Measurement of the Λb polarization and angular parameters in Λb →j /ψ Λ decays from pp collisions at s =7 and 8 TeV MEASUREMENT of the Λb POLARIZATION ⋯ A. M. SIRUNYAN et al
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DOI: 10.1103/physrevd.97.072010
Abstract: An analysis of the bottom baryon decay Λb → J=ψð→ μþμ−ÞΛð→ pπ−Þ is performed to measure the Λb polarization and three angular parameters in data from pp collisions at ffiffi s p 1⁄4 7 and… read more here.
Keywords: polarization angular; angular parameters; parameters decays; polarization ... See more keywords
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