Study of electric monopole transitions between the ground state and the first excited 0+ state in 40, 42, 44, 48Ca with high resolution inelastic electron scattering |
| |
| Authors: | H.D. Gräf H. Feldmeier P. Manakos A. Richter E. Spamer D. Strottman |
| |
| Affiliation: | 1. Institut für Kernphysik, Technische Hochschute Darmstadt, 6100 Darmstadt, Germany;2. Institut für Kernphysik, Technische Hochschute Darmstadt, 6100 Darmstadt, Germany;3. Institut für Kernphysik, Technische Hochschute Darmstadt, 6100 Darmstadt, Germany;4. Institut für Kernphysik, Technische Hochschute Darmstadt, 6100 Darmstadt, Germany;5. Institut für Kernphysik, Technische Hochschute Darmstadt, 6100 Darmstadt, Germany;6. Physics Department, Stale University of New York, Stony Brook, New York 11794 USA |
| |
| Abstract: | Monopole transitions from the 01+ ground states to 02+ excited states at 3.353 MeV (40Ca), 1.837 MeV (42Ca), 1.884 MeV (44Ca) and 4.272 MeV (48Ca) have been investigated with high resolution inelastic electron scattering (FWHM ≈ 30 keV) at low momentum transfer (0.29 ≦ q ≦ 0.53 fm?1). The respective monopole matrix elements are 2.53 ± 0.41 fm2, 5.24 ± 0.39 fm2, 5.45 ± 0.41 fm2 and 2.28 ± 0.49 fm2. These results are used together with known ground state charge radii and the average number of holes in the sd shell in the ground state to estimate the number of particle-hole excitations in the wave functions of the excited 0+ states. |
| |
| Keywords: | Nuclear reactions |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
