Deeply bound 1s and 2p states in pionic atoms
Creators
- 1. Rijksuniversiteit Utrecht (Netherlands). Fysisch Lab.
- 2. Nationaal Inst. voor Kernfysica en Hoge-Energiefysica (NIKHEF), Amsterdam (Netherlands). Sectie K
- 3. Bonn Univ. (Germany, F.R.). Inst. fuer Strahlen- und Kernphysik
- 4. Amsterdam Univ. (Netherlands). Inst. voor Theoretische Fysica
- 5. Zurich Univ. (Switzerland). Inst. fuer Physik
Description
New results were obtained on pionic 1s levels in 24Mg, 27Al and 28Si, on 2p states in 93Nb and natRu, as well as on 3d states in 93Nb, natRu, natAg and natCd. For the first time the predicted repulsive shifts for the pionic 2p level have been observed. The following values were obtained for the strong-interaction shifts and widths (all values in keV); 24Mg: ε01s=-80.5±0.6 and Γ01s=24.3±1.6; 27Al: ε01s=-115.5±1.4 and Γ01s=28.8±1.2, 28Si: ε01s=-131.6±2.0 and Γ01s=41±4; 93Nb: ε02p=-11±3, Γ02p=64±8, ε03d=0.74±0.02 and Γ03d=0.402±0.016; natRu: ε02p=-48±7, Γ02p=77±24, ε03d=1.39±0.08 and Γ03d=0.75±0.08; natAg: ε03d=1.94±0.07 and Γ03d=1.44±0.05 and natCd: ε03d=2.14±0.09 and Γ03d=1.65±0.07. The results are in resonable agreement with the predictions of the standard optical potentials. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics, A
- Journal Volume
- 511
- Journal Issue
- 3/4
- Series
- Nucl. Phys., A.
- Journal Page Range
- 573-591
- ISSN
- 0375-9474
- CODEN
- NUPAB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21060095
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ALUMINIUM; ALUMINIUM 27; BOUND STATE; CADMIUM; D STATES; DE-EXCITATION; ENERGY SPECTRA; EXPERIMENTAL DATA; E1-TRANSITIONS; F STATES; LEVEL WIDTHS; MAGNESIUM; MAGNESIUM 24; NIOBIUM; NIOBIUM 93; P STATES; PIONIC ATOMS; RUTHENIUM; S STATES; SILICON; SILICON 28; SILVER; SPECTRAL SHIFT; X-RAY SPECTRA
- Descriptors DEC
- ALKALINE EARTH METALS; ALUMINIUM ISOTOPES; ATOMS; DATA; ELEMENTS; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; HADRONIC ATOMS; INFORMATION; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MAGNESIUM ISOTOPES; MESIC ATOMS; METALS; MULTIPOLE TRANSITIONS; NIOBIUM ISOTOPES; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; PLATINUM METALS; RADIOISOTOPES; SEMIMETALS; SILICON ISOTOPES; SPECTRA; STABLE ISOTOPES; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES
Optional Information
- Contract/Grant/Project number
- Contract BMFT 06 BN 271