Engineering topics
De Mori, F.
Publications and source records attributed to De Mori, F..
Amplitude analysis and branching-fraction measurement of D s + → K S 0 K − π + π +
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Measurement of the D → K - π + π + π- and D → K - π + π 0 coherence factors and average strong-phase differences in quantum-correlated $ D\overline{D} $ decays
The decays D → K - π + π + π - and D → K - π + π 0 are studied in a sample of quantum-correlated \( D\overline{D} \) pairs produced through the process e + e - → ψ (3770) → \( D\overline{D} \) , exploiting a data set collected by the BESIII experiment that corresponds to an integrated luminosity of 2.93 fb - 1 . Here D indicates a quantum superposition of a D 0 and a \( {\overline{D}}^0 \) meson. By reconstructing one neutral charm meson in a signal decay, and the other in the same or a different final state, observables are measured that contain information on the coherence factors and average strong-phase differences of each of the signal modes. These parameters are critical inputs in the measurement of the angle γ of the Unitarity Triangle in B - → DK - decays at the LHCb and Belle II experiments. The coherence factors are determined to be R K 3 π = \( {0.52}_{-0.10}^{+0.12} \) and \( {R}_{K{\pi \pi}^0} \) = 0 . 78 ± 0 . 04, with values for the average strong-phase differences that are \( {\delta}_D^{K3\pi }=\left({167}_{-19}^{+31}\right){}^{\circ} \) and \( {\delta}_D^{K{\pi \pi}^0}=\left({196}_{-15}^{+14}\right){}^{\circ} \) , where the uncertainties include both statistical and systematic contributions. The analysis is re-performed in four bins of the phase-space of the D → K - π + π + π - to yield results that will allow for a more sensitive measurement of γ with this mode, to which the BESIII inputs will contribute an uncertainty of around 6°.
Search for the decay D s + → a 0 ( 980 ) 0 e + ν e
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Measurement of the branching fraction of and search for a C P -violating asymmetry in η ′ → π + π − e + e − at BESIII
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Determination of the Λ c + spin via the reaction e + e − → Λ c Λ ¯ c
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Search for new decay modes of the ψ 2 ( 3823 ) and the process e + e − → π 0 π 0 ψ 2 ( 3823 )
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Measurement of the absolute branching fraction of Λ c + → p K S 0 η decays
Based on 586 pb -1 of e + e - annihilation data collected at a center-of-mass energy of √s = 4.6 GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of $Λ^+_c$ → $pK^0_Sη$ decays is measured for the first time to be $B$($Λ^+_c$ → $pK^0_Sη$) = (0.414±0.084±0.028)%, where the first uncertainty is statistical and the second is systematic. The result is compatible with a previous CLEO result on the relative branching fraction B ( Λ c + → p K S 0 η ) B ( Λ c + → p K − π + ) , and consistent with theoretical predictions of SU(3) flavor symmetry.
Measurement of the Born cross sections for e + e − → η ′ π + π − at center-of-mass energies between 2.00 and 3.08 GeV
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Search for the lepton number violating decay Σ − → p e − e − and the rare inclusive decay Σ − → Σ + X
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Search for the reaction e + e − → χ c J π + π − and a charmoniumlike structure decaying to χ c J π ± between 4.18 and 4.60 GeV
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Study of e + e − → 2 ( p p ¯ ) at center-of-mass energies between 4.0 and 4.6 GeV
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Observation of a Near-Threshold Structure in the K + Recoil-Mass Spectra in e + e − → K + ( D s − D * 0 + D s * − D 0 )
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Model-Independent Determination of the Spin of the Ω − and Its Polarization Alignment in ψ ( 3686 ) → Ω − Ω ¯ +
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Measurements of e + e − → η c π + π − π 0 , η c π + π − , and η c π 0 γ at s from 4.18 to 4.60 GeV, and search for a Z c state close to the D D ¯ threshold decaying to η c π at s = 4.23 GeV
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Search for the reaction channel e + e − → η c η π + π − at center-of-mass energies from 4.23 to 4.60 GeV
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