Search for squarks and gluinos in final states with jets and missing transverse momentum at √s = 13 TeV with the ATLAS detector /M. Aaboud, G. Aad, B. Abbott [et.al.]

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Другой Автор
Aaboud, M.
Abbott, B.
Chelkov, G. A.
Aad, G.
Источник
The European physical journal C 2016 Vol. 76, № 7. P. 392 (1-29)
Аннотация
A search for squarks and gluinos in final states containing hadronic jets, missing transverse momentum but no electrons or muons is presented. The data were recorded in 2015 by the ATLAS experiment in (sqrt{s}=13~{mathrm{TeV}}) proton–proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 3.2 (mathrm{fb}^{-1}) of analyzed data. Results are interpreted within simplified models that assume R-parity is conserved and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95 % confidence level on the mass of the gluino is set at 1.51 ({mathrm{TeV}}) for a simplified model incorporating only a gluino octet and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.03 ({mathrm{TeV}}) are excluded for a massless lightest neutralino. These limits substantially extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector.
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статьи в журналах
Резюме
A search for squarks and gluinos in final states containing hadronic jets, missing transverse momentum but no electrons or muons is presented. The data were recorded in 2015 by the ATLAS experiment in (sqrt{s}=13~{mathrm{TeV}}) proton–proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 3.2 (mathrm{fb}^{-1}) of analyzed data. Results are interpreted within simplified models that assume R-parity is conserved and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95 % confidence level on the mass of the gluino is set at 1.51 ({mathrm{TeV}}) for a simplified model incorporating only a gluino octet and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.03 ({mathrm{TeV}}) are excluded for a massless lightest neutralino. These limits substantially extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector.