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FORCE Request: Operations and Upgrades of the Electromagnetic Calorimeter of the CMS experiment at the LHC

English title FORCE Request: Operations and Upgrades of the Electromagnetic Calorimeter of the CMS experiment at the LHC
Applicant Dissertori Günther
Number 141280
Funding scheme FORCE / CERN
Research institution Institut für Teilchen- und Astrophysik ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Particle Physics
Start/End 01.06.2012 - 31.05.2013
Approved amount 155'000.00
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Keywords (6)

Electromagnetic Calorimeter; Detector Control System; LHC Large Hadron Collider; Scintillating Crystals; CMS Detector; CMS detector upgrade

Lay Summary (English)

Lead
Lay summary

CERN's Large Hadron Collider (LHC) has been running extremely successfully in the years 2010 and 2011, at a centre-of-mass energy of 7 TeV. Since March 2012 proton-proton collisions at 8 TeV are being recorded, at very high beam intensities and luminosities. Altogether, this has delivered important datasets to the LHC experiments. The data allow testing the so successful Standard Model (SM) of Particle Physics at unprecedented scales and soon might indicate possible deviations from it. ETH Zurich is one of the leading Institutions in the CMS experiment and has been involved in the design and physics evaluation since the early phase of CMS. In particular, the group carries major responsibilities for the Electromagnetic Calorimeter (ECAL) of CMS, both in terms of commissioning and operation. Furthermore, it is involved in a leading manner in the CMS data analyses. With this FORCE grant resources are provided in order to support and ensure the successful execution of the hardware and detector related activities, commitments and Research&Development plans. Most notably, the ETH group is responsible for the operation and maintenance of the detector control system of the electromagnetic calorimeter and carries out detailed studies of scintillating materials, in view of possible long-term upgrades of the ECAL.

Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Name Institute

Associated projects

Number Title Start Funding scheme
135134 FORCE Request: Operations and Upgrades of the Barrel Pixel Detector and the Electromagnetic Calorimeter of the CMS experiment at the LHC 01.06.2011 FORCE / CERN
147466 FLARE Request: Operation, Computing and Upgrades of the CMS Experiment 01.04.2013 FLARE
138111 Search for New Physics with the CMS experiment at LHC 01.10.2011 Project funding
147468 FLARE: Maintenance & Operation for the LHC Experiments 2013 01.04.2013 FLARE
149870 Physics at 13-14 TeV with the CMS experiment at the LHC 01.10.2013 Project funding

Abstract

Since March 2010 CERN’s Large Hadron Collider (LHC) has been operating at a centre-of-mass energy of 7 TeV in an excellent manner, showing continued increase in instantaneous and integrated luminosity. This has delivered a very interesting data sample to the LHC experiments, which have already published a very large number of analyses based on this sample. The data are used to test the so successful Standard Model (SM) of Particle Physics at unprecedented energy scales and soon might indicate possible deviations from it. In particular, the hunt for the long sought-for Higgs boson has entered an interesting phase.The Institute for Particle Physics at ETH Zurich (group of Prof. G. Dissertori and Prof. F. Pauss) carries a leading role in the CMS experiment and has been involved in the design and physics evaluation since the early phase of CMS. In particular, the group carries major responsibilities for the Electromagnetic Calorimeter (ECAL) of CMS, both in terms of commissioning and operation. Furthermore, it is involved in a leading manner in the CMS data analyses. Whereas the resources needed to ensure a strong participation in the physics exploitation have been and will be requested via dedicated SNF proposals, mostly for Postdocs and PhD students, in this FORCE request we ask for additional resources in order to support and ensure the successful execution of our hardware and detector related activities, commitments and R&D plans.For the CMS ECAL, we are involved in the data acquisition activities. Furthermore, we carry the responsibility for the software framework and operation of the full ECAL detector control system (DCS). During recent years we have successfully built a setup, which is now in routine deployment at the CMS experimental site. The experience gained during these last two years of operation has shown the need for further improvements and maintenance activities on the software environment. For this we had hired a software engineer, O. Holme, supported by previous FORCE requests, who has extensive experience in the development and deployment of controls software for CERN LHC experiments. During the last year he has already implemented substantial improvements of the overall DCS system, which he will pursue and further optimize during the upcoming year. Most notably, the long LHC shutdown foreseen for 2013 will be an important period of maintenance, consolidation and upgrade activities for the DCS system. Therefore we request a continuation of the financial support for the hiring of this engineer. This will ensure that our group successfully continues to contribute to a highly efficient and smooth CMS data taking. We also continue our R&D studies in the field of radiation hard scintillating materials, in particular in view of later LHC and detector upgrades. During the last year we have embarked into the study of a list of interesting candidates of alternative scintillating crystals and completely different materials, such as ceramics, as possible replacements for the current Lead Tungstate crystals in the ECAL end caps. We are also close to providing definite answers to the difficult question of the origin of the radiation damage to Lead Tungstate because of hadrons. In order to pursue and further refine our R&D work, we request financial support for purchasing further material sample probes and laboratory equipment. Our R&D efforts should be considered as a necessary step towards the decision process for possible upgrades of ECAL in time for a later LHC luminosity upgrade.
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