@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="Evidence for the decay X(3872) -> psi(2S)gamma",
journal="Nuclear Physics B",
year="2014",
publisher="Elsevier Science Bv",
volume="886",
pages="665--680",
abstract="Evidence for the decay mode X(3872) -> psi(2S)gamma in B+ -> X(3872)K+ decays is found with a significance of 4.4 standard deviations. The analysis is based on a data sample of proton proton collisions, corresponding to an integrated luminosity of 3 fb(-1), collected with the LHCb detector, at centre-of-mass energies of 7 and 8 TeV. The ratio of the branching fraction of the X(3872) -> psi(2S)gamma decay to that of the X(3872) -> J/psi gamma decay is measured to be B(X(3872) -> psi(2S)gamma)/B(X(3872) -> J/psi gamma) = 2.46 +/- 0.64 +/- 0.29, where the first uncertainty is statistical and the second is systematic. The measured value does not support a pure D (D) over bar* molecular interpretation of the X(3872) state.",
optnote="WOS:000341344500024",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1918), last updated on Tue, 07 Oct 2014 14:28:40 +0000",
issn="0550-3213",
doi="10.1016/j.nuclphysb.2014.06.011",
opturl="http://arxiv.org/abs/1404.0275",
opturl="https://doi.org/10.1016/j.nuclphysb.2014.06.011",
archivePrefix="arXiv",
eprint="1404.0275",
language="English"
}