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Considerations for the VELO detector at the LHCb Upgrade II
/ Akiba, Kazu (Nikhef National institute for subatomic physics (NL)) ; Alexander, Michael Thomas (University of Glasgow (GB)) ; Back, John James (University of Warwick (GB)) ; Bates, Richard (University of Glasgow (GB)) ; Bertella, Claudia (University of Manchester (GB)) ; Van Beuzekom, Martin (Nikhef National institute for subatomic physics (NL)) ; Seman Bobulska, Dana (University of Glasgow (GB)) ; Boente Garcia, Oscar (Universidade de Santiago de Compostela (ES)) ; Bogdanova, Galina (M.V. Lomonosov Moscow State University (RU)) ; Borghi, Silvia (University of Manchester (GB)) et al.
The LHCb experiment is planning to operate with a 7.5-fold increase in instantaneous luminosity for LHC Runs 5 and 6. The performance of the Vertex Locator detector is crucial in the event reconstruction at the increased pile-up, providing real-time information to be used in the trigger. [...]
LHCb-PUB-2022-001; CERN-LHCb-PUB-2022-001.-
Geneva : CERN, 2022 - 98.
Fulltext: PDF;
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Readout Firmware of the Vertex Locator for LHCb Run 3 and Beyond
/ Hennessy, Karol (U. Liverpool (main)) ; Prieto, Antonio Fernandez (Santiago de Compostela U., IGFAE) ; Regueiro, Pablo Vazquez (Santiago de Compostela U., IGFAE) ; Buytaert, Jan (CERN) ; Van Beuzekom, Martin (Nikhef, Amsterdam) ; Cid, Edgar Lemos (Santiago de Compostela U., IGFAE) ; Eklund, Lars (Glasgow U.) ; de Bruyn, Kristof (Nikhef, Amsterdam) ; Naik, Sneha (Glasgow U.) ; Schiller, Manuel (Glasgow U.) et al.
The new LHCb Vertex Locator (VELO) for LHCb, comprising a new pixel detector and readout electronics, will be installed in 2021 for data taking in Run 3 at the LHC. The electronics centers around the “VeloPix” ASIC at the front-end operating in a trigger-less readout at 40MHz. [...]
2021 - 8 p.
- Published in : IEEE Trans. Nucl. Sci. 68 (2021) 2472-2479
Fulltext: PDF;
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The very forward CASTOR calorimeter of the CMS experiment
/ CMS Collaboration
The physics motivation, detector design, triggers, calibration, alignment, simulation, and overall performance of the very forward CASTOR calorimeter of the CMS experiment are reviewed. The CASTOR Cherenkov sampling calorimeter is located very close to the LHC beam line, at a radial distance of about 1 cm from the beam pipe, and at 14.4 m from the CMS interaction point, covering the pseudorapidity range of $-6.6 < \eta < -5.2$. [...]
arXiv:2011.01185; CMS-PRF-18-002; CERN-EP-2020-180; CMS-PRF-18-002; CERN-EP-2020-180; CMS-PRF-18-002-003.-
Geneva : CERN, 2021-02-08 - 65 p.
- Published in : JINST 16 (2021) P02010
Fulltext: 2011.01185 - PDF; fermilab-pub-20-696-cms-scd - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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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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Velo Upgrade Module Nomenclature
/ Coco, Victor (European Organization for Nuclear Research (CERN), Geneva, Switzerland) ; Akiba, Kazu (Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands) ; Back, John (Department of Physics, University of Warwick, Coventry, United Kingdom) ; Bertella, Claudia (European Organization for Nuclear Research (CERN), Geneva, Switzerland) ; Bitadze, Alexander (School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom) ; Boente García, Oscar (Instituto Galego de Física de Altás (IGFAE), Universidade de Santiago de Compostela,Santiago de Compostela, Spain) ; Bogdanova, Galina (Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia) ; Borghi, Silvia (School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom) ; Bowcock, Themis (Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom) ; Bridges, Kieran (Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom) et al.
The nomenclature and geometry of the various constituents of velo upgrade hybrid sensors are defined, as well as their position within the modules. The modules nomenclature and their position along the z-axis are defined..
LHCb-PUB-2019-008; CERN-LHCb-PUB-2019-008.-
Geneva : CERN, 2019 - 14.
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Study of the underlying event at forward rapidity in pp collisions at $\sqrt{s}$ = 0.9, 2.76, and 7 TeV
/ CMS Collaboration
The underlying event activity in proton-proton collisions at forward pseudorapidity (-6.6 $\lt \eta \lt$ -5.2) is studied with the CMS detector at the LHC, using a novel observable: the ratio of the forward energy density, dE/d$\eta$, for events with a charged-particle jet produced at central pseudorapidity (abs(eta[jet]) $\lt$ 2) to the forward energy density for inclusive events. This forward energy density ratio is measured as a function of the central jet transverse momentum, pt, at three different pp centre-of-mass energies ($\sqrt{s}$ = 0.9, 2.76, and 7 TeV). [...]
arXiv:1302.2394; CMS-FWD-11-003; CERN-PH-EP-2013-012; CMS-FWD-11-003; CERN-PH-EP-2013-012.-
Geneva : CERN, 2013-04-11 - 31 p.
- Published in : JHEP 04 (2013) 072
Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
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