Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 64: Search for New Particles 5

T 64.4: Talk

Wednesday, March 23, 2022, 17:00–17:15, T-H23

Interpreting the ATLAS missing-energy-plus-jets measurement for New Physics — •Martin Habedank and Priscilla Pani — Deutsches Elektronen-Synchrotron (DESY)

The large dataset of 139 fb⁻¹ of proton–proton collisions at 13 TeV recorded with the ATLAS detector allows for a precise measurement of events with large missing transverse momentum and at least one jet. In the Standard Model, this final state can mostly be attributed to Z bosons being produced in association with jets, with subsequent decay of the Z boson into neutrinos. By correcting for detector effects, the measurement can thus make an important contribution to our Standard Model understanding and modelling.

However, various questions that cannot be answered within the framework of the Standard Model give rise to models predicting New Physics. Many of those – in particular when incorporating a Dark Matter candidate – also give rise to events with missing transverse momentum and one or more jets, rendering the mentioned measurement a powerful handle in constraining these models.

This talk gives insight into the approach taken by the mentioned measurement and progress on interpreting it with regard to New Physics models.