R&D in preparation for an upgrade of CMS for the Super-LHC

Lead Research Organisation: Brunel University
Department Name: Sch of Engineering and Design

Abstract

The LHC machine will be upgraded to increase the luminosity by an order of magnitude to 10^35 cm-2.s-1. The date for the upgrade is not yet defined but is expected to be about 10 years after LHC starts operating. The machine parameters are not yet frozen but the clock speed is expected to be 20MHz instead of the current 40MHz. The motivation is to extend the physics reach of the LHC and to study with greater precision the discoveries expected to be made at LHC since, after several years at maximum luminosity, the statistical gains gradually decline with time, or integrated luminosity. The major part of the CMS upgrade will be to construct a new tracking detector to operate with similar performance in conditions of greatly increased secondary particle fluences, by a factor of about 20 in each bunch crossing. There are major technical challenges to copy with increased radiation damage and deliver power to the detector. If the overall performance of the present tracker is to be equalled or exceeded, lower power operation and a reduced material budget are important objectives to achieve. There is an additional new challenge to maintain the first level trigger rate at below 100kHz. The main innovation to make this possible will be to include data from the tracker in the first level hardware trigger decision, which is very novel and extremely challenging. Simulation studies form an important element of designing a new tracker and achieving the triggering objective. UK CMS plans to build on its existing expertise to contribute to the simulations, readout and triggering activities. It expects to maintain a prominent position in a future CMS where we hold well established important scientific management roles, in detector construction, computing, and physics analysis.
 
Description Explored a range of possibilities using simulation of how we might at a future high luminosity version of the LHC at CERN be able to use real-time data from the tracking detector to trigger the recording of an event.
Exploitation Route This is being taken forwards by subsequent funded projects that we contribute to.
Sectors Digital/Communication/Information Technologies (including Software),Electronics

 
Description Consolidated Grant
Amount £221,741 (GBP)
Funding ID ST/K001639/1 
Organisation Science and Technologies Facilities Council (STFC) 
Sector Public
Country United Kingdom
Start 10/2012 
End 09/2015
 
Description CMS 
Organisation European Organization for Nuclear Research (CERN)
Department Compact Muon Solenoid (CMS)
Country Switzerland 
Sector Public 
PI Contribution Construction, comissioning and operation of the CMS experiment. Data analysis in top-quark physics studies. Provision (via GridPP London Tier-2) of computing resources.
Collaborator Contribution Data acquistion, computing resources (Tier 0), co-authorship of publications, access to data, scientific leadership and support
Impact Over 200 refereed journal publications in experimental particle physics. Along with LHC data analysed by the ATLAS collaboration CMS determined the existence of the Higgs boson which was the subject of the 2013 Nobel Prize in Physics. Several STFC funded doctoral students have been trained in data analysis, computer programming and large-scale distributed Grid computing techniques.
 
Description CMS 
Organisation Imperial College London
Department Department of Physics
Country United Kingdom 
Sector Academic/University 
PI Contribution Construction, comissioning and operation of the CMS experiment. Data analysis in top-quark physics studies. Provision (via GridPP London Tier-2) of computing resources.
Collaborator Contribution Data acquistion, computing resources (Tier 0), co-authorship of publications, access to data, scientific leadership and support
Impact Over 200 refereed journal publications in experimental particle physics. Along with LHC data analysed by the ATLAS collaboration CMS determined the existence of the Higgs boson which was the subject of the 2013 Nobel Prize in Physics. Several STFC funded doctoral students have been trained in data analysis, computer programming and large-scale distributed Grid computing techniques.
 
Description CMS 
Organisation Rutherford Appleton Laboratory
Department Particle Physics Department
Country United Kingdom 
Sector Public 
PI Contribution Construction, comissioning and operation of the CMS experiment. Data analysis in top-quark physics studies. Provision (via GridPP London Tier-2) of computing resources.
Collaborator Contribution Data acquistion, computing resources (Tier 0), co-authorship of publications, access to data, scientific leadership and support
Impact Over 200 refereed journal publications in experimental particle physics. Along with LHC data analysed by the ATLAS collaboration CMS determined the existence of the Higgs boson which was the subject of the 2013 Nobel Prize in Physics. Several STFC funded doctoral students have been trained in data analysis, computer programming and large-scale distributed Grid computing techniques.
 
Description CMS 
Organisation University of Bristol
Department School of Physics
Country United Kingdom 
Sector Academic/University 
PI Contribution Construction, comissioning and operation of the CMS experiment. Data analysis in top-quark physics studies. Provision (via GridPP London Tier-2) of computing resources.
Collaborator Contribution Data acquistion, computing resources (Tier 0), co-authorship of publications, access to data, scientific leadership and support
Impact Over 200 refereed journal publications in experimental particle physics. Along with LHC data analysed by the ATLAS collaboration CMS determined the existence of the Higgs boson which was the subject of the 2013 Nobel Prize in Physics. Several STFC funded doctoral students have been trained in data analysis, computer programming and large-scale distributed Grid computing techniques.