First spatial alignment of the LHCb VELO and analysis of beam absorber collision data

Borghi, S. et al. (2010) First spatial alignment of the LHCb VELO and analysis of beam absorber collision data. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 618(1-3), pp. 108-120. (doi: 10.1016/j.nima.2010.02.109)

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Abstract

A first alignment of the LHCb Vertex Locator has been obtained from beam induced tracks at the LHC. A 450 GeV/c protons were collided on a beam absorber during the LHC synchronisation tests of the anti-clockwise beam in August and September 2008. The resulting particle tracks have been reconstructed by the Vertex Locator. This was the first full reconstruction of tracks induced by the LHC beam. The quality of the data obtained is discussed. A total of 2200 tracks were reconstructed from the full data sample, and a first spatial alignment was obtained. The detector is aligned to an accuracy of <sub>10µm</sub> in the sensor plane. The results confirm that all detector modules have not been displaced from their surveyed positions by more than <sub>10µm</sub>

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Rakotomiaramanana, Mr Barinjaka and Marinho, Mr Franciole and Szumlak, Professor Tomasz and Gersabeck, Mr Marco and Borghi, Dr Silvia and Rodrigues, Dr Eduardo and Eklund, Professor Lars and Bates, Mrs Alison and Anderson, Miss Jenny and Parkes, Dr Christopher
Authors: Borghi, S., Gersabeck, M., Parkes, C., Szumlak, T., Affolder, A., Akiba, K., Anderson, J., Artuso, M., Basiladze, S., Bates, A., Bay, A., Behrendt, O., van Beuzekom, M., Borgia, A., Bowcock, T., Buytaert, J., Casse, G., Collins, P., de Capua, S., de Vries, H., Donleavy, S., Eklund, L., Ferro-Luzzi, M., Frei, R., Hennessy, K., Huse, T., Hutchcroft, D., Jans, E., John, M., Ketel, T., Lefeuvre, G., Leflat, A., Marinho, F., McNulty, R., Mountain, R., Mous, I., Mylroie-Smith, J., Noor, A., Papadelis, A., Patel, G., Rakotomiaramanana, B., Rinnert, K., Rodrigues, E., Shears, T., Smith, N.A., Tobin, M., Traynor, S., Van Lysebetten, A., Verlaat, B., and Wang, J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Publisher:Elsevier
ISSN:0168-9002
ISSN (Online):1872-9576
Published Online:01 March 2010

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
398471First measurement of the CKM triangle gamma at LHCbChristopher ParkesScience & Technologies Facilities Council (STFC)PP/C001257/1Physics and Astronomy