title: Performance of the LHCb RICH detector at the LHC.
abstract: The LHCb experiment has been taking data at the Large Hadron Collider (LHC) at CERN since the end of 2009. One of its key detector components is the Ring-Imaging Cherenkov (RICH) system. This provides charged particle identification over a wide momentum range, from 2-100 GeV/c. The operation and control, software, and online monitoring of the RICH system are described. The particle identification performance is presented, as measured using data from the LHC. Excellent separation of hadronic particle types (π, K, p) is achieved.
authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
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authors: Adinolfi
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Aglieri Rinella
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
authors: E
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authors: Albrecht
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
authors: T
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authors: Bellunato
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
authors: S
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authors: Benson
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland ; Imperial College London, London, UK.
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authors: Blake
authors: Imperial College London, London, UK.
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authors: Blanks
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Brisbane
authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
authors: N H
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authors: Brook
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Calvi
authors: Imperial College London, London, UK.
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authors: Cameron
authors: Sezione INFN di Genova, Genova, Italy.
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authors: Cardinale
authors: Imperial College London, London, UK.
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authors: Carson
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Contu
authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
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authors: Coombes
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: D'Ambrosio
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland ; STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Easo
authors: Imperial College London, London, UK.
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authors: Egede
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Eisenhardt
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Fanchini
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Fitzpatrick
authors: Sezione INFN di Genova, Genova, Italy.
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authors: Fontanelli
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Frei
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Gandini
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Garra Tico
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Giachero
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Gibson
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Gotti
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Gregson
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
authors: T
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authors: Gys
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
authors: S C
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authors: Haines
authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
authors: T
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authors: Hampson
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Harnew
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Hill
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Jones
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Johnson
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Kanaya
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Katvars
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Kerzel
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Kim
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Koblitz
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Kucharczyk
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Lambert
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Main
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
authors: M
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authors: Maino
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Malde
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Mangiafave
authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Matteuzzi
authors: Sezione INFN di Genova, Genova, Italy.
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authors: Mini'
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Morant
authors: Syracuse University, Syracuse, NY USA.
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authors: Mountain
authors: STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Morris
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Muheim
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Nardulli
authors: Imperial College London, London, UK.
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authors: STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Imperial College London, London, UK.
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authors: STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Sezione INFN di Milano Bicocca, Milano, Italy.
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authors: Sezione INFN di Genova, Genova, Italy.
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authors: Petrolini
authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Piedigrossi
authors: Imperial College London, London, UK.
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authors: Plackett
authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: Playfer
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Powell
authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
authors: J H
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authors: Rademacker
authors: STFC Rutherford Appleton Laboratory, Didcot, UK.
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authors: Ricciardi
authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Rogers
authors: School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
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authors: Sezione INFN di Genova, Genova, Italy.
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authors: Sannino
authors: Imperial College London, London, UK.
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authors: Imperial College London, London, UK.
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authors: Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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authors: Sigurdsson
authors: School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
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authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
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authors: Imperial College London, London, UK.
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authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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authors: School of Physics and Astronomy, University of Glasgow, Glasgow, UK.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Storaci
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: Topp-Joergensen
authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
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authors: Imperial College London, London, UK.
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authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: European Organization for Nuclear Research (CERN), Geneva, Switzerland.
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authors: Department of Physics, University of Oxford, Oxford, UK.
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authors: School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK.
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