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Andrew C Haas

Publications and source records attributed to Andrew C Haas.

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`That looks weird' - evaluating citizen scientists' ability to detect unusual features in ATLAS images of LHC collisions

Using data from the HiggsHunters.org project we investigate the ability of non-expert citizen scientists to identify long-lived particles, and other unusual features, in images of LHC collisions recorded by the ATLAS experiment. More than 32,000 volunteers from 179 countries participated, classifying 1,200,000 features of interest on about 39,000 distinct images. We find that the non-expert volunteers are capable of identifying the decays of long-lived particles with an efficiency and fake-rate comparable to that of the ATLAS algorithms. Volunteers also picked out events with unexpected features, including what appeared to be an event containing a jet of muons.

physics.soc-ph

Citizen Scientist Community Engagement with the HiggsHunters project at the Large Hadron Collider

The engagement of Citizen Scientists with the HiggsHunters.org citizen science project is investigated through analysis of behaviour, discussion, and survey data. More than 37,000 Citizen Scientists from 179 countries participated, classifying 1,500,000 features of interest on about 39,000 distinct images. While most Citizen Scientists classified only a handful of images, some classified hundreds or even thousands. Analysis of frequently-used terms on the dedicated discussion forum demonstrated that a high level of scientific engagement was not uncommon. Evidence was found for a emergent and distinct technical vocabulary developing within the Citizen Science community. A survey indicates a high level of engagement and an appetite for further LHC-related citizen science projects.

physics.pop-ph