Separation of two overlapping electromagnetic or electromagnetic — hadronic showers in CALICE highly granular physical calorimeter prototype
Résumé
CALICE collaboration is developing highly granular calorimeters for future high energy e+e- colliders. Using Particle Flow Algorithms for individual reconstruction of particles in the jets, they provide currently the best jet energy resolution. At high jet energies (typically above 70-100GeV in the proposed detectors), the jet particle showers start to overlap, and the resolution is determined by the ability to separate them. Here, we present results on the separation power of: 1) two overlapping electromagnetic showers with CALICE physics prototype of silicon-tungsten electromagnetic calorimeter (SiW ECAL); 2) electromagnetic-hadronic showers with physics prototypes of SiW ECAL and analog scintillator-iron hadronic calorimeter (AHCAL). We use three available reconstruction programs and compare the results with a Monte Carlo simulation.
Mots clés
ILC
CALICE
SiW ECAL
physics prototype
PFA
particle separation
Pandora
Garlic
Arbor
Electromagnetics
Prototypes
Physics
Energy resolution
Detectors
Collaboration
Monte Carlo methods
particle calorimetry
scintillation counters
silicon radiation detectors
analog scintillator-iron hadronic calorimeter
CALICE highly granular physical calorimeter prototype
CALICE collaboration
Particle Flow Algorithms
jet energy resolution
jet particle showers
separation power
electromagnetic calorimeter
electromagnetic-hadronic showers
CALICE physics prototype
silicon-tungsten electromagnetic calorimeter
high-energy electron-positron colliders
electron volt energy 70.0 GeV to 100.0 GeV
calorimeter: electromagnetic
silicon
tungsten
jet: energy resolution
showers: electromagnetic
showers: hadronic
numerical calculations: Monte Carlo
scintillation counter