Search for narrow resonances lighter than ${\rm Y}$ mesons

Abstract

We report a search for narrow resonances, produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV, that decay into muon pairs with invariant mass between 6.3 and 9.0 GeV/c^2. The data, collected with the CDF~II detector at the Fermilab Tevatron collider, correspond to an integrated luminosity of 630 pb${}^{-1}$. We use the dimuon invariant mass distribution to set 90% upper credible limits of about 1% to the ratio of the production cross section times muonic branching fraction of possible narrow resonances to that of the ${\rm Y}(1\mathrm{S})$ meson.

9 pages, 3 figures

References in corpus (5)

• Measurement of the polarization of the ${\rm Y}(1S)$ and ${\rm Y}(2S)$ states in $p\bar{p}$ collisions at $\sqrt{s}=$1.96 TeV
• Track Extrapolation and Distribution for the CDF-II Trigger System
• Measurement of correlated b-bbar production in p-pbar collisions at sqrt(s)=1960GeV
• Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Tevatron
• Search for narrow resonances below the Upsilon mesons

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• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• Coy Dark Matter and the anomalous magnetic moment
• Direct production of a light CP-odd Higgs boson at the Tevatron and LHC
• Review of Physics Results from the Tevatron: Heavy Flavor Physics