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arXiv · 0903.2060

Search for narrow resonances lighter than $Υ$ mesons

The CDF collaboration·T. Aaltonen
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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 $Υ(1{\rm S})$ meson.

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The CDF collaboration, T. Aaltonen. 2009-03-11. Search for narrow resonances lighter than $Υ$ mesons. https://doi.org/10.1140/epjc%2Fs10052-009-1057-4

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