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QCD or What? · Around

2018

QCD or What?

Heimel, Theo, Kasieczka, Gregor, Plehn, Tilman et al.

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Autoencoder networks, trained only on QCD jets, can be used to search for anomalies in jet-substructure.

We show how, based either on images or on 4-vectors, they identify jets from decays of arbitrary heavy resonances.
To control the backgrounds and the underlying systematics we can de-correlate the jet mass using an adversarial network.
Such an adversarial autoencoder allows for a general and at the same time easily controllable search for new physics.

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