Observation of J/ψ pair production in pp collisions at s√=7TeV.

The LHCb Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The production of J/ψ pairs in proton-proton collisions at a centre-of-mass energy of 7 TeV has been observed using an integrated luminosity of 37.5pb−1 collected with the LHCb detector. The production cross-section for pairs with both \jpsi in the rapidity range 2<y^{J/\psi}<4.5 and transverse momentum p_{T}^{J/\psi}<10 GeV/c is
where the first uncertainty is statistical and the second systematic.
Original languageEnglish
JournalPhysics Letters B
Publication statusPublished - 10 Jan 2012


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