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
Unknown
Checksum (MD5)
85961a77f5c79348adcbd41cb86f7f99
Author(s)
The LHCb Collaboration
Ilten, Philip J
Williams, Michael
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.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2016.01.029
