A measurement is presented of the relative prompt production rate of and with 4.6 fb of data collected by the CMS experiment at the LHC in pp collisions at [Formula: see text]. The two states are measured via their radiative decays →J/+, with the photon converting into an ee pair for J/ rapidity |(J/)|<1.0 and photon transverse momentum ()>0.5 GeV/. The measurement is given for six intervals of (J/) between 7 and 25 GeV/. The results are compared to theoretical predictions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4370953 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-012-2251-3 | DOI Listing |
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