title: Processing LHC data in the UK.
abstract: The Large Hadron Collider (LHC) is one of the greatest scientific endeavours to date. The construction of the collider itself and the experiments that collect data from it represent a huge investment, both financially and in terms of human effort, in our hope to understand the way the Universe works at a deeper level. Yet the volumes of data produced are so large that they cannot be analysed at any single computing centre. Instead, the experiments have all adopted distributed computing models based on the LHC Computing Grid. Without the correct functioning of this grid infrastructure the experiments would not be able to understand the data that they have collected. Within the UK, the Grid infrastructure needed by the experiments is provided by the GridPP project. We report on the operations, performance and contributions made to the experiments by the GridPP project during the years of 2010 and 2011--the first two significant years of the running of the LHC.
authors.affiliation: Department of Physics, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2BW, UK. d.colling@imperial.ac.uk
authors.forename: D
authors.initials: D
authors.lastname: Colling
authors.forename: D
authors.initials: D
authors.lastname: Britton
authors.forename: J
authors.initials: J
authors.lastname: Gordon
authors.forename: S
authors.initials: S
authors.lastname: Lloyd
authors.forename: A
authors.initials: A
authors.lastname: Doyle
authors.forename: P
authors.initials: P
authors.lastname: Gronbech
authors.forename: J
authors.initials: J
authors.lastname: Coles
authors.forename: A
authors.initials: A
authors.lastname: Sansum
authors.forename: G
authors.initials: G
authors.lastname: Patrick
authors.forename: R
authors.initials: R
authors.lastname: Jones
authors.forename: R
authors.initials: R
authors.lastname: Middleton
authors.forename: D
authors.initials: D
authors.lastname: Kelsey
authors.forename: A
authors.initials: A
authors.lastname: Cass
authors.forename: N
authors.initials: N
authors.lastname: Geddes
authors.forename: P
authors.initials: P
authors.lastname: Clark
authors.forename: L
authors.initials: L
authors.lastname: Barnby