An amplitude analysis of the Cabibbo-favored decay D+ → K−π+π+π0 is performed, using 7.93 fb−1 of e+e− collision data collected with the BESIII detector at the center-of-mass energy of 3.773 GeV. The branching fractions of the intermediate processes are measured, with the dominant contribution D+→K¯∗8920ρ770+ observed to have a branching fraction of (4.35 ± 0.07stat.± 0.17syst.)%. With the detection efficiency derived from the amplitude analysis, the absolute branching fraction of D+→ K−π+π+π0 is measured to be (6.35 ± 0.04stat.± 0.07syst.)%.

Amplitude analysis and branching fraction measurement of the Cabibbo-favored decay D+ → K−π+π+π0

Garzia, I.;
2025

Abstract

An amplitude analysis of the Cabibbo-favored decay D+ → K−π+π+π0 is performed, using 7.93 fb−1 of e+e− collision data collected with the BESIII detector at the center-of-mass energy of 3.773 GeV. The branching fractions of the intermediate processes are measured, with the dominant contribution D+→K¯∗8920ρ770+ observed to have a branching fraction of (4.35 ± 0.07stat.± 0.17syst.)%. With the detection efficiency derived from the amplitude analysis, the absolute branching fraction of D+→ K−π+π+π0 is measured to be (6.35 ± 0.04stat.± 0.07syst.)%.
2025
Null, Null; Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2600670
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