Publication: Inconsistency of the data on the K1(1270) → π K∗0(1430) decay width
Authors
Roca Zamora, Luis ; Liang, W.H. ; Oset, E.
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Publisher
Elsevier
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DOI
https://doi.org/10.1016/j.physletb.2021.136827
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info:eu-repo/semantics/article
Description
© 2021, Elsevier. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in Physics Letters B. To access the final edited and published work see https://doi.org/10.1016/j.physletb.2021.136827
Abstract
We show, using the same Lagrangian for the K1(1270) → π K∗
0 (1430) and K∗0 (1430) → K1(1270)π decays, that the present PDG data on the partial decay width of K1(1270) → π K∗0 (1430) implies a width
for K∗0 (1430) → K1(1270)π decay which is about one order of magnitude larger than the total K∗0 (1430) width. A discussion on this inconsistency is done, stressing its relationship to the existence of two K1(1270) states obtained with the chiral unitary theory, which are not considered in the experimental analyses of Kππ data.
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Citation
Physics Letters B 824 (2022) 136827
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