@Article{LHCbCollaborationAaij_etal2018,
author="LHCb Collaboration (Aaij, R. et al
and Garcia Martin, L. M.
and Henry, L.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Vidal, J.
and Sanchez Mayordomo, C.",
title="First Observation of the Doubly Charmed Baryon Decay Xi(++)(cc) -> Xi(+)(c)pi(+)",
journal="Physical Review Letters",
year="2018",
publisher="Amer Physical Soc",
volume="121",
number="16",
pages="162002 - 10pp",
abstract="The doubly charmed baryon decay Xi(++)(cc) -> Xi(+)(c)pi(+) is observed for the first time, with a statistical significance of 5.9 sigma, confirming a recent observation of the baryon in the Lambda K-+(c)-pi(+)pi(+) final state. The data sample used corresponds to an integrated luminosity of 1.7 fb(-1), collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV. The Xi(++)(cc) mass is measured to be 3620.6 +/- 1.5(stat) +/- 0.4(syst) +/- 0.3(Xi(+)(c)) MeV/c(2) and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be [B(Xi(++)(cc) -> Xi(+)(c)pi(+)) x B(Xi(+)(c) -> pK(-)pi(+))]/[B(Xi(++)(cc) -> Lambda K-+(c)-pi(+)pi(+)) x B(Lambda(+)(c) -> pK(-)pi(+))] = 0.035 +/- 0.009 (stat) +/- 0.003 (syst).",
optnote="WOS:000447486300010",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3765), last updated on Tue, 30 Oct 2018 16:29:52 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.121.162002",
opturl="http://arxiv.org/abs/1807.01919",
opturl="https://doi.org/10.1103/PhysRevLett.121.162002",
archivePrefix="arXiv",
eprint="1807.01919",
language="English"
}