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Search for a heavy neutral particle decaying into an electron and a muon using 1 fb(-1) of ATLAS data
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3024
2011 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 71, no 12, 1809- p.Article in journal (Refereed) Published
Abstract [en]

A search is presented for a high mass neutral particle that decays directly to the e(+/-) mu(-/+) final state. The data sample was recorded by the ATLAS detector in root s = 7 TeV pp collisions at the LHC from March to June 2011 and corresponds to an integrated luminosity of 1.07 fb(-1). The data are found to be consistent with the Standard Model background. The high e(+/-) mu(-/+) mass region is used to set 95% confidence level upper limits on the production of two possible new physics processes: tau sneutrinos in an R-parity violating supersymmetric model and Z'-like vector bosons in a lepton flavor violating model.

Place, publisher, year, edition, pages
2011. Vol. 71, no 12, 1809- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-71578DOI: 10.1140/epjc/s10052-011-1809-9ISI: 000298347800001ScopusID: 2-s2.0-84925852439OAI: diva2:487980
Author count 3024. QC 20120201Available from: 2012-02-01 Created: 2012-01-31 Last updated: 2012-04-04Bibliographically approved

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Grahn, Karl-JohanLund-Jensen, BengtStrandberg, Jonas
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