Work Package 1 – Sandwich calorimeters with fully embedded electronics 

The devices studied in this work package seek to produce high-resolution images in 3 dimensions of the final state of particle collisions. With the inclusion of time and energy, five quantities are available per active element. The overarching goal is to provide calorimeters optimised for the application of Particle Flow Algorithms (PFAs). They should therefore provide an excellent particle separation complementing high-resolution tracking. The combination of the information of the two (calorimetry and tracking) systems aims at a jet energy resolution of 3-4%, which is the design goal for future both linear and circular Higgs factories. This will allow for efficient separation of the 2-jet final states of Z, W and Higgs bosons. The 3D granularity is at least two orders of magnitude higher than what is proposed for calorimeters in other Work Packages. In addition, an almost 4π coverage with little room for services is required to optimally exploit the potential of these imaging calorimeters.

Maybe more than others, this type of detector requires a holistic approach, i.e. to take special care of high-level system integration already during the R&D phase. This applies in particular to the embedding of the front-end electronics into the detector volume. In turn, these front-end electronics have to feature low-power consumption without compromising performance.

Coordinators: Lucia Masetti (masetti@uni-mainz.de), Adrian Irles (adrian.irles@ific.uv.es)