TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2019
DA  - 2019//
TI  - Observation of the doubly Cabibbo-suppressed decay Xi(+)(c) -> p phi
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 084
EP  - 18pp
VL  - 04
IS  - 4
PB  - Springer
KW  - Flavor physics
KW  - Branching fraction
KW  - Charm physics
KW  - Hadron-Hadron scattering (experiments)
AB  - 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.
SN  - 1029-8479
UR  - https://arxiv.org/abs/1901.06222
UR  - https://doi.org/10.1007/JHEP04(2019)084
DO  - 10.1007/JHEP04(2019)084
LA  - English
N1  - WOS:000465438300001
ID  - LHCbCollaborationAaij_etal2019
ER  -