# Search for narrow resonances lighter than $\Upsilon$ 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 $\Upsilon(1{\rm S})$ meson.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00368050
Contributor : Swarna Bassava <>
Submitted on : Friday, March 13, 2009 - 2:20:43 PM
Last modification on : Wednesday, September 15, 2021 - 2:56:02 PM

### Citation

T. Aaltonen, J. Adelman, T. Akimoto, B. Alvarez Gonzalez, S. Amerioy, et al.. Search for narrow resonances lighter than $\Upsilon$ mesons. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2009, 62, pp.319. ⟨10.1140/epjc/s10052-009-1057-4⟩. ⟨in2p3-00368050⟩

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