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Observation of the doubly Cabibbo-suppressed decay Ξ c +  → pϕ

Abstract:

The doubly Cabibbo-suppressed decay Ξ c+ → pϕ with ϕ → K + K − is observed for the first time, with a statistical significance of more than fifteen standard deviations. The data sample used in this analysis corresponds to an integrated luminosity of 2 fb −1 recorded with the LHCb detector in pp collisions at a centre-of-mass energy of 8 TeV. The ratio of branching fractions between the decay Ξ c+ → pϕ and the singly Cabibbo-suppressed decay Ξ c+ → pK − π + is measured to beℬ(Ξc+→pϕ)ℬ(Ξc+→pK−π...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP04(2019)084

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Publisher:
Springer Publisher's website
Journal:
Journal of High Energy Physics Journal website
Volume:
2019
Issue:
4
Article number:
084
Publication date:
2019-04-10
Acceptance date:
2019-04-07
DOI:
EISSN:
1029-8479
ISSN:
1126-6708
Source identifiers:
994951
Keywords:
Pubs id:
pubs:994951
UUID:
uuid:12947b46-7129-4bf1-bd8d-5b0c8524aa41
Local pid:
pubs:994951
Deposit date:
2019-05-08

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