@Article{LHCbCollaborationAaij_etal2013,
author="LHCb Collaboration (Aaij, R. et al
and Oyanguren, A.
and Ruiz Valls, P.",
title="Determination of the X(3872) Meson Quantum Numbers",
journal="Physical Review Letters",
year="2013",
publisher="Amer Physical Soc",
volume="110",
number="22",
pages="222001--8pp",
abstract="The quantum numbers of the X(3872) meson are determined to be J(PC) = 1(++) based on angular correlations in B+ -> X(3872)K+ decays, where X(3872) -> pi(+) pi(-) j/psi and J/psi -> pi(+) mu(-). The data correspond to 1.0 fb(-1) of pp collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J(PC) = 2(-+) is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X(3872) state.",
optnote="WOS:000319682200007",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1466), last updated on Thu, 11 Jul 2013 11:22:21 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.110.222001",
opturl="http://arxiv.org/abs/arXiv:1302.6269",
opturl="https://doi.org/10.1103/PhysRevLett.110.222001",
archivePrefix="arXiv",
eprint="arXiv:1302.6269",
language="English"
}