Phase-I Trigger Readout Electronics Upgrade for the ATLAS Liquid-Argon Calorimeters

  • Alessandra CamplaniEmail author
  • on behalf of the ATLAS Liquid Argon Calorimeter group
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 212)


The upgrade of the Large Hadron Collider scheduled for the Long Shut-down period of 2019–2020, referred to as Phase-I upgrade, will increase the instantaneous luminosity to about three times the design value. Since the current ATLAS trigger system does not allow sufficient increase of the trigger rate, an improvement of the trigger system is required. The Liquid Argon (LAr) Calorimeter read-out will therefore be modified to use digital trigger signals with a higher spatial granularity in order to improve the identification efficiencies of electrons, photons, tau, jets and missing energy, at high background rejection rates at the Level-1 trigger.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Alessandra Camplani
    • 1
    • 2
    Email author
  • on behalf of the ATLAS Liquid Argon Calorimeter group
  1. 1.Dipartimento di FisicaUniversitá degli Studi di MilanoMilanItaly
  2. 2.I.N.F.N.MilanItaly

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