Repository logo
 

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

Published version
Peer-reviewed

Change log

Authors

Aaij, R. 
Abellán Beteta, C. 
Ackernley, T. 
Adeva, B. 
Adinolfi, M. 

Abstract

Abstract: A search is performed for rare and forbidden charm decays of the form Ds+→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.

Description

Keywords

Regular Article - Experimental Physics, Charm physics, Flavour physics, Flavour Changing Neutral Currents, Hadron-Hadron scattering (experiments), Rare decay

Journal Title

Journal of High Energy Physics

Conference Name

Journal ISSN

1029-8479

Volume Title

2021

Publisher

Springer Berlin Heidelberg