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

The LHCb Collaboration

doi:10.1016/j.physletb.2011.12.015

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

The LHCb Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 37.5pb−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
σJ/ψJ/ψ=5.1±1.0±1.1nb,
where the first uncertainty is statistical and the second systematic.

Original language	English
Journal	Physics Letters B
DOIs	https://doi.org/10.1016/j.physletb.2011.12.015
Publication status	Published - 10 Jan 2012

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10.1016/j.physletb.2011.12.015

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@article{95ec4348032642e888afd04cafb221de,

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

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 37.5pb−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 isσJ/ψJ/ψ=5.1±1.0±1.1nb,where the first uncertainty is statistical and the second systematic.",

author = "{The LHCb Collaboration} and Stephen Playfer and Matthew Needham and Franz Muheim and Peter Clarke and Yuehong Xie and Stephan Eisenhardt",

year = "2012",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2011.12.015",

language = "English",

journal = "Physics Letters B",

issn = "1873-2445",

publisher = "Elsevier",

}

TY - JOUR

T1 - Observation of J/ψ pair production in pp collisions at s√=7TeV.

AU - The LHCb Collaboration

AU - Playfer, Stephen

AU - Needham, Matthew

AU - Muheim, Franz

AU - Clarke, Peter

AU - Xie, Yuehong

AU - Eisenhardt, Stephan

PY - 2012/1/10

Y1 - 2012/1/10

N2 - 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 isσJ/ψJ/ψ=5.1±1.0±1.1nb,where the first uncertainty is statistical and the second systematic.

AB - 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 isσJ/ψJ/ψ=5.1±1.0±1.1nb,where the first uncertainty is statistical and the second systematic.

UR - http://www.scopus.com/inward/record.url?scp=84855194585&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2011.12.015

DO - 10.1016/j.physletb.2011.12.015

M3 - Article

AN - SCOPUS:84855194585

SN - 1873-2445

JO - Physics Letters B

JF - Physics Letters B

ER -

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

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