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Muon reconstruction performance of the ATLAS detector in proton–proton collision data at $\sqrt{s}$ =13 TeV

2016-05-23Journal article Open access
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dc.contributor.authorATLAS collaboration (2845 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmor Dos Santos, Susana Patricia
dc.contributor.authorAnjos, Nuno
dc.contributor.authorAraque, Juan Pedro
dc.contributor.authorCantrill, Robert
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDa Cunha Sargedas De Sousa, Mario Jose
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGalhardo, Bruno
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorLopes, Lourenco
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorOleiro Seabra, Luis Filipe
dc.contributor.authorOnofre, António
dc.contributor.authorPalma, Alberto
dc.contributor.authorPedro, Rute
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorTavares Delgado, Ademar
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-04T09:34:46Z
dc.date.available2019-02-04T09:34:46Z
dc.date.issued2016-05-23
dc.date.updated2019-02-04T09:34:46Z
dc.description.abstractThis article documents the performance of the ATLAS muon identification and reconstruction using the LHC dataset recorded at $\sqrt{s} = 13$  TeV in 2015. Using a large sample of $J/\psi \rightarrow \mu \mu $ and $Z\rightarrow \mu \mu $ decays from 3.2 fb$^{-1}$ of pp collision data, measurements of the reconstruction efficiency, as well as of the momentum scale and resolution, are presented and compared to Monte Carlo simulations. The reconstruction efficiency is measured to be close to $99~\%$ over most of the covered phase space ( $|\eta |<2.5$ and $5 < p_{\mathrm {T}} < 100$  GeV). The isolation efficiency varies between 93 and $100~\%$ depending on the selection applied and on the momentum of the muon. Both efficiencies are well reproduced in simulation. In the central region of the detector, the momentum resolution is measured to be $1.7~\%$ ( $2.3~\%$ ) for muons from $J/\psi \rightarrow \mu \mu $ ( $Z\rightarrow \mu \mu $ ) decays, and the momentum scale is known with an uncertainty of $0.05~\%$ . In the region $|\eta |>2.2$ , the $p_{\mathrm {T}} $ resolution for muons from $Z\rightarrow \mu \mu $ decays is $2.9~\%$ while the precision of the momentum scale for low- $p_{\mathrm {T}} $ muons from $J/\psi \rightarrow \mu \mu $ decays is about $0.2~\%$ .
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C76 (2016) 292; DOI 10.1140/epjc/s10052-016-4120-y
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-016-4120-y
dc.identifier.urihttp://hdl.handle.net/10400.26/27052
dc.language.isoeng
dc.titleMuon reconstruction performance of the ATLAS detector in proton–proton collision data at $\sqrt{s}$ =13 TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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