Searches for 25 rare and forbidden decays of D + and Ds+ mesons

The Lhcb Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

A search is performed for rare and forbidden charm decays of the form D(s)+→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude. [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number44
JournalJournal of High Energy Physics
Volume2021
Issue number6
DOIs
StatePublished - Jun 2021

Keywords

  • Charm physics
  • Flavour Changing Neutral Currents
  • Flavour physics
  • Hadron-Hadron scattering (experiments)
  • Rare decay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Searches for 25 rare and forbidden decays of D <sup>+</sup> and Ds+ mesons'. Together they form a unique fingerprint.

Cite this