Search for high-mass resonances decaying to dilepton final states in pp collisions at √s=7 TeV with the ATLAS detector
Date
2012
Authors
Jackson, P.
Soni, N.
White, M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
The Journal of High Energy Physics, 2012; 2012(11):138-0-138-45
Statement of Responsibility
The ATLAS collaboration
Conference Name
Abstract
<jats:title>A<jats:sc>bstract</jats:sc>
</jats:title>
<jats:p>The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to an electron-positron pair or a muon-antimuon pair. The search is sensitive to heavy neutral <jats:italic>Z′</jats:italic> gauge bosons, Randall-Sundrum gravitons, <jats:italic>Z</jats:italic>
<jats:sup>*</jats:sup> bosons, techni-mesons, Kaluza-Klein <jats:italic>Z/γ</jats:italic> bosons, and bosons predicted by Torsion models. Results are presented based on an analysis of <jats:italic>pp</jats:italic> collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.9 fb<jats:sup>−1</jats:sup> in the <jats:italic>e</jats:italic>
<jats:sup>+</jats:sup>
<jats:italic>e</jats:italic>
<jats:sup>−</jats:sup> channel and 5.0 fb<jats:sup>−1</jats:sup> in the <jats:italic>μ</jats:italic>
<jats:sup>+</jats:sup>
<jats:italic>μ</jats:italic>
<jats:sup>−</jats:sup>channel. A <jats:italic>Z</jats:italic>
<jats:sup>′</jats:sup> boson with Standard Model-like couplings is excluded at 95 % confidence level for masses below 2.22 TeV. A Randall-Sundrum graviton with coupling <jats:inline-formula>
<jats:tex-math>$ {k \left/ {{{{\overline{M}}_{\mathrm{Pl}}}}} \right.}=0.1 $</jats:tex-math>
</jats:inline-formula> is excluded at 95 % confidence level for masses below 2.16 TeV. Limits on the other models are also presented, including Technicolor and Minimal <jats:italic>Z′</jats:italic> Models.</jats:p>
School/Discipline
Dissertation Note
Provenance
Description
Extent: 46p. ATLAS Collaboration Contributor: Paul Douglas Jackson, Nitesh Soni
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Rights
Open Access, Copyright CERN, for the benefit of the ATLAS collaboration