Abramowicz H., Abusleme A., Bortko L., Borysov O., Borysova M., Boovic-Jelisavcic I., Chelkov G., Daniluk W., Dannheim D., Elsener K., Firlej M., Firu E., Fiutowski T., Ghenescu V., Gotskin M., Hempel M., et al. (2018)

Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up

Revista : European Physical Journal C
Volumen : 78
Páginas : 18pp
Tipo de publicación : ISI Ir a publicación

Abstract

A prototype of a luminometer, designed for a future e+e−e+e− collider detector, and consisting at present of a four-plane module, was tested in the CERN PS accelerator T9 beam. The objective of this beam test was to demonstrate a multi-plane tungsten/silicon operation, to study the development of the electromagnetic shower and to compare it with MC simulations. The Molière radius has been determined to be 24.0 ± 0.6 (stat.) ± 1.5 (syst.) mm using a parametrization of the shower shape. Very good agreement was found between data and a detailed Geant4 simulation.