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First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −

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Figure

Figure 1. Invariant mass of B+ →K+π+π−µ+µ− candidates in bins of q2 with fit projections over-laid
Table 1.Signal yields for the decay B+ →K+π+π−µ+µ− and resulting differential branchingfractions in bins of q2
Figure 3. Differential branching fraction dB(B+ →K+π+π−µ+µ−)/dq2. Errors shown includeboth statistical and systematic uncertainties.Shaded regions indicate the vetoed charmoniumresonances.
Figure 5. Invariant m(φK+µ+µ−) distributions for (a) B+ → φK+µ+µ− and (b) B+ → J/ψφK+decays with fit projections overlaid.

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