TORCH, a novel time-of-flight detector for LHCb Upgrade-II
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Kreps, Michal1
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Bhasin, Srishti2
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Blake, Thomas1
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Brook, Nick3
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Cicala, Flavia1
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Cussans, David2
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Davidson, Alexander1
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Van Dijk, Maarten4
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Forty, Roger4
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Frei, Christoph4
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Gabriel, Emmy5
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Gao, Rui6
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Garcia Martin, Luis Miguel1
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Gershon, Timothy1
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Gys, Thierry4
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Hadavizadeh, Thomas7
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Hancock, Thomas6
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Harnew, Neville6
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Jones, Thomas1
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Korpar, Samo8
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Lehuraux, Marion1
- Loutit, Magnus2
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Muheim, Franz9
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Petonik, Rok8
- Piedigrossi, Didier4
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Polyakov, Ivan4
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Rademacker, Jonas2
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Smallwood, Jennifer6
- Spenko, Kristof8
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Tat, Martin6
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Trilov, Stoyan2
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Wilkinson, Guy6
- 1. University of Warwick
- 2. University of Bristol
- 3. University of Bath
- 4. CERN
- 5. University of Edinburgh
- 6. University of Oxford
- 7. Monash University
- 8. Stefan Institute, Ljubljana
- 9. University of Edunburgh
Description
The Time Of internally Reflected Cherenkov (TORCH) detector is a proposed large-area time-of-flight detector, designed to enhance the particle identification performance of the LHCb Upgrade-II experiment in the 2–-15 GeV/c momentum range. The full TORCH detector comprises 18 modules. A module consists of a 10 mm thick quartz plate of dimensions 2.5x0.66 m2 from which the positions and arrival times of Cherenkov photons from a charged track are detected by highly segmented MCP-PMTs. Each MCP-PMT has an active area of 53x53 mm2 and a granularity of 64x8 pixels, and was developed in collaboration with an industrial partner (Photek). A general overview of TORCH and its operating principles will be reviewed along with recent results from a half-length 1.25 m TORCH prototype module tested at the CERN proton synchrotron. In the most recent beam test in November 2022, the prototype module was instrumented with six MCP-PMTs compared to two MCP-PMTs in previous tests. The status of the analysis of the latest data will be presented.
Proceedings for poster presented at Lepton-Photon 2023.