Universität zu Köln

Karayonchev, V., Blazhev, A., Jolie, J., Dewald, A., Esmaylzadeh, A., Fransen, C., Haefner, G., Knafla, L., Mueller-Gatermann, C., Rainovski, G., Regis, J. -m., Schomacker, K. and Van Isacker, P. (2022). New aspects of the low-energy structure of( 211)At. Phys. Rev. C, 106 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

Full text not available from this repository.

Abstract

Lifetimes of low-energy states in the semimagic nucleus 211At were measured employing the recoil-distance Doppler shift and the Doppler-shift attenuation methods. The deduced transition probabilities are compared to two shell-model calculations, one using the modified Kuo-Herling interaction in a multi-j model space and the other using a semiempirical interaction for protons confined to the single-j 0h9/2 orbital. The Kuo-Herling calculations overestimates some of the ground-state transition probabilities, possibly due to contributions not included in the calculated ground-state wave function of 211At. A strong underestimation of the E2 strengths involving the 7/2-1 state is also observed. Therefore, a modification of a single two-body matrix element of the Kuo-Herling interaction is introduced which improves the agreement with the experimental data significantly. The calculations in the single-j approximation agree very well with the measured transition probabilities, indicating that seniority can be regarded as a good quantum number in 211At.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Karayonchev, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Blazhev, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Esmaylzadeh, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fransen, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Haefner, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Knafla, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller-Gatermann, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rainovski, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Regis, J. -m. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schomacker, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Van Isacker, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-686922
DOI:	10.1103/PhysRevC.106.044321
Journal or Publication Title:	Phys. Rev. C
Volume:	106
Number:	4
Date:	2022
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9993
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SHELL-MODEL CALCULATIONS; SINGLE-PARTICLE STATES; TRANSITION-PROBABILITIES; MULTIPOLE MOMENTS; NUCLEAR; CONFIGURATION; LIFETIMES; PO-210; DECAY Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68692