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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Malcolm John

Associate Professor of Experimental Particle Physics

Research theme

  • Fundamental particles and interactions

Sub department

  • Particle Physics

Research groups

  • LHCb
malcolm.john@physics.ox.ac.uk
Telephone: 01865 (2)73401
Denys Wilkinson Building, room 670
  • About
  • Publications

Performance of a prototype RICH detector using Hybrid Photo-Diodes

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 456:3 (2001) 190-205

Authors:

N Harnew, Websdale, D, Bibby, JR, Wilkinson, GR
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Latest beam test results from RICH prototypes using hybrid photo detectors and multi anode PMTs

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 433:1 (1999) 159-163

Authors:

E Albrecht, M Alemi, G Barber, JH Bibby, NH Brook, A Duane, S Easo, L Eklund, V Gibson, T Gys, AW Halley, N Harnew, M John, D Piedigrossi, B Simmons, N Smale, P Teixeira-Dias, D Websdale, SA Wotton, K Wyllie

Abstract:

Beam tests were performed to investigate the performance of a prototype of the downstream ring imaging counter (RICH) of the LHCb using hybrid photodiodes and multi-anode photomultipliers. The Cerenkov angle resolution obtained for the three types of photodetectors tested agreed well with the expectations from simulations. Using 61-pixel hybrid photodiodes, a single photon resolution of 0.35 mrad was attained and the particle identification capability was demonstrated.
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First observation of Cherenkov ring images using hybrid photon detectors

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 411:2-3 (1998) 249-264

Authors:

E Albrecht, G Barber, JH Bibby, NH Brook, A Duane, M French, V Gibson, R Giles, AW Halley, N Harnew, M John, DG Miller, V O'Shea, R Schomaker, N Smale, D Websdale, G Wilkinson, SA Wotton

Abstract:

A ring-imaging Cherenkov detector, equipped with hybrid photon detectors, has been operated in a charged-particlc beam. Focussed ring images from various particle types were detected using silica aerogel, air and C4F10 gas radiators. The detector, a prototype for the CERN LHC-B experiment, is described and first observations are reported, © IWS Elsevier Science B.V. All rights reserved.
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Measurement of CP observables in B-->DK*+ decays using two and four body D final states

Journal of High Energy Physics Institute of Physics Publishing

Authors:

Sneha Malde, G wilkinson, Neville Harnew, M John, M Vesterinen
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Observation of an exotic narrow doubly charmed tetraquark

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