Julia Isabell Djuvsland

arXiv2017

Particle Physics Masterclasses for the International Day of Women and Girls in Science

On the occasion of the UN International Day of Women and Girls in Science (February 11) Masterclass activities were launched by the International Particle Physics Outreach Group to support and promote the access of women and girls to science education and research activities. Universities and research laboratories organised 10 Masterclasses for girls on February 10 and 11, with participation from Barcelona, Cagliari, Cosenza, Heidelberg, Madrid, Paris, Prague, Rio de Janeiro, and Sao Paulo. About 300 girls participated in the events and analysed LHC data while being tutored by female scientists. Three video conferences with CERN were held where the girls could talk to CERN women scientists and learn about the careers of these role models.

physics.soc-ph↗

arXiv2017

Studying $WWγ$ and $WZγ$ production in proton-proton collisions at $\sqrt{s} = 8$ TeV with the ATLAS experiment

Quartic gauge couplings are tested by this study of the production of $WWγ$ and $WZγ$ events in 20.2 fb$^{-1}$ of proton--proton collisions at a centre-of-mass energy of $\sqrt{s} = 8$ TeV recorded with the ATLAS detector at the LHC. The final state of $WWγ$ events containing an electron, a muon and a photon is analysed as well as the final states of $WWγ$ and $WZγ$ production containing an electron or a muon, two jets and a photon. For all final states two different fiducial regions are defined: one yielding the best sensitivity to the production cross-section of the process and one optimised for the detection of new physical phenomena. In the former region, the $WWγ$ production cross-section is computed and in both regions, upper limits on the $WWγ$ and $WZγ$ production cross-section are derived. The results obtained in the second phase space are combined for the interpretation in the context of anomalous quartic gauge couplings using an effective field theory.

hep-ex↗