Constraining Gluonic Quartic Gauge Coupling Operators with gg→γγ

John Ellis; Shao-Feng Ge

doi:10.1103/PhysRevLett.121.041801

Constraining Gluonic Quartic Gauge Coupling Operators with gg→γγ

Phys Rev Lett. 2018 Jul 27;121(4):041801. doi: 10.1103/PhysRevLett.121.041801.

Authors

John Ellis¹, Shao-Feng Ge²

Affiliations

¹ Theoretical Particle Physics and Cosmology Group, Physics Department, King's College London, London WC2R 2LS, United Kingdom, National Institute of Chemical Physics and Biophysics, Rävala 10, 10143 Tallinn, Estonia, and Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland.
² Kavli IPMU, UTIAS, University of Tokyo, Kashiwa, Chiba 277-8583, Japan, and Department of Physics, University of California, Berkeley, California 94720, USA.

PMID: 30095959
DOI: 10.1103/PhysRevLett.121.041801

Abstract

Gluon-gluon to photon-photon scattering gg→γγ offers to the LHC experiments a uniquely powerful probe of dimension-8 operators in the standard model effective field theory 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. 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.