@Article{LHCbCollaborationAaij_etal2021,
author="LHCb Collaboration (Aaij, R. et al
and Henry, L.
and Jashal, B. K.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Vidal, J.",
title="Observation of a New Excited D-s(+) Meson in B-0 -> D- D+ K+ pi(-) Decays",
journal="Physical Review Letters",
year="2021",
publisher="Amer Physical Soc",
volume="126",
number="12",
pages="122002 - 11pp",
abstract="Using pp collision data corresponding to an integrated luminosity of 5.4 fb(-1) collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B-0 -> D- D+ K+ pi(-) decay is studied. A new excited D-s(+) meson is observed decaying into the D+K+pi(-) final state with large statistical significance. The pole mass and width, and the spin parity of the new state are measured with an amplitude analysis to be m(R) = 2591 +/- 6 +/- 7 MeV, Gamma(R) = 89 +/- 16 +/- 12 MeV, and J(P) = 0(-), where the first uncertainty is statistical and the second systematic. Fit fractions for all components in the amplitude analysis are also reported. The new resonance, denoted as D-s0(2590)(+), is a strong candidate to be the D-s(2(1)S(0))(+) state, the radial excitation of the pseudoscalar ground-state D-s(+) meson.",
optnote="WOS:000646119900007",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4806), last updated on Thu, 20 May 2021 09:24:02 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.126.122002",
opturl="https://arxiv.org/abs/2011.09112",
opturl="https://doi.org/10.1103/PhysRevLett.126.122002",
language="English"
}