$J/ψ$ Pair Production at the Tevatron with $\sqrt{s}=1.96~\mathrm{TeV}

Cong-Feng Qiao; Li-Ping Sun

doi:10.1088/1674-1137/37/3/033105

paper

$J / ψ$ Pair Production at the Tevatron with $\sqrt{s}=1.96~\mathrm{TeV}

arXiv:1204.1700 · doi:10.1088/1674-1137/37/3/033105

Abstract

We revisit the $J / ψ$ pair production issue at the Fermilab Tevatron Run II with the center-of-mass energy $s = 1.96 TeV$ . Both color-singlet and -octet production mechanisms are considered. Our result shows that the transverse momentum( $p_{T}$ ) scaling behaviors of double $J / ψ$ differential cross sections in color-singlet and -octet deviate distinctively from each other while $p_{T}$ is larger than $8 GeV$ , and with the luminosity of $5 f b^{- 1}$ the $J / ψ$ pair events from color-singlet scheme are substantially measurable in Tevatron experiments, even with certain lower transverse momentum cut. Hence the Tevatron is still possibly a platform to check the heavy quarkonium production mechanism.

5 pages, 3 figures, to appear in Chinese Physics C

J/ψ Pair Production at the Tevatron with $\sqrt{s}=1.96~\mathrm{TeV}

Abstract

$J / ψ$ Pair Production at the Tevatron with $\sqrt{s}=1.96~\mathrm{TeV}