A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to b (b) over bar final states, and pp collision data at root s = 7 TeV collected with the ATLAS detector at the LHC during 2011.

Standalone vertex finding in the ATLAS muon spectrometer / Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S.a., Abdinov, O., Aben, R., Abi, B., Abolins, M., Abouzeid, O.s., Abramowicz, H., Abreu, H., Abulaitia, Y., Acharya, B.s., Adamczyka, L., Adams, D.l., Addy, T.n., Adelman, J., Adomeit, S., Adye, T., et al.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 9:(2014). [10.1088/1748-0221/9/02/P02001]

Standalone vertex finding in the ATLAS muon spectrometer

Gonella L;
2014-01-01

Abstract

A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to b (b) over bar final states, and pp collision data at root s = 7 TeV collected with the ATLAS detector at the LHC during 2011.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/3090437
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