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 37.5 pb -1 collected with the LHCb detector. The production cross-section for pairs with both J/ψ in the rapidity range 2<y J/ψ<4.5 ; transverse momentum p T J/ψ<10 GeV/c is σ J/ψJ/ψ=5.1±1.0±1.1 nb, where the first uncertainty is statistical ; the second systematic. © 2011 CERN.

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

PAPPAGALLO, MARCO IGNAZIO;
2012-01-01

Abstract

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 37.5 pb -1 collected with the LHCb detector. The production cross-section for pairs with both J/ψ in the rapidity range 2
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11586/179817
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