Search for the decay D0 →π0ν ν ¯

BESIII Collaboration, M. Ablikim, M. N. Achasov, N. Kalantar-Nayestanaki, R. Kappert, M. Kavatsyuk, J. Messchendorp, V. Rodin

OnderzoeksoutputAcademicpeer review

6 Citaten (Scopus)
5 Downloads (Pure)

Samenvatting

We present the first experimental search for the rare charm decay D0→π0νν¯. It is based on an e+e- collision sample consisting of 10.6×106 pairs of D0D¯0 mesons collected by the BESIII detector at s=3.773 GeV, corresponding to an integrated luminosity of 2.93 fb-1. A data-driven method is used to ensure the reliability of the background modeling. No significant D0→π0νν¯ signal is observed in data and an upper limit of the branching fraction is set to be 2.1×10-4 at the 90% confidence level. This is the first experimental constraint on charmed-hadron decays into dineutrino final states.
Originele taal-2English
ArtikelnummerL071102
TijdschriftPhysical Review D
Volume105
Nummer van het tijdschrift7
DOI's
StatusPublished - 1-apr.-2022

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