INTERPLAY BETWEEN MAGNETIC AND ELECTRIC EXCITATIONS FOR BACKWARD ELECTRON-SCATTERING

Authors
NOJAROV R FAESSLER A DINGFELDER M
Citation
R. Nojarov et al., INTERPLAY BETWEEN MAGNETIC AND ELECTRIC EXCITATIONS FOR BACKWARD ELECTRON-SCATTERING, Journal of physics. G, Nuclear and particle physics, 20(10), 1994, pp. 120000111-120000115
Citations number
17
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
Journal title
Journal of physics. G, Nuclear and particle physics → ACNP
ISSN journal
09543899
Volume
20
Issue
10
Year of publication
1994
Pages
120000111 - 120000115
Database
ISI
SICI code
0954-3899(1994)20:10<120000111:IBMAEE>2.0.ZU;2-E
Abstract
It is found that the Ml (e,e') cross sections of low-lying orbital I(p i) K = 1+1 excitations in heavy deformed nuclei contain E2 admixtures from the (predominantly longitudinal) excitation of the accompanying 2 +1 states. This happens even for backward scattering angles as large a s theta = 165-degrees, where the E2 excitation is strongly quenched. F or small momentum transfer q the E2 cross section is negligible; howev er, it provides significant corrections to the theoretical M1 cross se ction for 0.4 < q < 0.6 fm-1 and substantially improves the agreement with experiment in heavy deformed nuclei.