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Search for the lepton-flavour violating decay D0→e±μ∓
Name
1-s2.0-S0370269316000411-main.pdf
Description
Published version
Size
713.51 KB
Format
Adobe PDF
Checksum (MD5)
85961a77f5c79348adcbd41cb86f7f99
Date Issued
2016
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Citation
Aaij, R., et al. "Search for the Lepton-Flavour Violating Decay D-0 -> E(+/-)Mu(-/+)." Physics Letters B 754 (2016): 167-75.
Version
Final published version
Abstract
© 2016 CERN for the benefit of the LHCb Collaboration. A search for the lepton-flavour violating decay D0→e±μ∓is made with a dataset corresponding to an integrated luminosity of 3.0 fb-1of proton-proton collisions at centre-of-mass energies of 7TeV and 8TeV, collected by the LHCb experiment. Candidate D0mesons are selected using the decay D*+→D0π+and the D0→e±μ∓branching fraction is measured using the decay mode D0→K-π+as a normalization channel. No significant excess of D0→e±μ∓candidates over the expected background is seen, and a limit is set on the branching fraction, B(D0→e±μ∓)<1.3×10-8, at 90% confidence level. This is an order of magnitude lower than the previous limit and it further constrains the parameter space in some leptoquark models and in supersymmetric models with R-parity violation.
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
10.1016/J.PHYSLETB.2016.01.029
