Feb 18 – 22, 2019
Vienna University of Technology
Europe/Vienna timezone

Dual-readout calorimetry, an integrate high-resolution solution for energy measurements at future electron-positron colliders

Feb 20, 2019, 11:55 AM


Talk Calorimeters Miscellaneous


Lorenzo Pezzotti (Universita and INFN (IT))


Traditional energy measurements in hadron detection have always been spoiled by the non-compensation problem. Hadronic showers develop an electromagnetic component, from neutral mesons’ decays, over-imposed on the non electromagnetic component. As the two are typically sampled with very different responses, fluctuations between them directly spoil the hadronic energy resolution. Dual-readout calorimetry allows to reconstruct the electromagnetic component on an event-by-event basis and correct the energy measurements for its fluctuations, thus providing a significant step towards the ultimate energy resolution in hadron and jet detection. The IDEA detector proposal for the CepC and FCC-ee future collider, devises a single dual-readout calorimeter, for electromagnetic, hadronic and jet energy measurements. In this talk, the main developments required to bring the technique to an effective solution will be presented. Results from full simulations of a standalone calorimeter indicates that an energy resolution in hadron detection of $\frac{\sigma}{E} = \frac{30\%}{\sqrt{E}}$ is reachable. A possible full-coverage $4\pi$ geometry is under development, with full simulations, as well. From the hardware side, results from a new dual-readout prototype optimized for electron/hadron identification in a multi particle environment and tested at the recent IDEA vertical slice test beam will be presented as well.

Primary author

Lorenzo Pezzotti (Universita and INFN (IT))


Prof. Massimo Caccia (Università degli Studi dell'Insubria) Dr Romualdo Santoro (Università degli Studi dell'Insubria) Massimiliano Antonello (Università degli Studi e INFN Milano (IT)) Gabriella Gaudio (Dipartimento di Fisica Nucleare e Teorica) Roberto Ferrari (INFN Pavia (IT)) Richard wigmans (Texas Tech) Silvia Franchino (CERN) John Michael Hauptman (Iowa State University (US)) Seh Wook Lee (Kyungpook National University (KR))

Presentation materials