Regular Article - Theoretical Physics
Possible assignments of highly excited , and
Department of Physics, Shanghai University, 200444, Shanghai, China
Accepted: 16 May 2021
Published online: 28 May 2021
Possible assignments of highly excited , and are explored in a strong decay model. Decay widths, branching fraction ratios and the branching fractions of DN channels of theses assignments are computed. channel is a very important channel to provide information on the inner excitation and structure of these highly excited . In our analysis, may be a 1D-wave excited with , which has dominant DN decay channels with a branching fraction and a branching ratio . is very possibly a 1F-wave excited with ; In this assignment, the predicted total decay width ( MeV) is comparable to the measured MeV, and the predicted is consistent with the measured ; The DN channels are its dominant strong decay channels with a branching fraction . seems impossibly a 1D-wave excited with once the presently measured is confirmed. may be a 2P-wave excited . In this case, has a total decay width MeV, a branching ratio and the DN decay channels with a branching fraction . In order to understand the inner excitation and structure of these highly excited , measurements of those predicted quantities are required in the future.
© The Author(s) 2021
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