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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 |
| _version_ | 1780907698867404800 |
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| author | Bertin, A Carboni, G Gorini, G Pitzurra, O Polacco, E Torelli, G Vitale, A Zavattini, E |
| author_facet | Bertin, A Carboni, G Gorini, G Pitzurra, O Polacco, E Torelli, G Vitale, A Zavattini, E |
| author_sort | Bertin, A |
| collection | CERN |
| description | 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 effect, =(3.5+or-0.5)*10/sup -2/ and is insignificantly pressure dependent. tau /sub 2S/=(1.43+or-0.15) mu sec. X-rays from a 2S level two-photon decay and the delayed muon decay electron were observed. (7 refs). |
| id | cern-873627 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1974 |
| record_format | invenio |
| spelling | cern-8736272019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.33.253http://cds.cern.ch/record/873627engBertin, ACarboni, GGorini, GPitzurra, OPolacco, ETorelli, GVitale, AZavattini, EMeasurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atmOther Fields of PhysicsNuclear PhysicsThe 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 effect, =(3.5+or-0.5)*10/sup -2/ and is insignificantly pressure dependent. tau /sub 2S/=(1.43+or-0.15) mu sec. X-rays from a 2S level two-photon decay and the delayed muon decay electron were observed. (7 refs).oai:cds.cern.ch:8736271974 |
| spellingShingle | Other Fields of Physics Nuclear Physics Bertin, A Carboni, G Gorini, G Pitzurra, O Polacco, E Torelli, G Vitale, A Zavattini, E Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title | Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title_full | Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title_fullStr | Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title_full_unstemmed | Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title_short | Measurement of the initial population and decay rate of the ($\mu ^{4}He)_{2S}^{+}$ system in a helium target at 50 atm |
| title_sort | measurement of the initial population and decay rate of the ($\mu ^{4}he)_{2s}^{+}$ system in a helium target at 50 atm |
| topic | Other Fields of Physics Nuclear Physics |
| url | https://dx.doi.org/10.1103/PhysRevLett.33.253 http://cds.cern.ch/record/873627 |
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