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Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm
The fraction ( epsilon /sub 25/) of negative muons captured by the 2S level of He atoms and the lifetime tau /sub 2S/ of the muons at this level has been observed with pure helium gas at 50 'atm' and 293K. epsilon /sub 2S/, with no Stark effect, =(4.3+or-0.6)*10/sup -2/, for max. Stark eff...
| Autores principales: | , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1974
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.33.253 http://cds.cern.ch/record/873627 |