Tag: Helicity
LHCb measurements match expectations for B+ decay angular rates
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What the study found The measured normalised decay rate of B+ → J/ψ(→ μ+ μ−)K+ as a function of the lepton helicity angle agrees with expectations. The study also reports that the LHCb Upgrade I detector response is understood to the precision needed for related measurements. Why the authors say this matters The authors conclude…