Experimental Tests of Particle Flow Calorimetry

TL;DR

This paper reviews over a decade of research and testing on highly granular particle flow calorimeters, demonstrating their effectiveness for future collider experiments through beam tests and simulation comparisons.

Contribution

It provides a comprehensive review of the development, testing, and validation of particle flow calorimeters, highlighting advancements in detector performance and simulation accuracy.

Findings

Beam tests validate the technical concept of particle flow calorimeters.

Test beam data aligns well with simulations, enhancing detector modeling.

Deeper insights into hadronic shower structures were achieved.

Abstract

Precision physics at future colliders requires highly granular calorimeters to support the Particle Flow Approach for event reconstruction. This article presents a review of about 10 - 15 years of R\&D, mainly conducted within the CALICE collaboration, for this novel type of detector. The performance of large scale prototypes in beam tests validate the technical concept of particle flow calorimeters. The comparison of test beam data with simulation, of e.g.\ hadronic showers, supports full detector studies and gives deeper insight into the structure of hadronic cascades than was possible previously.