First LHC beam induced tracks reconstructed in the LHCb VELO

C. Parkes, S. Borghi, A. Bates, L. Eklund, M. Gersabeck, F. Marinho, B. Rakotomiaramanana, E. Rodrigues, T. Szumlak, A. Affolder, T. Bowcock, G. Casse, S. Donleavy, K. Hennessy, T. Huse, D. Hutchcroft, J. Mylroie-Smith, A. Noor, G. Patel, K. RinnertN. A. Smith, T. Shears, M. Tobin, M. John, A. Bay, R. Frei, G. Haefeli, A. Keune, J. Anderson, R. McNulty, S. Traynor, S. Basiladze, A. Leflat, M. Artuso, A. Borgia, G. Lefeuvre, R. Mountain, J. Wang, K. Akiba, M. van Beuzekom, E. Jans, T. Ketel, I. Mous, A. Papadelis, A. Van Lysebetten, B. Verlaat, H. de Vries, O. Behrendt, J. Buytaert, S. de Capua, P. Collins, M. Ferro-Luzzi

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The Vertex Locator of the LHCb experiment has been used to fully reconstruct beam induced tracks at the LHC. A beam of protons was collided with a beam absorber during the LHC synchronisation test of the anti-clockwise beam on the weekend 22nd-24th August 2008. The resulting particles have been observed by the Vertex Locator. The LHCb Vertex Locator is a silicon micro-strip detector containing 21 planes of modules. Tracks were observed passing through up to 19 modules (38 silicon sensors). A total of over 700 tracks were reconstructed, and are being used to study the calibration and alignment of the detector.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
StatePublished - Jun 1 2009


  • LHC
  • LHCb
  • Microstrip
  • Silicon

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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