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

Aaij, R.
•
Beteta, C. Abellan
•
Ackernley, T.
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June 7, 2021
Journal of High Energy Physics

A search is performed for rare and forbidden charm decays of the form D+-> hl+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 x 10(-8) and 6.4 x 10(-6). In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.

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JHEP06(2021)044.pdf

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http://purl.org/coar/version/c_970fb48d4fbd8a85

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openaccess

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3.88 MB

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