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Search for bottom squark pair production in proton–proton collisions at $\sqrt{s}=13$  TeV with the ATLAS detector

2016-10-06Journal article Open access
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dc.contributor.authorATLAS collaboration (2859 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.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.accessioned2019-02-04T10:33:37Z
dc.date.available2019-02-04T10:33:37Z
dc.date.issued2016-10-06
dc.date.updated2019-02-04T10:33:37Z
dc.description.abstractThe result of a search for pair production of the supersymmetric partner of the Standard Model bottom quark ( $\tilde{b}^{1} $ ) is reported. The search uses 3.2 fb$^{-1}$  of pp collisions at $\sqrt{s}=13$  TeV collected by the ATLAS experiment at the Large Hadron Collider in 2015. Bottom squarks are searched for in events containing large missing transverse momentum and exactly two jets identified as originating from b-quarks. No excess above the expected Standard Model background yield is observed. Exclusion limits at 95 % confidence level on the mass of the bottom squark are derived in phenomenological supersymmetric R-parity-conserving models in which the $\tilde{b}^{1} $ is the lightest squark and is assumed to decay exclusively via $\tilde{b}^{1} \rightarrow b \tilde{\chi }^{01}$ , where $\tilde{\chi }^{01}$  is the lightest neutralino. The limits significantly extend previous results, bottom squark masses up to 800 (840) GeV are excluded for the $\tilde{\chi }^{01}$ mass below 360 (100) GeV whilst differences in mass above 100 GeV between the $\tilde{b}^{1}$ and the $\tilde{\chi }^{01}$  are excluded up to a $\tilde{b}^{1} $ mass of 500 GeV.
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C76 (2016) 547; DOI 10.1140/epjc/s10052-016-4382-4
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-016-4382-4
dc.identifier.urihttp://hdl.handle.net/10400.26/27131
dc.language.isoeng
dc.titleSearch for bottom squark pair production in proton–proton collisions at $\sqrt{s}=13$  TeV with the ATLAS detector
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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