Speaker
Description
Several future collider experiments are proposed for precise measurement of Higgs that require calorimeter technology with excellent jet energy resolution. To fulfill the requirement, this study aims to develop next-generation calorimetry that combines "particle flow calorimetry" and "dual-readout calorimetry". For the aspect of particle flow calorimetry, highly segmented readouts are implemented in the active layers. At the same time, for the aspect of dual-readout calorimetry, two different kinds of signal generation: scintillation and Cherenkov radiation are used to improve energy reconstruction for hadrons. This study also turns the spotlight on the timing measurement of the calorimeter. It is to establish a detector technology of picosecond-level time resolution for a large detection area and to investigate the impact of timing information as additional input for particle flow or cut for background reduction. As a result, the proposed calorimetry precisely measures not only energy but also position and timing and opens access to the "5D calorimeter".
To realize such a concept, a Cherenkov detector with highly segmented readouts and picosecond-level timing resolution that can cover a large area is required. Cherenkov light generated by charged particles is converted to photoelectrons by a photocathode and subsequently amplified by the Resistive Plate Chamber (RPC) is one candidate for such a detector. Notably, the amplification layer utilizes an RPC with a Diamond-like Carbon (DLC) electrode, providing high-rate capability overcoming the conventional drawbacks of RPCs.
This presentation describes the demonstration of the detector concept of the Cherenkov detector.
| Apply for poster award | Yes |
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