@Article{LHCbCollaborationAaij_etal2014,
author="LHCb Collaboration (Aaij, R. et al
and Martinez-Vidal, F.
and Oyanguren, A.
and Ruiz Valls, P.
and Sanchez Mayordomo, C.",
title="Observation of the Resonant Character of the Z(4430)(-) State",
journal="Physical Review Letters",
year="2014",
publisher="Amer Physical Soc",
volume="112",
number="22",
pages="222002--9pp",
abstract="Resonant structures in B-0 -> psi{\textquoteright}pi K--(+) decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3 fb(-1) collected with the LHCb detector. The data cannot be described with K+pi(-) resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)(-) -> psi{\textquoteright}pi(-) component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)(-) amplitude with the psi{\textquoteright}pi(-) mass establishes the resonant nature of this particle. The mass and width measurements are substantially improved. The spin parity is determined unambiguously to be 1(+).",
optnote="WOS:000336920800007",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1815), last updated on Mon, 22 Sep 2014 13:09:54 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.112.222002",
opturl="http://arxiv.org/abs/1404.1903",
opturl="https://doi.org/10.1103/PhysRevLett.112.222002",
archivePrefix="arXiv",
eprint="1404.1903",
language="English"
}