Conveners
Calorimetry: Calorimetry - 1
- Eno Sarah (U. Maryland)
Calorimetry: Calorimetry - 2
- Ren-yuan Zhu (Caltech)
Calorimetry: Calorimetry 3
- Roger Rusack (The University of Minnesota)
Calorimetry: Calorimetry - 5
- Ren-yuan Zhu (Caltech)
Calorimetry: Calorimetry - 4
- Roger Rusack (The University of Minnesota)
Digital Hadron Calorimetry
By Yasar Onel
University of Iowa, Iowa City, IA 52241, USA
On behalf of CALICE collaboration
Particle Flow Algorithms (PFAs) attempt to measure each particle in a hadronic jet individually, using the component or detector subsystem providing the best energy/momentum resolution. The application of PFAs has been shown to achieve energy resolutions of 3 – 4%...
Sampling calorimeters for high energy physics experiments often use plastic scintillator as the active medium due to its low cost and ease of use. However, response to radiation damage is a critical factor in detector design. This talk will present the effects of ionizing radiation on the signal produced by plastic scintillator rods for various substrate materials, dopant concentrations,...
Highly granular electromagnetic calorimeter based on scintillator strip with SiPM readout (Sc-ECAL) is under development in the framework of the CALICE collaboration for future electron-positron colliders such as ILC and CEPC. The detection layers with scintillator strips (45 mm × 5 mm × 2 mm each) coupled to SiPMs are stacked alternately in an orthogonal orientation. This technique achieves...
The CMS High Granularity Calorimeter (HGCAL) has been heavily influenced by designs for detectors at future colliders, and the experience gained in constructing it will be crucial to those future projects. Designed to function in the end cap region of CMS at the HL-LHC, the calorimeter must cope with extremely high particle flux while delivering good physics performance.
The HGCAL is...
The CALICE collaboration develops highly granular calorimeters for future particle physics experiments. The Analogue Hadron Calorimeter (AHCAL), a sampling calorimeter using small plastic scintillator tiles directly read out by silicon photomultipliers (SiPMs) as active material, is a scalable concept for the hadronic calorimeter, providing good energy, spatial and time resolution at moderate...
The performance of hadronic calorimeters will be a key parameter at the next generation of High Energy Physics accelerators. Energy resolution requirements might largely exceed the performance of today’s detectors and therefore, require the development of new hadronic calorimeter concepts that combine fine granularity, excellent time resolution and possibly dual readout capabilities. The goal...
Development of Novel Inorganic Scintillators for Future High Energy Physics Experiments
Chen Hu, Liyuan Zhang and Ren-Yuan Zhu
California Institute of Technology
Pasadena, CA 91125, USA
[zhu@hep.caltech.edu][1]
February 12, 2021
Total absorption electromagnetic calorimeters (ECAL) made of inorganic crystals provide the best energy resolution and detection efficiency for photon...
In the past, homogeneous electromagnetic calorimeters have allowed precision measurements of electrons and photons, while high granularity, dual-readout, and compensating calorimeters have been considered promising paths for improving hadronic measurements. In this talk, the possibility of using a homogeneous high-granularity crystal electromagnetic calorimeter using SiPMs photodetectors...
To address the challenges of providing high performance calorimetry and other types of instrumentation in future experiments under high luminosity and difficult radiation and pileup conditions, R&D is being conducted on promising optical-based technologies that can inform the design of future detectors, with emphasis on ultra-compactness, excellent energy resolution and spatial resolution, and...
At a future Higgs factory, detectors providing ultimate resolution will be required. A limitation to date has been the measurement of hadronic energy, this in contrast to the measurement of electromagnetic energy. Total absorption electromagnetic calorimeters made of inorganic crystals provide the best energy resolution and detection efficiency for the measurement of photons and electrons and...
We present various R&Ds of the dual-readout calorimeter for future collider projects. This presentation is based on six letters of interest submitted to Snowmass 2021 and they proposed various interesting studies related to the dual-readout calorimeter. In the letters, following topics are for future e+e- collider experiments (FCC-ee and CEPC): 1) fast optical photon transport at GEANT4, 2)...
Methods are presented for calibrating the hadron calorimeter system of the CMS detector at the LHC. The hadron calorimeters of the CMS experiment are sampling calorimeters of brass and scintillator, and are in the form of one central detector and two endcaps. These calorimeters cover pseudorapidities $|{\eta}| < 3$ and are positioned inside the solenoidal magnet. An outer calorimeter, outside...
Large new experiments are focusing on plastic scintillator for their detector design.
MATHUSLA, a proposed long-lived particle detector to be build near CMS at the LHC, plans to use scintillator as its active detector component. It foresees use of 1000+ tons of scintillator extrusions with WLS fiber readout into SIPMs. The spatial coordinate along the extrusion is formed by measuring the...
Heavy Ion program of the LHC offers great physics opportunities for CMS and ATLAS.
The Zero Degree Calorimeters (ZDC) are increasingly important for characterizing A+A, p+A, $\gamma$+A and $\gamma$+$\gamma$ collisions at the LHC and EIC.
We present the recent developments in radiation hard fast ZDCs by the ATLAS and CMS heavy ion groups to fully exploit the potential for the QCD physics...
We report on new results and simulations from the Askaryan Calorimeter Experiment (ACE) which uses the coherent microwave Cherenkov emission from high energy particle showers in dielectric-loaded waveguides as calorimetric timing layers with ~1 ps resolution. Above ACE's energy threshold, a single 5 cm thick (1.4 $X_0$) layer of ACE waveguides would provide ~1 ps timing resolution, 3D spatial...
The Electron Ion Collider (EIC) is a new facility that has been proposed in the US to study the structure of nuclear matter in the gluon dominated regime of QCD using Deep Inelastic Scattering (DIS) with precision electromagnetic probes. The project received DOE CD-0 approval in January 2020 and will be sited at Brookhaven National Laboratory. It will utilize the existing RHIC collider to...
We are developing a new type of electromagnetic calorimeter based on a SiW sampling design using silicon pixel sensors with digital readout. A binary readout is possible due to the pixel size of $\approx 30 \times 30 \, \mu \mathrm{m}^2$. At the same time, this unprecedented granularity allows us to measure electromagnetic shower properties with extreme detail. This kind of detector will have...
The “muon-to-electron conversion” (Mu2e) experiment at Fermilab will search for the Charged Lepton Flavour Violating neutrino-less coherent conversion -N(A,Z) e-N(A,Z) of a negative muon into an electron in the field of an aluminum nucleus. The observation of this process would be the unambiguous evidence of physics beyond the Standard Model. Mu2e detectors comprise a straw-tracker, an...
We report on benchtop measurements and analysis techniques that enable us to effectively segment a fiber hadronic calorimeter longitudinally by fast digitization of pulse shapes. By combining sub-nanosecond digitization and silicon photomultipliers in a fiber calorimeter, we propose an enhancement to the traditional dual readout design that would provide benefits of both high-granularity and...
We discuss techniques and materials to develop optimize the energy resolution in the long-term performance of calorimeters as required by the challenging environment of future colliders and high intensity experiments. We extend the Dual Readout/Cerenkov compensation by using 2 tile types, one sensitive to to e-m showers, such as quartz, aerogel, Teflon AF or other low index Cerenkov tiles, and...
Performance requirements for future calorimeter designs in the context of reconstruction of tens-of-TeV jets at 100 TeV colliders are discussed. Lateral cell segmentation was studied by reconstructing substructure variables for hadronic jets above 10~TeV in transverse momentum using the Geant4 simulations with a different granularity of calorimeter cells. The physics potential of timing layers...