@Article{LHCbCollaborationAaij_etal2017,
author="LHCb Collaboration (Aaij, R. et al
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Valls, P.
and Sanchez Mayordomo, C.",
title="Observation of J/psi phi Structures Consistent with Exotic States from Amplitude Analysis of B+ -> J/psi phi K+ Decays",
journal="Physical Review Letters",
year="2017",
publisher="Amer Physical Soc",
volume="118",
number="2",
pages="022003--10pp",
abstract="The first full amplitude analysis of B+ -> J/psi phi K+ with J/psi -> mu(+)mu(-), phi -> K+K- decays is performed with a data sample of 3 fb(-1) of pp collision data collected at root s = 7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into phi K+ , and four J/psi phi structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.",
optnote="WOS:000391926900004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2946), last updated on Thu, 23 Feb 2017 09:10:09 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.118.022003",
opturl="http://arxiv.org/abs/1606.07895",
opturl="https://doi.org/10.1103/PhysRevLett.118.022003",
archivePrefix="arXiv",
eprint="1606.07895",
language="English"
}