The CALICE digital hadron calorimeter: calibration and response to pions and positrons

16th International Conference on Calorimetry in High Energy Physics

Bilki, B.^1,2

Argonne National Laboratory, Argonne

IL

60439, United States^1

University of Iowa, Iowa City

IA

52242, United States^2

关键词: Calibration procedure;    Digital hadron calorimeters;    Electroweak bosons;    Hadronic calorimeters;    Hadronic decays;    Particle flow algorithms;    Readout channels;    Resistive plate chambers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/587/1/012038/pdf
DOI  :  10.1088/1742-6596/587/1/012038

来源: IOP

【 摘 要 】

In order to measure the jet products of the hadronic decays of electroweak bosons in a future lepton collider with 3-4% resolution, a novel approach named Particle Flow Algorithms is proposed. The Particle Flow Algorithms attempt to measure each particle in a hadronic jet individually, using the detector providing the best energy/momentum resolution. The role of the hadronic calorimeters is to measure the neutral component of the hadronic jets. In this context, the CALICE Collaboration developed the Digital Hadron Calorimeter, which uses Resistive Plate Chambers as active media. The 1-bit resolution (digital) readout of 1 × 1 cm2pads achieves a world record in the number of readout channels already at the prototyping stage. Here we report on the results from the analysis of pion events of momenta between 2 to 60 GeV/c collected in the Fermilab test beam with an emphasis on the intricate calibration procedures.