Observation of D^+ to eta e^+ nu_e

CLEO Collaboration; R. E. Mitchell

doi:10.1103/PhysRevLett.102.081801

Observation of D^+ to eta e^+ nu_e

High Energy Physics - Experiment 2010-04-08 v2

Authors: CLEO Collaboration , R. E. Mitchell

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Abstract

Using a 281 pb^-1 data sample collected at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D^+ to eta e^+ nu_e. We also set upper limits for D^+ to eta' e^+ nu_e and D^+ to phi e^+ nu_e that are about two orders of magnitude more restrictive than those obtained by previous experiments.

Keywords

electron-positron annihilation cross sections precision measurements in physics

Cite

@article{arxiv.0802.4222,
  title  = {Observation of D^+ to eta e^+ nu_e},
  author = {CLEO Collaboration and R. E. Mitchell},
  journal= {arXiv preprint arXiv:0802.4222},
  year   = {2010}
}