Technical Design Report for the Upgrade of the ALICE Inner Tracking System

Scientific paper - Original scientific paper

• Author: B. Abelev
• Author: ...
• Author: Tome Antičić
• Author: ...
• Author: Sven Gotovac
• Author: ...
• Author: Eugen Mudnić
• Author: ...
• Author: Mirko Planinić
• Author: ...
• Author: Nikola Poljak
• Author: ...
• Author: Goran Simatović
• Author: ...
• Author: Tatjana Šuša
• Author: ...
• Author: Linda Vicković
• Author: ...
• Author: M. Zyzak
• Collaboration: ALICE Collaboration
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

ALICE (A Large Ion Collider Experiment) is studying the physics of strongly interacting matter, and in particular the properties of the Quark–Gluon Plasma (QGP), using proton–proton, proton–nucleus and nucleus–nucleus collisions at the CERN LHC (Large Hadron Collider). The ALICE Collaboration is preparing a major upgrade of the experimental apparatus, planned for installation in the second long LHC shutdown in the years 2018–2019. A key element of the ALICE upgrade is the construction of a new, ultra-light, high- resolution Inner Tracking System (ITS) based on monolithic CMOS pixel detectors. The primary focus of the ITS upgrade is on improving the performance for detection of heavy-flavour hadrons, and of thermal photons and low-mass di- electrons emitted by the QGP. With respect to the current detector, the new Inner Tracking System will significantly enhance the determination of the distance of closest approach to the primary vertex, the tracking efficiency at low transverse momenta, and the read-out rate capabilities. This will be obtained by seven concentric detector layers based on a 50 μm thick CMOS pixel sensor with a pixel pitch of about 30×30 μm2. This document, submitted to the LHCC (LHC experiments Committee) in September 2013, presents the design goals, a summary of the R&D activities, with focus on the technical implementation of the main detector components, and the projected detector and physics performance.

• Keywords (english): LHC; ALICE; Inner Tracking System
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Journal of Physics G: Nuclear and Particle Physics
• Numbering: vol. 41, no. 8, 087002
• p-ISSN: 0954-3899
• e-ISSN: 1361-6471
• DOI: https://doi.org/10.1088/0954-3899/41/8/087002
• URN:NBN: urn:nbn:hr:217:814735
• Publication: 2014
• Project: Number: 119-0982887-1006; Title (croatian): Istraživanje hadronskih sustava upotrebom relativističkih projektila; Leader: Mirko Planinić; Jurisdiction: Croatia; Funding stream: ZP
• Project: Number: 098-0982887-2878; Title (croatian): Eksperimentalna fizika na LHC energijama; Leader: Krešo Kadija; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: https://iopscience.iop.org/article/10.1088/0954-3899/41/8/087002
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2014 CERN on behalf of The ALICE Collaboration. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published 2 July 2014.
• Created on: 2019-11-27 20:13:18