CERN Accelerating science

LHCb Note
Report number	LHCb-PUB-2022-001 ; CERN-LHCb-PUB-2022-001
Title	Considerations for the VELO detector at the LHCb Upgrade II
Author(s)	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)) ; Bowcock, Themis (University of Liverpool (GB)) ; Buytaert, Jan (CERN) ; Byczynski, Wiktor (CERN) ; Cobbledick, John Leslie (University of Manchester (GB)) ; Coco, Victor (CERN) ; Collins, Paula (CERN) ; Davis, Adam (University of Manchester (GB)) ; De Aguiar Francisco, Oscar Augusto (University of Manchester (GB)) ; De Bruyn, Kristof Antoon M (University of Groningen (NL)) ; De Capua, Stefano (University of Manchester (GB)) ; De Roo, Krista (Nikhef National institute for subatomic physics (NL)) ; Dos Santos Rodrigues, Gabriel (Federal University of of Rio de Janeiro (BR)) ; Dufour, Laurent (CERN) ; Dumps, Raphael (CERN) ; Eklund, Lars (Uppsala University (SE)) ; Evans, Timothy David (University of Manchester (GB)) ; Fernandez Prieto, Antonio (Universidade de Santiago de Compostela (ES)) ; Ferro-Luzzi, Massimiliano (CERN) ; Franco Lima, Vinicius (University of Liverpool (GB)) ; Friday, David Anthony (University of Glasgow (GB)) ; Gallas Torreira, Abraham Antonio (Universidade de Santiago de Compostela (ES)) ; Garcia Plana, Beatriz (Universidade de Santiago de Compostela (ES)) ; Geertsema, Robbert Erik (Nikhef National institute for subatomic physics (NL)) ; Gersabeck, Marco (University of Manchester (GB)) ; Gershon, Timothy (University of Warwick (GB)) ; Gioventu, Alessandra (Universidade de Santiago de Compostela (ES)) ; Gkougkousis, Vagelis (CERN) ; Grillo, Lucia (University of Manchester (GB)) ; Haimberger, Jakob (Technische Universitaet Wien (AT)) ; Halewood-Leagas, Tabitha (University of Liverpool (GB)) ; Halvorsen, Marius Mahlum (University of Oslo (NO)) ; Hennessy, Karol (University of Liverpool (GB)) ; Hulsbergen, Wouter (Nikhef National institute for subatomic physics (NL)) ; Hutchcroft, David (University of Liverpool (GB)) ; John, Malcolm (University of Oxford (GB)) ; Jurik, Nathan Philip (CERN) ; Ketel, Tjeerd (Nikhef National institute for subatomic physics (NL)) ; Kopciewicz, Pawel (AGH University of Science and Technology (PL)) ; Kostiuk, Igor (Nikhef National institute for subatomic physics (NL)) ; Lai, Adriano (Universita e INFN, Cagliari (IT)) ; Latham, Thomas Edward (University of Warwick (GB)) ; Leflat, Alexander (M.V. Lomonosov Moscow State University (RU)) ; Lemos Cid, Edgar (Universidade de Santiago de Compostela (ES)) ; Majewski, Maciej Witold (AGH University of Science and Technology (PL)) ; Mcgrath, Tamaki Holly (University of Manchester (GB)) ; Merk, Marcel (Nikhef National institute for subatomic physics (NL)) ; Maneuski, Dima (University of Glasgow (GB)) ; Mikhasenko, Mikhail (University of Bonn (DE)) ; Milovanovic, Marko (CERN) ; Mitreska, Biljana (University of Manchester (GB)) ; Mohammed, Rizwaan Adeeb (University of Oxford (GB)) ; Morris, Adam (University of Bonn (DE)) ; Murray, Donal (University of Manchester (GB)) ; Naik, Sneha Amogh (University of Glasgow (GB)) ; Nasteva, Irina (Univ. Federal do Rio de Janeiro (BR)) ; Oblakowska-Mucha, Agnieszka (AGH University of Science and Technology (PL)) ; Pajero, Tommaso (University of Oxford (GB)) ; Parkes, Chris (University of Manchester (GB)) ; Pazos Alvarez, Antonio (Universidade de Santiago de Compostela (ES)) ; Perez Trigo, Eliseo (Universidade de Santiago de Compostela (ES)) ; Rachwal, Bartlomiej (AGH University of Science and Technology (PL)) ; Reiss, Florian (University of Manchester (GB)) ; Rinnert, Kurt (University of Liverpool (GB)) ; Rodrigues, Eduardo (University of Liverpool (GB)) ; Rodriguez Rodriguez, Efren (Universidade de Santiago de Compostela (ES)) ; Sanders, Freek (Nikhef National institute for subatomic physics (NL)) ; Scantlebury Smead, Luke George (University of Oxford (GB)) ; Schiller, Manuel Tobias (University of Glasgow (GB)) ; Schindler, Heinrich (CERN) ; Sanchez Gras, Cristina (Nikhef National institute for subatomic physics (NL)) ; Shears, Tara (University of Liverpool (GB)) ; Snoch, Aleksandra (Nikhef National institute for subatomic physics (NL)) ; Soler Jermyn, Paul (University of Glasgow (GB)) ; Svihra, Peter (University of Manchester (GB)) ; Szumlak, Tomasz (AGH University of Science and Technology (PL)) ; Vazquez, Pablo (Universidade de Santiago de Compostela (ES)) ; Veronesi, Michele (Nikhef National institute for subatomic physics (NL)) ; Volkov, Vladimir (M.V. Lomonosov Moscow State University (RU)) ; Williams, J Michael (Massachusetts Inst. of Technology (US)) ; Zunica, Gianluca (University of Manchester (GB))
Submitted by	[email protected] on 21 Jan 2022
Subject category	Particle Physics - Experiment
Note type	PHYS
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Abstract	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. This document presents the considerations for a future detector with timing capabilities for each track and minimal amount of material. Simulation studies indicate that a track temporal resolution of 20 ps is required to achieve the physics performance desired in Upgrade II, while keeping the same spatial resolutions as in VELO Upgrade I. Key promising technologies are listed and an R&D plan to achieve the complete set of requirements is laid out.

Corresponding record in: Inspire
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