Characterisation of different stages of hadronic showers using the CALICE Si-W ECAL physics prototype

G. Eigen , T. Price , N.K. Watson , A. Winter , Y. Do , A. Khan , D. Kim , G.C. Blazey , A. Dyshkant , K. Francis , V. Zutshi , K. Kawagoe , Y. Miura , R. Mori , I. Sekiya , T. Suehara , T. Yoshioka , J. Apostolakis , J. Giraud (1) , D. Grondin (1) , J.-Y. Hostachy (1) , O. Bach , V. Bocharnikov , E. Brianne , K. Gadow , P. Gottlicher , O. Hartbrich , D. Heuchel , F. Krivan , K. Krüger , J. Kvasnicka , S. Lu , O. Pinto , A. Provenza , M. Reinecke , F. Sefkow , S. Schuwalow , Y. Sudo , H.L. Tran , P. Buhmann , E. Garutti , S. Laurien , D. Lomidze , M. Matysek , G.W. Wilson , D. Belver , E. Calvo Alamillo , M.C. Fouz , H. Garcia Cabrera , J. Marin , J. Navarrete , J. Puerta Pelayo , A. Verdugo , L. Masetti , M. Chadeeva , M. Danilov , M. Gabriel , L. Emberger , C. Graf , Y. Israeli , F. Simon , M. Szalay , H. Windel , M.S. Amjad (2) , S. Bilokin (2) , J. Bonis (2) , D. Breton (2) , P. Cornebise (2) , P. Doublet (2) , A. Gallas (2) , J. Jeglot (2) , A. Irles (2) , H. Li (2) , J. Maalmi (2) , R. Poschl (2) , A. Thiebault (2) , F. Richard (2) , D. Zerwas (2) , M. Anduze (3) , V. Balagura (3) , E. Becheva (3) , V. Boudry (3) , J-C. Brient (3) , R. Cornat (3) , E. Edy (3) , G. Fayolle (3) , F. Gastaldi (3) , H. Videau (3) , S. Callier (4) , F. Dulucq (4) , C. de la Taille (4) , G. Martin-Chassard (4) , L. Raux (4) , N. Seguin-Moreau (4) , J. Cvach , M. Janata , M. Kovalcuk , I. Polak , J. Smolik , V. Vrba , J. Zalesak , J. Zuklin , D. Jeans , N. van der Kolk , T. Peitzmann

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 LAL - Laboratoire de l'Accélérateur Linéaire
3 LLR - Laboratoire Leprince-Ringuet
4 OMEGA - Organisation de Micro-Électronique Générale Avancée

A detailed investigation of hadronic interactions is performed using $\pi^{-}$ -mesons with energies in the range 2–10 GeV incident on a high granularity silicon–tungsten electromagnetic calorimeter. The data were recorded at FNAL in 2008. The region in which the $\pi^{-}$ -mesons interact with the detector material and the produced secondary particles are characterised using a novel track-finding algorithm that reconstructs tracks within hadronic showers in a calorimeter in the absence of a magnetic field. The principle of carrying out detector monitoring and calibration using secondary tracks is also demonstrated.

Mots clés: CALICE; pi-: beam; track data analysis; data analysis method; performance; Calorimeters; silicon–tungsten; high-granularity; hadronic showers; showers: hadronic; calorimeter: electromagnetic; silicon; tungsten; monitoring; magnetic field; calibration

Domaines: Instrumentations et Détecteurs [physics.ins-det]

G. Eigen, T. Price, N.K. Watson, A. Winter, Y. Do, et al.. Characterisation of different stages of hadronic showers using the CALICE Si-W ECAL physics prototype. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, 937, pp.41-52. ⟨10.1016/j.nima.2019.04.111⟩. ⟨hal-02404768⟩