We report an amplitude analysis and branching fraction measurement of decay using a data sample of recorded with BESIII detector at a center-of-mass energy of 4.178 GeV. We perform a model-independent partial wave analysis in the low mass region to determine the S-wave line shape, followed by an amplitude analysis of our very pure high-statistics sample. With the detection efficiency based on the amplitude analysis results, the absolute branching fraction is measured to be .
Amplitude analysis and branching fraction measurement of
Amoroso A.;Bianchi F.;Bortone A.;Destefanis M.;De Mori F.;Greco M.;Lavezzi L.;Maggiora M.;Marcello S.;Rivetti A.;Sosio S.;Spataro S.;
2021-01-01
Abstract
We report an amplitude analysis and branching fraction measurement of decay using a data sample of recorded with BESIII detector at a center-of-mass energy of 4.178 GeV. We perform a model-independent partial wave analysis in the low mass region to determine the S-wave line shape, followed by an amplitude analysis of our very pure high-statistics sample. With the detection efficiency based on the amplitude analysis results, the absolute branching fraction is measured to be .File in questo prodotto:
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