Cargando…
Hyperfine structure measurements of antiprotonic helium and antihydrogen
This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A mea...
| Autores principales: | , , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
Springer
2001
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/3-540-45395-4_36 http://cds.cern.ch/record/486357 |
| _version_ | 1780896951282171904 |
|---|---|
| author | Widmann, Eberhard Eades, John Hayano, Ryugo S. Hori, Masaki Horvath, Dezso Ishikawa, Takashi Juhasz, Bertalan Sakaguchi, Jun Torii, Hiroyuki A. Yamaguchi, Hidetoshi Yamazaki, Toshimitsu |
| author_facet | Widmann, Eberhard Eades, John Hayano, Ryugo S. Hori, Masaki Horvath, Dezso Ishikawa, Takashi Juhasz, Bertalan Sakaguchi, Jun Torii, Hiroyuki A. Yamaguchi, Hidetoshi Yamazaki, Toshimitsu |
| author_sort | Widmann, Eberhard |
| collection | CERN |
| description | This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting. |
| id | cern-486357 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| publisher | Springer |
| record_format | invenio |
| spelling | cern-4863572021-07-15T17:39:50Zdoi:10.1007/3-540-45395-4_36http://cds.cern.ch/record/486357engWidmann, EberhardEades, JohnHayano, Ryugo S.Hori, MasakiHorvath, DezsoIshikawa, TakashiJuhasz, BertalanSakaguchi, JunTorii, Hiroyuki A.Yamaguchi, HidetoshiYamazaki, ToshimitsuHyperfine structure measurements of antiprotonic helium and antihydrogenNuclear Physics - ExperimentThis paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of alpha-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may - through comparison with these theories - determine the magnetic moment of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and a positron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting, which for hydrogen is one of the most accurately measured physical quantities, will directly yield a precise value for the magnetic moment of the antiproton, and also compare the internal structure of proton and antiproton through the contribution of the magnetic size of the antiproton to the ground state hyperfine splitting.This paper describes measurements of the hyperfine structure of two antiprotonic atoms that are planned at the Antiproton Decelerator (AD) at CERN. The first part deals with antiprotonic helium, a three-body system of α-particle, antiproton and electron that was previously studied at LEAR. A measurement will test existing three-body calculations and may— through comparison with these theories— determine the magnetic moment \(\mu _{\overline {\text{p}} } \)of the antiproton more precisely than currently available, thus providing a test of CPT invariance. The second system, antihydrogen, consisting of an antiproton and apositron, is planned to be produced at thermal energies at the AD. A measurement of the ground-state hyperfine splitting \(v_{{\text{HF}}} \left( {\overline {\text{H}} } \right)\), which for hydrogen is one of the most accurately measuredp hysical quantities, will directly yielda precise value for \(\mu _{\overline {\text{p}} } \), andalso compare the internal structure of proton andan tiproton through the contribution of the magnetic size of the \(\overline {\text{p}} {\mathbf{ }}{\text{to}}{\mathbf{ }}\nu _{{\text{HF}}} \left( {\overline {\text{H}} } \right)\).Springernucl-ex/0102002oai:cds.cern.ch:4863572001-02-06 |
| spellingShingle | Nuclear Physics - Experiment Widmann, Eberhard Eades, John Hayano, Ryugo S. Hori, Masaki Horvath, Dezso Ishikawa, Takashi Juhasz, Bertalan Sakaguchi, Jun Torii, Hiroyuki A. Yamaguchi, Hidetoshi Yamazaki, Toshimitsu Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title | Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title_full | Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title_fullStr | Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title_full_unstemmed | Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title_short | Hyperfine structure measurements of antiprotonic helium and antihydrogen |
| title_sort | hyperfine structure measurements of antiprotonic helium and antihydrogen |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1007/3-540-45395-4_36 http://cds.cern.ch/record/486357 |
| work_keys_str_mv | AT widmanneberhard hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT eadesjohn hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT hayanoryugos hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT horimasaki hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT horvathdezso hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT ishikawatakashi hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT juhaszbertalan hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT sakaguchijun hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT toriihiroyukia hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT yamaguchihidetoshi hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen AT yamazakitoshimitsu hyperfinestructuremeasurementsofantiprotonicheliumandantihydrogen |