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Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at $ \sqrt{s}=8 $ TeV

2015-01-14Journal article Open access
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dc.contributor.authorATLAS collaboration (2891 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.authorOnofre, António
dc.contributor.authorPalma, Alberto
dc.contributor.authorPedro, Rute
dc.contributor.authorPina, João Antonio
dc.contributor.authorPinto, Belmiro
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.accessioned2019-02-04T05:31:06Z
dc.date.available2019-02-04T05:31:06Z
dc.date.issued2015-01-14
dc.date.updated2019-02-04T05:31:06Z
dc.description.abstractSearches for heavy long-lived charged particles are performed using a data sample of 19.1 fb$^{−1}$ from proton-proton collisions at a centre-of-mass energy of $ \sqrt{s}=8 $ TeV collected by the ATLAS detector at the Large Hadron Collider. No excess is observed above the estimated background and limits are placed on the mass of long-lived particles in various supersymmetric models. Long-lived tau sleptons in models with gauge-mediated symmetry breaking are excluded up to masses between 440 and 385 GeV for tan β between 10 and 50, with a 290 GeV limit in the case where only direct tau slepton production is considered. In the context of simplified LeptoSUSY models, where sleptons are stable and have a mass of 300 GeV, squark and gluino masses are excluded up to a mass of 1500 and 1360 GeV, respectively. Directly produced charginos, in simplified models where they are nearly degenerate to the lightest neutralino, are excluded up to a mass of 620 GeV. R-hadrons, composites containing a gluino, bottom squark or top squark, are excluded up to a mass of 1270, 845 and 900 GeV, respectively, using the full detector, and up to a mass of 1260, 835 and 870 GeV using an approach disregarding information from the muon spectrometer.
dc.description.versionPeer Reviewed
dc.identifierJHEP 1501 (2015) 068; DOI 10.1007/JHEP01(2015)068
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP01(2015)068
dc.identifier.urihttp://hdl.handle.net/10400.26/26735
dc.language.isoeng
dc.titleSearches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at $ \sqrt{s}=8 $ TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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