R&D FOR HIGHLY GRANULAR CALORIMETERS
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R&D FOR HIGHLY GRANULAR CALORIMETERS Roman Pöschl on behalf of the CALICE Collaboration - Need excellent jet energy resolution to separate e.g. W and Z boson in their hadronic decays - 3%/E jet -4%/E jet which is two times better than at LE - Physics goals at future lepton collider requires granular calorimeters W, Z separation in the ILD concept Large R&D program of CALICE Collaboration Hadron showers in great detail ivation – Precision physics at future lepton colli Different stages of a hadron shower Counting track segments Particle separation reconstruction – Time structure of hadron showers Unravelling the origin of electroweak symmetry bre Analysis of beam test data and simulation studies Electromagnetic calorimeters Tungsten as absorber Silicon or scintillator as active medium 0.18x.0.18x0.2 m 3 of detection volume equipped with up to 10000 cells Different technologies under one roof Hadron calorimeters Steel or tungsten as absorber Scintillator as active medium or Glass RPCs a active medium RPCs allow for realisation of detection volume with ~480000 calorimetric cells in World record!!!! - Construction of prototypes - Technological challenges - SiPM, power pulsed electronics - (Combined) beam tests with prototypes since 2004 at CERN, DESY and Fermilab Primary particle Secondaries 1st Interaction 2nd Interaction
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R&D FOR HIGHLY GRANULAR CALORIMETERS. Roman Pöschl on behalf of the CALICE Collaboration. Motivation – Precision physics at future lepton colliders. W, Z separation in the ILD concept. - PowerPoint PPT Presentation
Transcript of R&D FOR HIGHLY GRANULAR CALORIMETERS
R&D FOR HIGHLY GRANULAR CALORIMETERS
Roman Pöschl on behalf of the CALICE Collaboration
- Need excellent jet energy resolution to separate e.g. W and Z boson in their hadronic decays- 3%/Ejet-4%/Ejet which is two times better than at LEP or SLC- Physics goals at future lepton collider requires highly granular calorimeters
W, Z separation in the ILD concept
Large R&D program of CALICE Collaboration
Hadron showers in great detail
Motivation – Precision physics at future lepton colliders
Different stages of a hadron shower
Counting track segments
Particle separation4D reconstruction – Time structure of hadron showers
Unravelling the origin of electroweak symmetry breaking
Analysis of beam test data and simulation studies
Electromagnetic calorimeters
Tungsten as absorberSilicon or scintillator as active medium0.18x.0.18x0.2 m3 of detection volume equipped with up to 10000 cells
Different technologies under one roof
Hadron calorimeters
Steel or tungsten as absorberScintillator as active medium orGlass RPCs a active mediumRPCs allow for realisation of detectionvolume with ~480000 calorimetric cells in 1m3 World record!!!!
- Construction of prototypes- Technological challenges - SiPM, power pulsed electronics- (Combined) beam tests with prototypes since 2004 at CERN, DESY and Fermilab
Primary particleSecondaries
1st Interaction2nd Interaction
