Search for dilepton resonances in pp collisions at root s 7 TeV with the ATLAS Detector

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American Physical Society

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

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.

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Anahtar Kelimeler

Fermion-Pair Production, Parton Distributions, Gauge Bosons, LHC, Lep, Physics, Hadron, Models

Kaynak

Physical Review Letters

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Scopus Q Değeri

Cilt

107

Sayı

27

Künye

Aad, G, Abbott, B., Abdallah, J., Abdelalim, A.A., Abdesselam, A., Abdinov, O. ... ATLAS Collaboration. (2011). Search for dilepton resonances in pp collisions at root s 7 TeV with the ATLAS Detector. Physical Review Letters, 107 (27), 19. https://dx.doi.org/10.1103/PhysRevLett.107.272002.

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