Searches for 25 rare and forbidden decays of <i>D</i><SUP>+</SUP> and Ds+ mesons



Aaij, R, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S
et al (show 997 more authors) (2021) Searches for 25 rare and forbidden decays of <i>D</i><SUP>+</SUP> and Ds+ mesons. JOURNAL OF HIGH ENERGY PHYSICS, 2021 (6). 44-.

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Abstract

A search is performed for rare and forbidden charm decays of the form $D_{(s)}^+ \to h^\pm \ell^+ \ell^{(\prime)\mp}$, where $h^\pm$ is a pion or kaon and $\ell^{(')\pm}$ is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of $1.6\text{fb}^{-1}$, 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 $1.4\times10^{-8}$ and $6.4\times10^{-6}$. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2020-007.html (LHCb public pages)
Uncontrolled Keywords: Charm physics, Flavour physics, Flavour Changing Neutral Currents, Hadron-Hadron scattering (experiments), Rare decay
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 02 Sep 2021 08:50
Last Modified: 14 Mar 2024 23:01
DOI: 10.1007/JHEP06(2021)044
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3134990