14–18 Sept 2026
Europe/Vienna timezone

Improving direct background estimation for resonant anomaly detection

17 Sept 2026, 10:50
20m

Speaker

Mark Fanselow (RWTH Aachen University)

Description

Resonant anomaly detection is a promising strategy for extending the reach of bump-hunt searches at the LHC. In a weakly supervised setup, a high-quality background template is essential to produce an anomaly score but can serve a second purpose: It allows to directly estimate the background expectation in a simple cut and count setup, removing the problem of background sculpting. For imperfect background templates, the expected number of selected events from the signal region and, in particular, the corresponding systematic uncertainty needs to be well understood. I will present an improved, statistically robust determination of these quantities and discuss the resulting sensitivity of the method.

Author

Mark Fanselow (RWTH Aachen University)

Co-authors

Alexander Mück Marie Hein (RWTH Aachen University) Michael Krämer (RWTH Aachen University)

Presentation materials

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