Cargando…
Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass
A radio frequency quadrupole decelerator and achromatic momentum analyzer were used to decelerate antiprotons and produce p/sup 4/He /sup +/ and p/sup 3/He/sup +/ atoms in ultra-low- density targets, where collision-induced shifts of the atomic transition frequencies were negligible. The frequencies...
| Autores principales: | , , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2003
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.91.123401 http://cds.cern.ch/record/726041 |
| _version_ | 1780903739504197632 |
|---|---|
| author | Hori, Masaki Eades, John Hayano, R S Horváth, D Ishikawa, T Juhász, B Pirkl, Werner Torii, H A Widmann, E Yamaguchi, H Yamazaki, T |
| author_facet | Hori, Masaki Eades, John Hayano, R S Horváth, D Ishikawa, T Juhász, B Pirkl, Werner Torii, H A Widmann, E Yamaguchi, H Yamazaki, T |
| author_sort | Hori, Masaki |
| collection | CERN |
| description | A radio frequency quadrupole decelerator and achromatic momentum analyzer were used to decelerate antiprotons and produce p/sup 4/He /sup +/ and p/sup 3/He/sup +/ atoms in ultra-low- density targets, where collision-induced shifts of the atomic transition frequencies were negligible. The frequencies at near-vacuo conditions were measured by laser spectroscopy to fractional precisions of (6-19)*10 /sup -8/. By comparing these with QED calculations and the antiproton cyclotron frequency, we set a new limit of 1*10/sup -8/ on possible differences between the antiproton and proton charges and masses. (18 refs). |
| id | cern-726041 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2003 |
| record_format | invenio |
| spelling | cern-7260412019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.91.123401http://cds.cern.ch/record/726041engHori, MasakiEades, JohnHayano, R SHorváth, DIshikawa, TJuhász, BPirkl, WernerTorii, H AWidmann, EYamaguchi, HYamazaki, TDirect measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and massOther Fields of PhysicsA radio frequency quadrupole decelerator and achromatic momentum analyzer were used to decelerate antiprotons and produce p/sup 4/He /sup +/ and p/sup 3/He/sup +/ atoms in ultra-low- density targets, where collision-induced shifts of the atomic transition frequencies were negligible. The frequencies at near-vacuo conditions were measured by laser spectroscopy to fractional precisions of (6-19)*10 /sup -8/. By comparing these with QED calculations and the antiproton cyclotron frequency, we set a new limit of 1*10/sup -8/ on possible differences between the antiproton and proton charges and masses. (18 refs).oai:cds.cern.ch:7260412003 |
| spellingShingle | Other Fields of Physics Hori, Masaki Eades, John Hayano, R S Horváth, D Ishikawa, T Juhász, B Pirkl, Werner Torii, H A Widmann, E Yamaguchi, H Yamazaki, T Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title | Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title_full | Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title_fullStr | Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title_full_unstemmed | Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title_short | Direct measurement of transition frequencies in isolated $\overline{p}He^{+}$ atoms, and new CPT-violation limits on the antiproton charge and mass |
| title_sort | direct measurement of transition frequencies in isolated $\overline{p}he^{+}$ atoms, and new cpt-violation limits on the antiproton charge and mass |
| topic | Other Fields of Physics |
| url | https://dx.doi.org/10.1103/PhysRevLett.91.123401 http://cds.cern.ch/record/726041 |
| work_keys_str_mv | AT horimasaki directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT eadesjohn directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT hayanors directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT horvathd directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT ishikawat directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT juhaszb directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT pirklwerner directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT toriiha directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT widmanne directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT yamaguchih directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass AT yamazakit directmeasurementoftransitionfrequenciesinisolatedoverlinepheatomsandnewcptviolationlimitsontheantiprotonchargeandmass |