Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1822076 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2016 | 7 Pages |
Abstract
The high luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN is expected to provide instantaneous luminosities of 5Ã1034cmâ2sâ1. The high luminosities expected at the HL-LHC will be accompanied by a factor of 5-10 more pileup compared with LHC conditions in 2015, further increasing the challenge for particle identification and event reconstruction. Precision timing allows us to extend calorimetric measurements into such a high density environment by subtracting the energy deposits from pileup interactions. Calorimeters employing silicon as the active component have recently become a viable choice for the HL-LHC and future collider experiments which face very high radiation environments. In this paper, we present studies of basic calorimetric and precision timing measurements using a prototype composed of tungsten absorber and silicon sensor as the active medium. We show that for the bulk of electromagnetic showers induced by electrons in the range of 20-30Â GeV, we can achieve time resolutions better than 25Â ps per single pad sensor.
Keywords
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Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
A. Apresyan, G. Bolla, A. Bornheim, H. Kim, S. Los, C. Pena, E. Ramberg, A. Ronzhin, M. Spiropulu, S. Xie,