χ_{c1} and χ_{c2} Resonance Parameters with the Decays χ_{c1,c2}→J/ψμ^{+}μ^{-}.
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DOI: 10.1103/physrevlett.119.221801
Abstract: The decays χ_{c1}→J/ψμ^{+}μ^{-} and χ_{c2}→J/ψμ^{+}μ^{-} are observed and used to study the resonance parameters of the χ_{c1} and χ_{c2} mesons. The masses of these states are measured to be m(χ_{c1})=3510.71±0.04(stat)±0.09(syst) MeV and m(χ_{c2})=3556.10±0.06(stat)±0.11(syst) MeV, where the knowledge… read more here.
Keywords: stat syst; parameters decays; syst mev; resonance parameters ... See more keywords
Observation of the χ_{b1}(3P) and χ_{b2}(3P) and Measurement of their Masses.
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DOI: 10.1103/physrevlett.121.092002
Abstract: The χ_{b1}(3P) and χ_{b2}(3P) states are observed through their ϒ(3S)γ decays, using an event sample of proton-proton collisions collected by the CMS experiment at the CERN LHC. The data were collected at a center-of-mass energy… read more here.
Keywords: observation measurement; stat syst; mass; measurement masses ... See more keywords