%0 Journal Article
%T Observation of the doubly Cabibbo-suppressed decay Xi(+)(c) -> p phi
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2019
%V 04
%N 4
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2019
%O WOS:000465438300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3993), last updated on Wed, 08 May 2019 11:54:08 +0000
%X The doubly Cabibbo- suppressed decay Xi(+)(c) -> p phi with ! K+K is observed for the fi rst time, with a statistical signi fi cance of more than fi fteen standard deviations. The data sample used in this analysis corresponds to an integrated luminosity of 2 fb recorded with the LHCb detector in pp collisions at a centre- of- mass energy of 8TeV. The ratio of branching fractions between the decay + c ! p and the singly Cabibbo- suppressed decay + c ! pK is measured to be B (Xi(+)(c) -> p phi) B (Xi(+)(c) -> p phi) = (19 : 8 0 : 7 0 : 9 0 : 2) 10 where the fi rst uncertainty is statistical, the second systematic and the third due to the knowledge of the Xi(+)(c) -> pK(+)pi(+) branching fraction.
%K Flavor physics
%K Branching fraction
%K Charm physics
%K Hadron-Hadron scattering (experiments)
%R 10.1007/JHEP04(2019)084
%U https://arxiv.org/abs/1901.06222
%U https://doi.org/10.1007/JHEP04(2019)084
%P 084-18pp