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Search for direct slepton and gaugino production in final states with two leptons and missing transverse momentum with the ATLAS detector in pp collisions at root s=7 TeV
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2905
2013 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 718, no 3, 879-901 p.Article in journal (Refereed) Published
Abstract [en]

A search for the electroweak pair production of charged sleptons and weak gauginos decaying into final states with two leptons is performed using 4.7 fb(-1) of proton-proton collision data at root s = 7 TeV recorded with the ATLAS experiment at the Large Hadron Collider. No significant excesses are observed with respect to the prediction from Standard Model processes. In the scenario of direct slepton production, if the sleptons decay directly into the lightest neutralino, left-handed slepton masses between 85 and 195 GeV are excluded at 95% confidence level for a 20 GeV neutralino. Chargino masses between 110 and 340 GeV are excluded in the scenario of direct production of wino-like chargino pairs decaying into the lightest neutralino via an intermediate on-shell charged slepton for a 10 GeV neutralino. The results are also interpreted in the framework of the phenomenological minimal supersymmetric Standard Model.

Place, publisher, year, edition, pages
2013. Vol. 718, no 3, 879-901 p.
Keyword [en]
Dynamical Symmetry-Breaking, Hadron Colliders, Supergauge Transformations, Supersymmetric Theories, Measuring Masses, Particle, Model, Currents, Physics, Matrix
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-119510DOI: 10.1016/j.physletb.2012.11.058ISI: 000314259500016Scopus ID: 2-s2.0-84871607642OAI: oai:DiVA.org:kth-119510DiVA: diva2:611215
Funder
Swedish Research Council
Note

QC 20130315. Author count: 2905

Available from: 2013-03-15 Created: 2013-03-15 Last updated: 2017-12-06Bibliographically approved

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Strandberg, Jonas

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