Observation of J/ψ-pair production in pp collisions at

By R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, Federico Alessio, M. Alexander, G. Alkhazov and 560 more. 2011

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The production of J/ψ 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 J / ψ in the rapidity range 2 2 y J / ψ 4.5 and transverse momentum p T J / ψ 10 GeV / c is σJ/ψJ/ψ=5.1±1.0±1.1 nb, σ J / ψ J / ψ = 5.1 ± 1.0 ± 1.1 nb , where the first uncertainty is statistical and the second systematic.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c6f194ae5e6db6c0bafcca0b5c712ee62c46ea41

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In Nuclear and High Energy Physics

Citations in the corpus

Measurement of the $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s} = 13 \,{\mathrm{TeV}}$ (2016, methodology): “After having been ﬁrst observed by the NA3 collaboration in pion-nuclear and proton-nuclear interactions [55, 56], J/ψ pair production has been measured in pp collisions by the LHCb [57] and CMS [58] experiments at √ s = 7 TeV and by the ATLAS experiment [59] at √ s = 8 TeV.”
Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era (2018, background): “So far the LHCb collaboration has analysed double J/ψ production at 7 TeV and 13 TeV data with relatively small datasets [595,596].”
Opportunities in Flavour Physics at the HL-LHC and HE-LHC (2018, background): “So far the LHCb collaboration has analysed double-J/ production in 7 TeV and 13 TeV data with relatively small datasets [791, 792].”
Observation of an exotic narrow doubly charmed tetraquark (2021, background): “• Imperfect knowledge of detector resolution model: to estimate the associated systematic uncertainty alternative resolution functions are studied, namely a symmetric variant of an Apollonios function [112]; a modified Gaussian function with symmetric power-law tails on both sides of the distributio”
Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions (2015, background): “After a discovery phase during which the measurement of the mass and the lifetime of the Bc was the priority, the first measurement of the pT and y spectra of promptly produced B+c was carried out by the LHCb Collaboration [210].”
Implications of LHCb measurements and future prospects - eScholarship (2013, background): “These include probes of QCD both in production, such as studies of multi-parton scattering [523,608], and in decay, such as studies of exotic hadrons like the X(3872) [554] and the putative Z(4430) state.”