J/ψ Polarization in pp Collisions at √s=7 TeV
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Publication date
2012
Authors
Abelev, B.I.
Chojnacki, M.
Christakoglou, P.
de Rooij, R. S.
Grelli, A.
Luparello, G.
Mischke, A.
Nooren, G
Peitzmann, T.
Reicher, M.
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Abstract
The ALICE Collaboration has studied J/ψ production in pp collisions at √s=7 TeV at the LHC through its muon pair decay. The polar and azimuthal angle distributions of the decay muons were measured, and results on the J/ψ polarization parameters λθ and λϕ were obtained. The study was performed in the kinematic region 2.5
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Abelev, B I, Chojnacki, M, Christakoglou, P, de Rooij, R S, Grelli, A, Luparello, G, Mischke, A, Nooren, G J L, Peitzmann, T, Reicher, M, Snellings, R J M, Thomas, D, van Leeuwen, M, Veldhoen, M, Verweij, M, Zhou, Y & Zynovyev, M 2012, 'J/ψ Polarization in pp Collisions at √s=7 TeV', Physical Review Letters, vol. 108, no. 8, 072301, pp. 082001/1-082001/10. https://doi.org/10.1103/PhysRevLett.108.082001