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@ARTICLE{Asokan:1017534,
author = {Asokan, Anuvind and Tang, Meng-Na and Guo, Feng-Kun and
Hanhart, Christoph and Kamiya, Yuki and Meißner, Ulf-G.},
title = {{C}an the two-pole structure of the $${D}_{0}^{*}(2300)$$
be understood from recent lattice data?},
journal = {The European physical journal / C},
volume = {83},
number = {9},
issn = {1434-6044},
address = {Heidelberg},
publisher = {Springer},
reportid = {FZJ-2023-04183},
pages = {850},
year = {2023},
note = {DFG(Project-ID 196253076), VolkswagenStiftung(93562),
NSFC(12125507), CAS(XDB34030000), CAS(2018DM0034), MKW
NRW(NW21-024-A)},
abstract = {It was demonstrated in a series of papers employing
unitarized chiral perturbation theory that the phenomenology
of the scalar open-charm state, the , can be understood as
the interplay of two poles, corresponding to two
scalar-isospin doublet states with different SU(3) flavor
content. Within this formalism the lightest open charm
positive parity states emerge as being dynamically generated
from the scattering of the Goldstone-boson octet off D
mesons, a picture that at the same time solves various
problems that the experimental observations posed. However,
in recent lattice studies of scattering at different pion
masses only one pole was reported in the channel, while it
was not possible to extract reliable parameters of a second
pole from the lattice data. In this paper we demonstrate how
this seeming contradiction can be understood and that
imposing SU(3) constraints on the fitting amplitudes allows
one to extract information on the second pole from the
lattice data with minimal bias. The results may also be
regarded as a showcase how approximate symmetries can be
imposed in the K-matrix formalism to reduce the number of
parameters.},
cin = {IAS-4 / IKP-3},
ddc = {530},
cid = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511) / DFG project
196253076 - TRR 110: Symmetrien und Strukturbildung in der
Quantenchromodynamik (196253076) / NRW-FAIR (NW21-024-A)},
pid = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076 /
G:(NRW)NW21-024-A},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001095457500009},
doi = {10.1140/epjc/s10052-023-11953-6},
url = {https://juser.fz-juelich.de/record/1017534},
}