CERN Accelerating science

Article
Report number arXiv:1308.2631 ; CERN-PH-EP-2013-119 ; CERN-PH-EP-2013-119
Title Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
Related titleSearch for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in sqrt{s}=8 TeV pp collisions with the ATLAS detector
Author(s) ATLAS Collaboration  顯示全部 2917 名作者
Publication 2013
Imprint 12 Aug 2013
Number of pages 40
Note Comments: 26 pages plus author list (51 pages total), 6 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-05/
26 pages plus author list (51 pages total), 6 figures, 7 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-05/
In: JHEP 10 (2013) 189
DOI 10.1007/JHEP10(2013)189
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry ; experimental results
Abstract The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks is reported. This search uses 20.1 fb1 of pp collisions at √s = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (b~1 and t~1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from a b-quark. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third generation squarks are derived in phenomenological supersymmetric R-parity conserving models in which either the bottom or the top squark is the lightest squark. The b~1 is assumed to decay via b~1 -> bχ~10 and the t~1 via t~1 -> bχ~1±, with undetectable products of the subsequent decay of the χ~1± due to the small mass splitting between the χ~1± and the χ~10.
Copyright/License publication: © 2013-2024 CERN (License: CC-BY-3.0)
preprint: © 2013-2024 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: ATLAS-publication-committee-chair@cern.ch


 記錄創建於2013-08-12,最後更新在2024-04-19


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