Search for Dilepton Resonances in pp Collisions at root s 7 TeV with the ATLAS Detector
2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 107, no 27, 272002- p.Article in journal (Refereed) Published
This Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at root s = 7 TeV at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.21) fb(-1) in the e(+)e(-) (mu(+)mu(-)) channel. No statistically significant excess above the standard model expectation is observed and upper limits are set at the 95% C. L. on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower mass limit of 1.83 TeV on the sequential standard model Z' boson is set. A Randall-Sundrum graviton with coupling k/(M) over bar Pl = 0.1 is excluded at 95% C. L. for masses below 1.63 TeV.
Place, publisher, year, edition, pages
2011. Vol. 107, no 27, 272002- p.
IdentifiersURN: urn:nbn:se:uu:diva-171773DOI: 10.1103/PhysRevLett.107.272002ISI: 000298611000012OAI: oai:DiVA.org:uu-171773DiVA: diva2:512375
With 3023 more authors from the ATLAS Collaboration.2012-03-272012-03-272012-03-27Bibliographically approved