@Article{LHCbCollaborationAaij_etal2019,
author="LHCb Collaboration (Aaij, R. et al
and Garcia Martin, L. M.
and Henry, L.
and Jashal, B. K.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Vidal, J.
and Sanchez Mayordomo, C.",
title="Near-threshold DD spectroscopy and observation of a new charmonium state",
journal="Journal of High Energy Physics",
year="2019",
publisher="Springer",
volume="07",
number="7",
pages="035--23pp",
optkeywords="Charm physics; Hadron-Hadron scattering (experiments); Heavy quark production; Quarkonium",
abstract="Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb, collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X(3842) ! D0 D 0 and X(3842) ! D+D. The mass and the natural width of this state are measured to be where the fi rst uncertainty is statistical and the second is systematic. The observed mass and narrow natural width suggest the interpretation of the new state as the unobserved spin-3 3 1 3 D 3 charmonium state. In addition, prompt hadroproduction of the (3770) and 2 (3930) states is observed for the fi rst time, and the parameters of these states are measured to be m (3770) = 3778 : 1 0 : 7 0 : 6MeV where the first uncertainty is statistical and the second is systematic.",
optnote="WOS:000475573300001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4092), last updated on Mon, 19 Aug 2019 07:31:22 +0000",
issn="1029-8479",
doi="10.1007/JHEP07(2019)035",
opturl="https://arxiv.org/abs/1903.12240",
opturl="https://doi.org/10.1007/JHEP07(2019)035",
language="English"
}