10-16 June 2018
Dalhousie University
America/Halifax timezone
Welcome to the 2018 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2018!

Search for dark matter candidates produced in Z(ll) + ETmiss events in 13 TeV proton-proton collisions with the ATLAS detector at the Large Hadron Collider (G)

13 Jun 2018, 14:00
Dunn 135 (cap. 82) (Dalhousie University)

Dunn 135 (cap. 82)

Dalhousie University

Oral (Graduate Student) / Orale (Étudiant(e) du 2e ou 3e cycle) Particle Physics / Physique des particules (PPD) W3-6 Particle Physics VIII (PPD) I Physique des particules VIII (PPD)


Kayla McLean (University of Victoria (CA))


The ATLAS detector has been in an intense period of data-taking since the start of Run 2 in 2015. With 86 fb-1 collected so far, the prospects for discovering dark matter at the LHC have never been higher. WIMP dark matter may be produced in proton-proton collisions, yielding an excess of collision events with a large amount of invisible missing transverse momentum (ETmiss); such a process could cause a significant recoil in the other Standard Model particles produced in the event. A leptonically decaying Z boson is used as the recoiling tag particle in these mono-Z(ll) signatures. In this talk an overview of the analysis will be presented, including the signal models studied, major backgrounds and their estimation techniques, and the procedure used to set limits on the dark matter particles. Results will be presented, and prospects for this search using the full 2015-2018 Run 2 dataset will be discussed.

Primary author

Kayla McLean (University of Victoria (CA))

Presentation Materials