Search For Squarks And Gluinos In
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| Author | : Hannah Arnold |
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| Release | : 2016 |
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Abstract: 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 s√=13 TeV proton-proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 3.2 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 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 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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| Release | : 2016 |
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In this paper, 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 √s=13 TeV proton–proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 3.2 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 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 TeV are excluded for a massless lightest neutralino. Finally, these limits substantially extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector.
| Author | : ATLAS Collaboration CERN |
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| Total Pages | : 0 |
| Release | : 2018 |
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Abstract: A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in √s=13 TeV proton-proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb−1. The results are interpreted in the context of various models where squarks and gluinos are pair produced 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 2.03 TeV for a simplified model incorporating only a gluino 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 1.55 TeV are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector
| Author | : Russell Woods Smith |
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| Release | : 2017 |
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A search for squarks and gluinos in all hadronic final states in \sqrt(s) = 13 TeV proton-proton collisions using an integrated luminosity of 13.3 fb^-1 collected by the ATLAS detector at the LHC is presented. The search is the first to use Recursive Jigsaw Reconstruction, a technique to impose a particular decay tree interpretation on events. The decay tree is resolved using jigsaw rules, which define boosts between the relevant reference frames to define an uncorrelated basis of variables to describe the decay. The Recursive Jigsaw Reconstruction variables are used to define a set of selections with sensitivity to pair produced squarks and gluinos. No excess is observed over the Standard Model background. Results are interpreted in simplified models where squarks and gluinos are pair produced and decay to jets and the lightest supersymmetric particle. These limits substantially extend the region of supersymmetric phase space excluded by previous searches.
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| Release | : 1994 |
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| Release | : 1917 |
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| Author | : Richard Joyner Genik |
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| Total Pages | : 328 |
| Release | : 1998 |
| Genre | : Particles (Nuclear physics) |
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| Author | : Oliver Patrick Ricken |
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| Release | : 2019 |
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| Author | : Valerio Consorti |
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| Release | : 2015 |
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Zusammenfassung: A search for squarks and gluinos in final states containing jets, missing transverse momentum and no high-momentum electrons or muons is presented. The studies presented in this thesis extend the sensitivity of the previous analysis by including new selections and by substantially improving the background determination and the systematic uncertainties. No excess above the Standard Model background expectation is observed in both 7 and 8 TeV data collected by the ATLAS experiment. Limits are set on the squark and gluino masses in a number of SUSY scenarios in the MSSM model. These limits considerably extend the region of supersymmetric parameter space excluded by previous measurements with the ATLAS detector
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| Release | : 2008 |
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A search for squarks and gluinos performed by the CDF and D0 collaborations is presented. The sample taken during the RunII of the Fermilab TeVatron collider at (square root)s = 1.96 TeV is used. Supersymmetry (SUSY) is one of the most promising ways to solve crucial problems of the Standard Model (SM). This spacetime symmetry links bosons to fermions by introducing supersymmetric partners (sparticles) to all SM particles: squarks and gluinos are SUSY partners of quarks and gluons. The mass difference between the squark mass eigenstates depend on the mass of the corresponding quark. Hence squarks are (to a good approximation) mass degenerate for the two first generations whereas a (potentially) large mixing may appear for the third family, leading to a light stop. The former case corresponds to squarks and gluinos searches whereas dedicated searches for stop are performed for the latter.
