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dc.contributor.authorGasik, P.
dc.contributor.authorAcharya, Shreyasi
dc.contributor.authorAcosta, Fernando T.
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAdolfsson, Jonatan
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAglieri Rinella, Gianluca
dc.contributor.authorAgnello, Michelangelo
dc.contributor.authorAgrawal, Neelima
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAlme, Johan
dc.contributor.authorAltenkaemper, Lucas
dc.contributor.authorDjuvsland, Øystein
dc.contributor.authorErsdal, Magnus Rentsch
dc.contributor.authorFionda, Fiorella Maria Celeste
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq Ur
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorTambave, Ganesh Jagannath
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorWagner, Boris
dc.contributor.authorZhou, Zhuo
dc.contributor.authorArsene, Ionut Cristian
dc.contributor.authorBätzing, Paul Christoph
dc.contributor.authorDordic, Olja
dc.contributor.authorLardeux, Antoine Xavier
dc.contributor.authorLindal, Svein
dc.contributor.authorMahmood, Sohail Musa
dc.contributor.authorMalik, Qasim Waheed
dc.contributor.authorRichter, Matthias
dc.contributor.authorRøed, Ketil
dc.contributor.authorSkaali, Toralf Bernhard
dc.contributor.authorTveter, Trine Spedstad
dc.contributor.authorWikne, Jon Christopher
dc.contributor.authorZhao, Chengxin
dc.contributor.authorHetland, Kristin Fanebust
dc.contributor.authorKileng, Bjarte
dc.contributor.authorNesbø, Simon Voigt
dc.contributor.authorStoretvedt, Maksim Melnik
dc.contributor.authorHelstrup, Håvard
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen André
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAiola, Salvatore
dc.contributor.authorAkindinov, Alexander
dc.contributor.authorAl-Turany, Mohammad
dc.contributor.authorAlam, Sk Noor
dc.contributor.authorAlbuquerque, D. S. D.
dc.contributor.authorAleksandrov, Dmitry
dc.contributor.authorAlessandro, Bruno
dc.contributor.authorALICE, Collaboration
dc.PublishedGasik, Acharya, Acosta, Adamová, Adolfsson, Aggarwal, Aglieri Rinella, et al., ALICE. Upgrade of the ALICE central barrel tracking detectors: ITS and TPC. Nuclear Physics A. 2019;982:943-946eng
dc.description.abstractThe ALICE Collaboration will undertake a major upgrade of the detector apparatus during the second LHC Long Shutdown LS2 (2019–2020) in view of the Runs 3 and 4 (2021–2029). The objective of the upgrade is two-fold: i) an improvement of the tracking precision and efficiency, in particular in the low-momentum range; ii) an improvement of the readout capabilities of the experiment, in order to fully exploit the luminosity for heavy ions envisaged after LS2. The first goal will be achieved by replacing the Inner Tracking System with a new tracker, composed of seven layers of silicon pixel detectors. The new tracker will be made up of about 25000 Monolithic Active Pixel Sensors with fast readout, resulting in a material thickness reduced to 0.3% (inner layers) – 1% (outer layers) of the radiation length and a granularity of 28×28μm2. The second goal will be achieved, among other measures, by replacing the readout chambers of the 90m3 Time Projection Chamber with Micro Pattern Gaseous Detectors. In particular, the new readout chambers will consist of stacks of 4 Gas Electron Multiplier foils combining different hole pitches. The upgraded detector will operate continuously without the use of a triggered gating grid. It will thus be able to record all Pb–Pb collisions at the LHC interaction rate of 50kHz.en_US
dc.rightsAttribution-NonCommercial-NoDerivs CC BY-NC-NDeng
dc.titleUpgrade of the ALICE central barrel tracking detectors: ITS and TPCen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2018 The Author(s)en_US
dc.source.journalNuclear Physics A
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431

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