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Seminars and Journal Clubs
Tau Leptons' Reconstruction and Identification in CMS: Evolution and Latest Developments
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Europe/Brussels
E/3rd floor-E.349 - Seminar room (E.349) (Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve))
E/3rd floor-E.349 - Seminar room (E.349)
Marc de Hemptinne (chemin du Cyclotron, 2, Louvain-la-Neuve)
30
Description
Taus are the heaviest leptons in the Standard Model and decay purely via weak interaction, making them excellent probes of electroweak physics and for searches of new physics. Their short lifetime prevents a direct identification and reconstruction, which is then performed through their visible decay products. Since the LHC Run 1, the CMS Collaboration has developed dedicated algorithms to reconstruct hadronic tau decays, starting with the hadron-plus-strips algorithm built upon ParticleFlow reconstruction, and to identify them against hadronic showers, electrons, and muons. This talk will provide an overview of the evolution of tau reconstruction and identification in CMS, with a particular focus on the more recent machine learning-based developments.
