CMS Collaboration, Adair, A., Akgun, B., et al.. "Measurement of the ϒ(1S), ϒ(2S), and ϒ(3S) cross sections in pp collisions at √s=7 TeV." Physics Letters B, 727, no. 1-3 (2013) Elsevier: 101-125. http://dx.doi.org/10.1016/j.physletb.2013.10.033.
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