1.
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Performance of the LHCb Vertex Locator
/ Aaij, R. (Nikhef, Amsterdam) ; Affolder, A. (Liverpool U.) ; Akiba, K. (UFRJ, Rio de Janeiro) ; Alexander, M. (Glasgow U.) ; Ali, S. (Nikhef, Amsterdam) ; Appleby, R.B. (Manchester U.) ; Artuso, M. (Syracuse U. (main)) ; Bates, A. (Glasgow U.) ; Bay, A. (Ecole Polytechnique, Lausanne) ; Behrendt, O. (CERN) et al.
/LHCb VELO Group
The Vertex Locator (VELO) is a silicon microstrip detector that surrounds the proton-proton interaction region in the LHCb experiment. The performance of the detector during the first years of its physics operation is reviewed. [...]
arXiv:1405.7808; CERN-LHCB-DP-2014-001.-
2014 - 61 p.
- Published in : JINST 9 (2014) P09007
Fulltext: arXiv:1405.7808 - PDF; 10.1088_1748-0221_9_09_P09007 - PDF; IOP Open Access article: PDF; External link: Preprint
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2.
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Mapping the material in the LHCb vertex locator using secondary hadronic interactions
/ Alexander, M. (Glasgow U.) ; Barter, W. (Manchester U.) ; Bay, A. (Ecole Polytechnique, Lausanne) ; Bel, L.J. (NIKHEF, Amsterdam) ; van Beuzekom, M. (NIKHEF, Amsterdam) ; Bogdanova, G. (SINP, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Buchanan, E. (Bristol U.) ; Buytaert, J. (CERN) et al.
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. [...]
arXiv:1803.07466; CERN-LHCb-DP-2018-002; CERN-LHCB-DP-2018-002.-
2018-06-13 - 11 p.
- Published in : JINST 13 (2018) P06008
Fulltext: PDF; Fulltext from Publisher: PDF; External link: Figures, tables and other information
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3.
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Evaporative CO2 cooling using microchannels etched in silicon for the future LHCb vertex detector
/ Nomerotski, A. (Oxford U. ; CERN) ; Buytart, J. (CERN) ; Collins, P. (CERN) ; Dumps, R. (CERN) ; Greening, E. (Oxford U.) ; John, M. (Oxford U.) ; Mapelli, A. (CERN) ; Leflat, A. (SINP, Moscow) ; Li, Y. (Tsinghua U., Beijing, Dept. Eng. Phys.) ; Romagnoli, G. (Genoa U.) et al.
The extreme radiation dose received by vertex detectors at the Large Hadron Collider dictates stringent requirements on their cooling systems. To be robust against radiation damage, sensors should be maintained below -20 degree C and at the same time, the considerable heat load generated in the readout chips and the sensors must be removed. [...]
arXiv:1211.1176; AIDA-PUB-2013-037.-
2013 - 12 p.
- Published in : JINST 8 (2013) P04004
Fulltext: AIDA-PUB-2013-037 - PDF; arXiv:1211.1176 - PDF; IOP Open Access article: PDF; External link: Preprint
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4.
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Radiation damage in the LHCb Vertex Locator
/ Affolder, A. (Liverpool U.) ; Akiba, K. (Rio de Janeiro Federal U.) ; Alexander, M. (Glasgow U.) ; Ali, S. (NIKHEF, Amsterdam) ; Artuso, M. (Syracuse U.) ; Benton, J. (Bristol U.) ; van Beuzekom, M. (NIKHEF, Amsterdam) ; Bjornstad, P.M. (Manchester U.) ; Bogdanova, G. (SINP, Moscow) ; Borghi, S. (Glasgow U. ; Manchester U.) et al.
/LHCb VELO group
The LHCb Vertex Locator (VELO) is a silicon strip detector designed to reconstruct charged particle trajectories and vertices produced at the LHCb interaction region. During the first two years of data collection, the 84 VELO sensors have been exposed to a range of fluences up to a maximum value of approximately $\rm{45 \times 10^{12}\,1\,MeV}$ neutron equivalent ($\rm{1\,MeV\,n_{eq}}$). [...]
CERN-LHCB-DP-2012-005; arXiv:1302.5259; CERN-LHCB-DP-2012-005; LHCB-DP-2012-005.-
2013-08-01 - 20 p.
- Published in : JINST 8 (2013) P08002
IOP Open Access article: PDF; Preprint: PDF; External link: Preprint
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5.
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The LHCb VELO Upgrade module construction
/ Akiba, K. (NIKHEF, Amsterdam) ; Alexander, M. (Glasgow U.) ; Bertella, C. (Manchester U.) ; Biolchini, A. (NIKHEF, Amsterdam) ; Bitadze, A. (Manchester U.) ; Bogdanova, G. (Higher Sch. of Economics, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T.J.V. (Liverpool U.) ; Bridges, K. (Liverpool U.) ; Brock, M. (Oxford U.) et al.
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. [...]
arXiv:2404.13615; LHCb-DP-2024-001; LHCb-PAPER-2024-001.-
2024-06-17 - 66 p.
- Published in : JINST 19 (2024) P06023
Fulltext: 2404.13615 - PDF; Publication - PDF;
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6.
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Radiation Damage Effects and Operation of the LHCb Vertex Locator
/ Akiba, K (Rio de Janeiro Federal U.) ; Alexander, M (Glasgow U.) ; Barter, W (Manchester U.) ; Bell, L (Nikhef, Amsterdam) ; Bogdanova, G (SINP, Moscow) ; Borghi, S (Manchester U.) ; Bowcock, T (Liverpool U.) ; Buchanan, E (Bristol U.) ; Buytaert, J (CERN) ; de Capua, S et al.
Vertex locator (VELO) is a silicon microstrip detector situated around the interaction point in the large Hadron Collider beauty (LHCb) spectrometer at the Large Hadron Collider. The LHCb experiment is dedicated to studying charge conjugation and parity symmetry violation in the heavy flavor sector and rare decays of B mesons. [...]
2018 - 6 p.
- Published in : IEEE Trans. Nucl. Sci. 65 (2018) 1127-1132
Fulltext: PDF; External link: Fulltext
In : IEEE Nuclear Science Symposium and Medical Imaging Conference, Strasbourg, France, 29 Oct - 6 Nov 2016, pp.1127-1132
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7.
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The upgrade I of LHCb VELO—towards an intelligent monitoring platform
/ Kopciewicz, P. (AGH-UST, Cracow) ; Szumlak, T. (AGH-UST, Cracow) ; Majewski, M. (AGH-UST, Cracow) ; Akiba, K. (Nikhef, Amsterdam) ; Augusto, O. (CERN) ; Back, J. (Warwick U.) ; Bobulska, D.S. (Glasgow U.) ; Bogdanova, G. (SINP, Moscow) ; Borghi, S. (Manchester U.) ; Bowcock, T. (Liverpool U.) et al.
The Large Hadron Collider beauty (LHCb) detector is designed to detect decays of b- and c- hadrons for the study of CP violation and rare decays. At the end of the LHC Run 2, many of the LHCb measurements remained statistically dominated. [...]
arXiv:2006.09559.-
2020-06-04 - 11 p.
- Published in : JINST
Fulltext: PDF;
In : 15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD 2019), Siena, Italy, 14 - 17 Oct 2019, pp.C06009
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8.
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Application of vertex and mass constraints in track-based alignment
/ Amoraal, J. (NIKHEF, Amsterdam) ; Blouw, J. (Heidelberg U.) ; Blusk, S. (Syracuse U.) ; Borghi, S. (Glasgow U. ; Manchester U.) ; Cattaneo, M. (CERN) ; Chiapolini, N. (Zurich U.) ; Conti, G. (LPHE, Lausanne) ; Deissenroth, M. (Heidelberg U.) ; Dupertuis, F. (LPHE, Lausanne) ; van der Eijk, R. (NIKHEF, Amsterdam) et al.
The software alignment of planar tracking detectors using samples of charged particle trajectories may lead to global detector distortions that affect vertex and momentum resolution. We present an alignment procedure that constrains such distortions by making use of samples of decay vertices reconstructed from two or more trajectories and putting constraints on their invariant mass. [...]
arXiv:1207.4756.-
2013 - 18 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 712 (2013) 48-55
Fulltext: PDF; External link: Preprint
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9.
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Characterisation of Medipix3 Silicon Detectors in a Charged-Particle Beam
/ Akiba, K. (Rio de Janeiro Federal U.) ; Alozy, J. (CERN) ; Aoude, R.Tourinho (Rio de Janeiro, Pont. U. Catol.) ; van Beuzekom, M. (NIKHEF, Amsterdam) ; Buytaert, J. (CERN) ; Collins, P. (CERN) ; Dosil Suárez, A. (Santiago de Compostela U.) ; Dumps, R. (CERN) ; Gallas, A. (Santiago de Compostela U.) ; Hombach, C. (Manchester U.) et al.
While designed primarily for X-ray imaging applications, the Medipix3 ASIC can also be used for charged-particle tracking. In this work, results from a beam test at the CERN SPS with irradiated and non-irradiated sensors are presented and shown to be in agreement with simulation, demonstrating the suitability of the Medipix3 ASIC as a tool for characterising pixel sensors..
arXiv:1509.02387; LHCB-PUB-2016-002; CERN-LHCb-PUB-2016-002; CERN-LHCb-PUB-2016-002.-
2016-01-21 - 13 p.
- Published in : JINST 11 (2016) P01011
Fulltext: LHCb-PUB-2016-002 - PDF; 10.1088_1748-0221_11_01_P01011 - PDF; arXiv:1509.02387 - PDF; IOP: PDF; External link: Preprint
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10.
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Phase I Upgrade of the Readout System of the Vertex Detector at the LHCb Experiment
/ Prieto, Antonio Fernández (Santiago de Compostela U., IGFAE) ; Vázquez Regueiro, Pablo (Santiago de Compostela U., IGFAE) ; Hennessy, Karol (Liverpool U.) ; Buytaert, Jan (CERN) ; van Beuzekom, Martin (Nikhef, Amsterdam) ; Lemos Cid, Edgar (Santiago de Compostela U., IGFAE) ; Eklund, Lars (Glasgow U.) ; de Bruyn, Kristof (CERN) ; Naik, Sneha (Glasgow U.) ; Schiller, Manuel (Glasgow U.) et al.
This article describes the high-speed system designed to meet the challenging requirements for the readout of the new pixel VErtex LOcator (VELO) of the upgraded LHCb experiment. All elements of the electronics readout chain will be renewed to cope with the requirement of ~40-MHz full-event readout rate. [...]
2020 - 8 p.
- Published in : IEEE Trans. Nucl. Sci. 67 (2020) 732-739
Fulltext from publisher: PDF;
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