Abstract
With the LHC successfully collecting data at 7 TeV, plans are actively advancing for a series of upgrades leading eventually to about five times the LHC design-luminosity some 10-years from now in the High-Luminosity LHC (HL-LHC) project. Coping with the high instantaneous and integrated luminosity will require many changes to the ATLAS detector. The designs are developing rapidly for an all-new inner-tracker, significant changes in the calorimeter and muon systems, as well as improved triggers. This article summarizes the environment expected at the HL-LHC and the status of various improvements to the ATLAS detector.
Highlights
ATLAS [1], at the CERN Large Hadron Collider (LHC) [2], is a general-purpose experiment designed to explore the proton-proton coll√isions at the LHC with center-ofmass energies of up to s = 14 TeV at a maximum luminosity of Lpeak = 1034 cm−2s−1
This article summarizes the environment expected at the HL-LHC and the status of various improvements to the ATLAS detector
ATLAS is constructed to fully exploit the physics potential of the LHC, which includes the discovery of the Higgs particle, as well as searches for effects beyond the Standard Model (SM)
Summary
ATLAS [1], at the CERN Large Hadron Collider (LHC) [2], is a general-purpose experiment designed to explore the proton-proton (pp) coll√isions at the LHC with center-ofmass energies of up to s = 14 TeV at a maximum luminosity of Lpeak = 1034 cm−2s−1. As a result of the excellent performance and operation of the experiment, by the end of October 2011, ATLAS has recorded an integrated luminosity of 5 fb−1 with stable beams, corresponding to an overall data-taking efficiency of 94%. The foreseen higher luminosity at the HL-LHC is a great challenge for ATLAS. Meeting it will require significant detector optimizations, changes and improvements, which are subject of these proceedings
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