Abstract
The TORCH detector aims to provide K/π (K/p) separation up to a momentum of about 10 (15) [Formula presented] by measuring their time-of-flight at the LHCb detector. Prompt Cherenkov photons are produced in a quartz radiator bar of 10 mm thickness, and propagated via total internal reflection to the periphery of the detector, where they are focused onto an array of microchannel plate photomultipliers that measure the photon arrival time and position. Pattern recognition techniques are used to compare the likelihood that the detector image is due to a given particle hypothesis. Good performance is obtained even for very high detector occupancies.
Original language | English |
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Article number | 168437 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 1055 |
Early online date | 20 Jun 2023 |
DOIs | |
Publication status | Published - 31 Oct 2023 |
Bibliographical note
Funding Information:The support is acknowledged of the Science and Technology Research Council, UK , grant number ST/P002692/1 , of the European Research Council through an FP7 Advanced Grant ( ERC-2011-AdG 299175-TORCH ) and of the Royal Society, UK .
Funding
The support is acknowledged of the Science and Technology Research Council, UK , grant number ST/P002692/1 , of the European Research Council through an FP7 Advanced Grant ( ERC-2011-AdG 299175-TORCH ) and of the Royal Society, UK .
Keywords
- Particle identification
- Time-Of-Flight detectors
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation