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Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at root s=7 TeV

Aad G.
•
Abbott B.
•
Abdallah J.
altro
Zwalinski L.
2012
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
The results of a search for pair production of the lighter scalar partners of top quarks (t~1) in 2.05 fb-1 of pp collisions at s=7 TeV using the ATLAS experiment at the LHC are reported. Scalar top quarks are searched for in events with two same flavour opposite-sign leptons (e, μ) with invariant mass consistent with the Z boson mass, large missing transverse momentum and jets in the final state. At least one of the jets is identified as originating from a b-quark. No excess over Standard Model expectations is found. The results are interpreted in the framework of R-parity conserving, gauge mediated Supersymmetry breaking 'natural' scenarios, where the neutralino (χ~10) is the next-to-lightest supersymmetric particle. Scalar top quark masses up to 310 GeV are excluded for 115GeVmZ.
DOI
10.1016/j.physletb.2012.07.010
WOS
WOS:000308519000009
Archivio
http://hdl.handle.net/11390/884286
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84938558426
Diritti
metadata only access
Scopus© citazioni
25
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
26
Data di acquisizione
Mar 16, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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