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 and transverse momentum pT(J/ψ) < 10 GeV/c is σ(J/ψ J/ψ) = 5.1 ± 1.0 ± 1.1 nb, where the first uncertainty is statistical and the second systematic.

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2012). Observation of J/ψ-pair Production in pp Collisions at √s = 7 TeV. PHYSICS LETTERS. SECTION B, 707(1), 52-59 [10.1016/j.physletb.2011.12.015].

Observation of J/ψ-pair Production in pp Collisions at √s = 7 TeV

CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;
2012

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 < y(J/ψ) < 4.5 and transverse momentum pT(J/ψ) < 10 GeV/c is σ(J/ψ J/ψ) = 5.1 ± 1.0 ± 1.1 nb, where the first uncertainty is statistical and the second systematic.
2012
R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2012). Observation of J/ψ-pair Production in pp Collisions at √s = 7 TeV. PHYSICS LETTERS. SECTION B, 707(1), 52-59 [10.1016/j.physletb.2011.12.015].
R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; G. Alkhazov; P. Alvarez Cartelle; A.A. A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/108944
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