2019
DOI: 10.1103/physrevlett.123.112001
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Amplitude Analysis of Ds+π+π0η and First Observation of the W -Annihilation Domin

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Cited by 23 publications
(3 citation statements)
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“…For the uncertainty from the integrated yields, the expected yield of peaking background in each phase space region is varied according to a Gaussian distribution. This distribution has the nominal value of the peaking-background yield as the mean, and a width which combines the uncertainties from the BFs of peaking-background decays, and the uncertainties arising from tracking [46], PID [46], and π 0 reconstruction efficiencies [47]. The distributions over the Dalitz plots for peaking backgrounds that are CP eigenstates, or D →…”
Section: Systematic Uncertaintiesmentioning
confidence: 99%
“…For the uncertainty from the integrated yields, the expected yield of peaking background in each phase space region is varied according to a Gaussian distribution. This distribution has the nominal value of the peaking-background yield as the mean, and a width which combines the uncertainties from the BFs of peaking-background decays, and the uncertainties arising from tracking [46], PID [46], and π 0 reconstruction efficiencies [47]. The distributions over the Dalitz plots for peaking backgrounds that are CP eigenstates, or D →…”
Section: Systematic Uncertaintiesmentioning
confidence: 99%
“…The signal shape is described by an MC-simulated 2D probability density function (PDF) convolved with a Gaussian function, whose parameters are derived from the corresponding M sig and M γγ fits, to consider resolution the difference between data and MC simulation. The shapes for various background components are modeled from the inclusive MC samples, where the model for B 3π2π 0 is obtained from the amplitude analyses of the decays D + s → π 0 π + η (η → π 0 π + π − ) [24] and D + s → π 0 π 0 π + π + π − . The yield of B 3π2π 0 is fixed to 152.9 according to the measured BFs, while the yields of B ηX and B other are floating parameters in the fit.…”
Section: Event Selectionmentioning
confidence: 99%
“…The simulation of inclusive MC samples is described in Ref. [22]. The signal process e þ e − → γXð3872Þ is generated assuming it is a pure electric dipole (E1) transition, and the subsequent Xð3872Þ decays are generated uniformly in the phase space except Xð3872Þ → γJ=ψðγψ 0 Þ, which is generated assuming a pure E1 transition too.…”
mentioning
confidence: 99%