Universität zu Köln

Romig, C., Beller, J., Glorius, J., Isaak, J., Kelley, J. H., Kwan, E., Pietralla, N., Ponomarev, V. Yu, Sauerwein, A., Savran, D., Scheck, M., Schnorrenberger, L., Sonnabend, K., Tonchev, A. P., Tornow, W., Weller, H. R., Zilges, A. and Zweidinger, M. (2013). Low-lying dipole strength of the open-shell nucleus Mo-94. Phys. Rev. C, 88 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

Full text not available from this repository.

Abstract

The low-lying dipole strength of the open-shell nucleus Mo-94 was studied via the nuclear resonance fluorescence technique up to 8.7 MeV excitation energy at the bremsstrahlung facility at the Superconducting Darmstadt Electron Linear Accelerator (S-DALINAC), and with Compton backscattered photons at the High Intensity. gamma-ray Source (HI gamma S) facility. In total, 83 excited states were identified. Exploiting polarized quasi-monoenergetic photons at HI gamma S, parity quantum numbers were assigned to 41 states excited by dipole transitions. The electric dipole-strength distribution was determined up to 8.7 MeV and compared to microscopic calculations within the quasiparticle phonon model. Calculations and experimental data are in good agreement for the fragmentation, as well as for the integrated strength. The average decay pattern of the excited states was investigated exploiting the HI gamma S measurements at five energy settings. Mean branching ratios to the ground state and first excited 2(1)(+) state were extracted from the measurements with quasi-monoenergetic photons and compared to. gamma-cascade simulations within the statistical model. The experimentally deduced mean branching ratios exhibit a resonance-like maximum at 6.4 MeV which cannot be reproduced within the statistical model. This indicates a nonstatistical structure in the energy range between 5.5 and 7.5 MeV.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Romig, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beller, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Glorius, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Isaak, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kelley, J. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kwan, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pietralla, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ponomarev, V. Yu UNSPECIFIED UNSPECIFIED UNSPECIFIED Sauerwein, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Savran, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheck, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schnorrenberger, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sonnabend, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tonchev, A. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tornow, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weller, H. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zilges, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zweidinger, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-473801
DOI:	10.1103/PhysRevC.88.044331
Journal or Publication Title:	Phys. Rev. C
Volume:	88
Number:	4
Date:	2013
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1089-490X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SEGMENTED HPGE-DETECTOR; BOUND-STATES; RESONANCE; MODES; EXCITATIONS; SIMULATION Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47380