• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/069/06/1075-1078

    • Keywords

       

      International linear collider; dual readout; calorimetry.

    • Abstract

       

      Measuring the energy of hadronic jets with high precision is essential at present and future colliders, in particular at ILC. The 4th concept design is built upon calorimetry criteria that result in the DREAM prototype, read-out via two different types of longitudinal fibers, scintillator and quartz respectively, and therefore capable of determining for each shower the corresponding electromagnetic fraction, thus eliminating the strong effect of fluctuations in this fraction on the overall energy resolution. In this respect, 4th is orthogonal to the other three concepts, which rely on particle flow analysis (PFA). The DREAM test-beam results hold promises for excellent performances, coupled with relatively simple construction and moderate costs, making such a solution an interesting alternative to the PFA paradigm. The next foreseen steps are to extend the dual-readout principle to homogeneous calorimeters (with the potential of achieving even better performances) and to tackle another source of fluctuation in hadronic showers, originating from binding energy losses in nuclear break-up (measuring neutrons of few MeV energy).

    • Author Affiliations

       

      Aldo Penzo1 on behalf of 4th Concept and DREAM

      1. INFN-Sezione di Trieste, Area di Ricerca, Padriciano, Trieste, Italy
    • Dates

       
  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.