Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE

The ALICE experiment at CERN is undergoing a major upgrade during the Long Shutdown 2 (LS2) of the LHC during 2019-2020. The key elements regarding the central barrel are the installation of a new Inner Tracking System (ITS) and the upgrade of the large Time Projection Chamber (TPC). The TPC is curr...

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Autor principal: Reidt, Felix
Lenguaje:eng
Publicado: 2020
Materias:
hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2020.121793
http://cds.cern.ch/record/2708577
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author Reidt, Felix
author_facet Reidt, Felix
author_sort Reidt, Felix
collection CERN
description The ALICE experiment at CERN is undergoing a major upgrade during the Long Shutdown 2 (LS2) of the LHC during 2019-2020. The key elements regarding the central barrel are the installation of a new Inner Tracking System (ITS) and the upgrade of the large Time Projection Chamber (TPC). The TPC is currently being upgraded with a new readout system, including new GEM-based Readout Chambers and new front-end electronics enabling us to operate it in continuous mode. The new ITS based on CMOS Monolithic Active Pixel Sensors will significantly improve the impact parameter resolution and the tracking efficiency, especially for particles with low transverse momenta, as well as the readout-rate capability. In the following, the upgrades and their assembly and commissioning status will be outlined.
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spelling cern-27085772021-02-06T03:36:15Zdoi:10.1016/j.nuclphysa.2020.121793http://cds.cern.ch/record/2708577engReidt, FelixUpgrading the Inner Tracking System and the Time Projection Chamber of ALICEhep-exParticle Physics - Experimentphysics.ins-detDetectors and Experimental TechniquesThe ALICE experiment at CERN is undergoing a major upgrade during the Long Shutdown 2 (LS2) of the LHC during 2019-2020. The key elements regarding the central barrel are the installation of a new Inner Tracking System (ITS) and the upgrade of the large Time Projection Chamber (TPC). The TPC is currently being upgraded with a new readout system, including new GEM-based Readout Chambers and new front-end electronics enabling us to operate it in continuous mode. The new ITS based on CMOS Monolithic Active Pixel Sensors will significantly improve the impact parameter resolution and the tracking efficiency, especially for particles with low transverse momenta, as well as the readout-rate capability. In the following, the upgrades and their assembly and commissioning status will be outlined.The ALICE experiment at CERN is undergoing a major upgrade during the Long Shutdown 2 (LS2) of the LHC during 2019-2020. The key elements regarding the central barrel are the installation of a new Inner Tracking System (ITS) and the upgrade of the large Time Projection Chamber (TPC). The TPC is currently being upgraded with a new readout system, including new GEM-based Readout Chambers and new front-end electronics enabling us to operate it in continuous mode. The new ITS based on CMOS Monolithic Active Pixel Sensors will significantly improve the impact parameter resolution and the tracking efficiency, especially for particles with low transverse momenta, as well as the readout-rate capability. In the following, the upgrades and their assembly and commissioning status will be outlined. Furthermore, an outlook will be given on plans for the upgrade of the ITS foreseen for the third long shutdown of the LHC in 2025-2026. For this upgrade, the three innermost layers could be replaced by cylindrical detector layers, made of curved wafer-scale-sized CMOS sensors, to lower even further the material budget and to improve the pointing resolution.arXiv:2002.00402oai:cds.cern.ch:27085772020-02-02
spellingShingle hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
Reidt, Felix
Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title_full Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title_fullStr Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title_full_unstemmed Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title_short Upgrading the Inner Tracking System and the Time Projection Chamber of ALICE
title_sort upgrading the inner tracking system and the time projection chamber of alice
topic hep-ex
Particle Physics - Experiment
physics.ins-det
Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nuclphysa.2020.121793
http://cds.cern.ch/record/2708577
work_keys_str_mv AT reidtfelix upgradingtheinnertrackingsystemandthetimeprojectionchamberofalice

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