Search results for "Invariant-mass spectrum"

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Search for high-mass resonances decaying to dimuons at CDF.

2009

We present a search for high-mass neutral resonances using dimuon data corresponding to an integrated luminosity of 2.3 fb(-1) collected in pp collisions at s=1.96 TeV by the CDF II detector at the Fermilab Tevatron. No significant excess above the standard model expectation is observed in the dimuon invariant-mass spectrum. We set 95% confidence level upper limits on sigma BR(pp -> X ->mu mu), where X is a boson with spin-0, 1, or 2. Using these cross section limits, we determine lower mass limits on sneutrinos in R-parity-violating supersymmetric models, Z(') bosons, and Kaluza-Klein gravitons in the Randall-Sundrum model.

HIGH MASS RESONANCEParticle physicsFermilab TevatronTevatronGeneral Physics and AstronomyFOS: Physical sciencesddc:500.2114 Physical sciencesResonance7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsTellurium compoundsHigh Energy Physics - Experiment (hep-ex)Integrated luminosities0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Fermilab010306 general physicsBosonsBosonPhysicsMuonMass spectrometryhep-ex010308 nuclear & particles physicsPhysicsInvariant-mass spectrum13.85.Rm 13.85.Qk 12.60.Cn 14.70.Pw 04.50.-hHigh Energy Physics::PhenomenologyConfidence levelsGravitonSupersymmetryUpper limitsSupersymmetric modelsCross sectionsRandall–Sundrum modelThe standard modelsMass spectrumCDFHigh Energy Physics::ExperimentPhysical review letters
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