6533b7d6fe1ef96bd12657ce
RESEARCH PRODUCT
Search for dilepton resonances in pp collisions at √s = 7 TeV with the ATLAS detector
Atlas CollaborationVasiliki MitsouAntonio Ferrer SoriaSusana Cabrera UrbánMaría Victoria Castillo GiménezJuan Antonio Valls FerrerJuan A. Fuster VerdúEduardo Ros MartínezLuca FioriniYesenia Hernández JiménezCarmen García GarcíaSantiago González De La HozCarlos Lacasta LlácerEmilio Higón RodríguezJosé Salt CairolsMiguel Villaplana PérezSalvador Martí Garcíasubject
Physics::General PhysicsAcceleradors de partículesHigh Energy Physics::PhenomenologyHigh Energy Physics::ExperimentDetectors de radiaciódescription
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 sqrt(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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |