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The ATLAS Hadronic Tau Trigger: Initial Run-2 Strategy and Performance

As proton-proton collisions at the LHC reach instantaneous luminosities of over 10 34cm-2s-1, and a centre-of-mass energy of 13 TeV, the strategies for triggering have become more important than ever for physics analyses. In these conditions, single tau lepton triggers suffer from severe rate limita...

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Detalles Bibliográficos
Autor principal: Pickering, Mark Andrew
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:http://cds.cern.ch/record/2058716
Descripción
Sumario:As proton-proton collisions at the LHC reach instantaneous luminosities of over 10 34cm-2s-1, and a centre-of-mass energy of 13 TeV, the strategies for triggering have become more important than ever for physics analyses. In these conditions, single tau lepton triggers suffer from severe rate limitations, despite the sophisticated algorithms used in the tau identification. The development of further fast algorithms and the design of topological selections are the main challenges to allow a large program of physics analysis. The tau triggers provide many opportunities to study new physics beyond the Standard Model, and to get precise measurements of the properties of the Higgs boson decaying to tau-leptons. Presented here is the strategy for Run-2 data-taking and the initial performance of the ATLAS tau trigger with a dataset corresponding to an integrated luminosity of 78.3 pb-1 of 13TeV.