Speaker
Description
The Future Circular Collider in its first stage, an electron-positron collider (FCC-ee), presents a broad physics program with multiple challenges for detector design. It aims to enable precision measurements of the electroweak sector at an unprecedented level and facilitate searches for new particles weakly coupled to the Standard Model. ALLEGRO is one of the proposed detector concepts suitable for FCC-ee.
The electromagnetic calorimeter (ECAL) in ALLEGRO will utilize noble liquid technology, developed as a part of the Detector R&D Collaboration for Calorimeters (DRD6). The ECAL design has been optimized for FCC-ee, featuring a multilayer structure with straight readout electrodes that enable fine segmentation. This high granularity is crucial for advanced reconstruction techniques, including machine learning algorithms and particle flow methods. The performance of the readout electrodes will be discussed based on experimental measurements and compared with simulation results.
Additionally, intensive R&D efforts on the mechanical structure of the calorimeter (including absorber plates, support structures, and spacers) will be presented, along with progress toward a beam test prototype. The integration of the ALLEGRO detector geometry and reconstruction algorithms within the key4hep software framework will also be covered, highlighting expected performance.
