Related Experiment Video
Updated: Jun 25, 2026

Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
Published on: December 12, 2013
Observation of D+ --> etae + nue.
R E Mitchell1, M R Shepherd, D Besson
1Indiana University, Bloomington, Indiana 47405, USA.
Researchers observed the decay of a D+ meson into eta and a neutrino. New upper limits were set for related decays, improving upon previous experimental results.
Area of Science:
- Particle Physics
- High Energy Physics
- Experimental Physics
Background:
- The study of D+ meson decays provides insights into fundamental particle interactions.
- Understanding these decays is crucial for testing the Standard Model of particle physics.
Purpose of the Study:
- To report the first observation of the decay D+ --> etae + nue.
- To establish more restrictive upper limits for the decays D+ --> eta'e + nue and D+ --> varphie + nue.
Main Methods:
- Data collected at the psi(3770) resonance using the CLEO-c detector at the Cornell Electron Storage Ring.
- Analysis of a 281 pb-1 data sample.
Main Results:
- First observation of the decay D+ --> etae + nue.
- Set upper limits for D+ --> eta'e + nue and D+ --> varphie + nue decays, significantly more restrictive than previous experiments.
Conclusions:
- The observed decay provides new data for the study of D+ meson properties.
- The improved upper limits place tighter constraints on potential new physics beyond the Standard Model.
More Related Videos
08:52Improving Reproducibility to Meet Minimal Information for Studies of Extracellular Vesicles 2018 Guidelines in Nanoparticle Tracking Analysis
Published on: November 17, 2021
15:00Daily Transfers, Archiving Populations, and Measuring Fitness in the Long-Term Evolution Experiment with Escherichia coli
Published on: August 18, 2023
Related Concept Videos
Naturalistic Observations
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Lab
Atomic Emission Spectroscopy: Instrumentation
Nuclear Overhauser Enhancement (NOE)
EDTA: Conditional Formation Constant
For the equilibrium reaction of the metal with the Y4− form of EDTA, the formation...