Search for narrow resonances below the Upsilon mesons

Abstract

We have investigated the invariant mass spectrum of dimuons collected by the CDF experiment during the 1992-1995 run of the Fermilab Tevatron collider to improve the limit on the existence of narrow resonances set by the experiments at the SPEAR e+e- collider. In the mass range 6.3-9.0 GeV/c^2, we derive 90% upper credible limits to the ratio of the production cross section times muonic branching fraction of possible narrow resonances to that of the Y(1S) meson. In this mass range, the average limit varies from 1.7 to 0.5%. This limit is much worse at the mass of 7.2 GeV/c^2 due to an excess of 250+-61 events with a width consistent with the detector resolution.

20 pages, 9 figures. This version has some typos fixed in the text and bibliography. A reference was added in bibliography. Submitted to Phys. Rev. D With this last submission we provide the version accepted for publication in Phys.Rev.D

References in corpus (8)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV
• Heavy-Quark Production
• Measurement of the $t\bar{t}productioncrosssectionin$p\bar{p}$collisionsat$\sqrt{s}$ = 1.8 TeV
• Search for the Flavor-Changing Neutral Current Decays B^+ -> mu^+ mu^- K^+ and B^0 -> mu^+ mu^-K^{*0}
• Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)?
• Closing the light sbottom mass window from a compilation of e+e- -> hadron data
• Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Tevatron

Cited by in corpus (5)

• Search for a light pseudoscalar Higgs boson in the dimuon decay channel in pp collisions at sqrt(s) = 7 TeV
• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• Direct production of a light CP-odd Higgs boson at the Tevatron and LHC
• Search for narrow resonances lighter than ${\rm Y}$ mesons
• Phenomenological study of the atypical heavy flavor production observed at the Fermilab Tevatron