Project
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FLARE - ATLAS Detector Operation and Upgrades at the CERN Large Hadron Collider (LHC)
English title |
FLARE - ATLAS Detector Operation and Upgrades at the CERN Large Hadron Collider (LHC) |
Applicant |
Iacobucci Giuseppe
|
Number |
147465 |
Funding scheme |
FLARE
|
Research institution |
Département de physique nucléaire et corpusculaire Université de Genève
|
Institution of higher education |
University of Geneva - GE |
Main discipline |
Particle Physics |
Start/End |
01.04.2013 - 31.03.2015 |
Approved amount |
1'261'000.00 |
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Keywords (5)
Elementary particle physics; ATLAS; silicon tracker; HL-LHC upgrade; LHC
Lay Summary (French)
Lead
|
Cette subvention FLARE concerne l'expérience ATLAS au Large Hadron Collider (LHC) du CERN pour pour la période avril 2013 - mars 2015.
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Lay summary
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En 2012, le Large Hadron Collider (LHC) a fonctionné très bien et mieux que prévu. En dépit des sévères conditions expérimentales (par exemple, chaque seconde les deux faisceaux se sont croisés 20 millions de fois au centre du détecteur et à chaque croisement une moyenne de 20 événements a été produite), le détecteur ATLAS a eu une prise des données très efficace. Les groupes de recherche des Universités de Berne et de Genève sont membres fondateurs de la Collaboration ATLAS et ils ont eu un rôle majeur dans la construction du détecteur. Les groupes suisses sont également impliqués très fortement dans le fonctionnement du détecteur et l'analyse des données. Nous effectuons plusieurs études, avec un accent particulier sur les recherches de nouvelle physique. Nous faisons également partie du groupe de recherche qui a fait la découverte du boson de Higgs annoncée en 2012. En 2013 et 2014, le LHC ne sera pas en fonction afin de permettre l'amélioration des interconnexions entre les aimants supraconducteurs et d’effectuer d’autres réparations nécessaires pour faire fonctionner le LHC à une énergie du centre de masse de 14 TeV. Durant ces deux années, le détecteur ATLAS sera soumis à une série de consolidations et petites réparations. L'activité la plus importante sera la construction de l'Insertable Barrel Layer (IBL), une quatrième couche du détecteur à pixel de silicium avec une précision supérieure. Berne et Genève ont un rôle central dans cette activité, comme en témoigne le fait que l'IBL est en cours d'assemblage dans les laboratoires de l'Université de Genève. Cette subvention nous permet de poursuivre l'analyse des données, la construction de l'IBL et les R & D pour les futures upgrades/améliorations du détecteur ATLAS prévues en 2018 et 2022.
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Responsible applicant and co-applicants
Employees
Associated projects
Number |
Title |
Start |
Funding scheme |
149246
|
Teilchenphysik-Experimente und Entwicklung von Teilchen-Detektoren |
01.10.2013 |
Project funding |
137732
|
Teilchenphysik-Experimente und Entwicklung von Teilchen-Detektoren |
01.10.2011 |
Project funding |
160433
|
FLARE: Maintenance & Operation for the LHC Experiments 2015 |
01.04.2015 |
FLARE |
160474
|
FLARE - ATLAS Detector Operation and Upgrades at the CERN Large Hadron Collider (LHC) |
01.04.2015 |
FLARE |
160474
|
FLARE - ATLAS Detector Operation and Upgrades at the CERN Large Hadron Collider (LHC) |
01.04.2015 |
FLARE |
135103
|
FORCE - Physics at the Large Hadron Collider (LHC) at CERN |
01.04.2011 |
FORCE / CERN |
141304
|
FORCE: Proton-Proton Collider Physics with the ATLAS Experiment at CERN |
01.04.2012 |
FORCE / CERN |
141287
|
FORCE - ATLAS Detector Upgrades at the CERN Large Hadron Collider (LHC) |
01.06.2012 |
FORCE / CERN |
132401
|
High-Energy Hadron Interactions : CDF at the Tevatron and ATLAS at the CERN LHC |
01.10.2010 |
Project funding |
154217
|
FLARE: Maintenance & Operation for the LHC Experiments 2014 |
01.04.2014 |
FLARE |
163402
|
Teilchenphysik-Experimente und Entwicklung von Teilchen-Detektoren |
01.10.2015 |
Project funding |
Abstract
This FLARE funding request follows the FORCE grants 206620_141287 and 206620_141304 and concerns the ATLAS experiment at the LHC at CERN for the period April 2013 - March 2015.The LHC has performed extremely well in 2012, delivering to date 20 fb^-1 well above expectations. With an average of 20 pileup events/bunch crossing and a maximum of 49 at the beginning of the run, the ATLAS detector had a very successful data taking, with an overall efficiency of about 94% and a fraction of non-operating channels between a few per mill (in most cases) and 5%.214 ATLAS papers have been published or submitted for publication, proving the success of the collaboration in building and operating the detector, in exploiting the computer infrastructures, and in data analysis. The discovery of a "Higgs-like boson" at a mass of 126 GeV has been announced in July 2012. This result opens a new chapter in the study of the mechanism of electroweak-symmetry breaking. We are now analyzing more decay channels and all the available 2011-2012 statistics to determine the spin and CP properties of this new particle and verify if this is indeed the Standard Model Higgs boson or some more exotic particle.The Bern and Geneva groups are founding members of the ATLAS Collaboration. They had a major role in the construction of the detector, in particular for the silicon-strip detector, the liquid-argon and hadron calorimeter readout, the trigger and data acquisition. The Swiss groups are also strongly involved in the operation of the detector and the analysis of the data. The studies we perform range through all LHC-physics fields: from Standard Model and top-quark related measurements, to the searches for the Higgs boson, and to searches for SuperSymmetry and physics Beyond the Standard Model.The LHC schedule foresees a long shutdown in 2013 and 2014 to allow the magnet interconnections and other repairs that are necessary to operate the LHC at the design centre-of-mass energy of 14 TeV. The ATLAS detector will be subject to a series of consolidations and repairs. The most important activity is represented by the Insertable Barrel Layer (IBL), a fourth pixel-detector layer to be installed between the innermost layer of the present detector and a new, smaller radius, beryllium beampipe. Bern and Geneva have a central role in this activity, and are responsible for the assembly of the IBL staves and of the staves around the new beampipe.Data taking will be resurrected in 2015, for three years of collisions at design energy, which should provide ATLAS with an integrated luminosity of ~100 fb^-1. The LHC schedule presently foresees 2 major accelerator upgrades beyond 2015:- a 1-year shutdown in 2018 (Phase-I upgrade) to allow operation at luminosities of 2-3 10^34 cm^-2s^-1, with pileup of 55-80 events/bunch-crossing and a total integrated luminosity of 300-400 fb^-1 to be collected in three years. A Letter of Intent has been approved by the LHCC and RRB, which contains five detector upgrades. The Swiss groups have major responsibilities in the Fast Tracker (FTK) and the Forward Proton detector (AFP);- a 2-year shutdown from 2022 (Phase-II upgrade) to allow 5-7x 10^34 cm^-2s^-1, with pileup of 140-200 events and a luminosity of 3000 fb^-1 to be collected in the following ten years. This will entail major detector upgrades, including the full replacement of the Inner Tracker. The Swiss groups have two R&Ds towards the new Inner Tracker: the SuperModule, that will be completed in 2013, and the innovative HV-CMOS technology for strip and pixel silicon detectors.
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