings and competitive bounds on dimension-6 anomalous triple couplings w.r.t the current experimental limits.

Speaker: Dr Seddigheh Tizchang (IPM)

Slides tizchang.pdf