A measurement of material in the ATLAS tracker using secondary hadronic interactions in 7TeV pp collisions
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Peer-reviewed
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Abstract
Knowledge of the material in the ATLAS inner tracking detector is crucial in
understanding the reconstruction of charged-particle tracks, the performance of
algorithms that identify jets containing b-hadrons and is also essential to
reduce background in searches for exotic particles that can decay within the
inner detector volume. Interactions of primary hadrons produced in pp
collisions with the material in the inner detector are used to map the location
and amount of this material. The hadronic interactions of primary particles may
result in secondary vertices, which in this analysis are reconstructed by an
inclusive vertex-finding algorithm. Data were collected using minimum-bias
triggers by the ATLAS detector operating at the LHC during 2010 at
centre-of-mass energy
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1748-0221
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Science and Technology Facilities Council (ST/N50399X/1)
Science and Technology Facilities Council (ST/L001144/1)
Science and Technology Facilities Council (ST/R504671/1)
Science and Technology Facilities Council (ST/K001361/1)
Science and Technology Facilities Council (ST/L005662/1)
Science and Technology Facilities Council (ST/I005846/1)
Science and Technology Facilities Council (ST/N000234/1)
Science and Technology Facilities Council (ST/K003666/1)
Science and Technology Facilities Council (ST/M001431/1)