Thursday 28 March 2024 |
Events for day: Tuesday 31 July 2018 |
11:00 - 12:00 Particles Phenomenology Journal Club Constraining Gluonic-Quartic Gauge Coupling Operators with gg yy School PARTICLES AND ACCELERATORS Based on "1802.02416[hep-ph]" Gluon-gluon to photon-photon scattering gg yy offers to the LHC experiments a uniquely powerful probe of dimension-8 operators in the Standard Model Effective Field Theory (SMEFT) that are quadratic in both the electromagnetic and gluonic field-strength tensors, such as would appear in the Born-Infeld extension of the Standard Model (SM). We use 13-TeV ATLAS data on the production of isolated photon pairs to set lower limits on the scales of dimension-8 operators M & 1 TeV, and discuss the prospective sensitivities of possible future hadron colliders. Larak Seminar Room |