Universität zu Köln

Elder, R., Iwasaki, H., Ash, J., Bazin, D., Bender, P. C., Braunroth, T., Campbell, C. M., Crawford, H. L., Elman, B., Gade, A., Grinder, M., Kobayashi, N., Longfellow, B., Mijatovic, T., Pereira, J., Revel, A., Rhodes, D. and Weisshaar, D. (2021). Lifetime measurements probing collectivity in the ground-state band of Mg-32. Phys. Rev. C, 104 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

The signatures of inversion between normal and intruder configurations of particle-hole excitations across the N = 20 shell gap in the neutron-rich isotope Mg-32 have long been of keen interest. Electromagnetic transition rates in the ground-state band are key quantities that provide insights into collective properties associated with the contributions of the 2p2h and 4p4h intruder configurations. The combination of TRIPLEX, GRETINA, and the S800 spectrograph enables model-independent lifetime measurements to determine electromagnetic transition rates in rare isotopes. The reduced E2 transition rates in Mg-32 between the 2(1)(+) and 0(1)(+) states and between the 4(1)(+) and 2(1)(+) states have been measured, the latter representing the first experimental B(E2) value for this transition. The B(E2) strengths indicate large collectivity and strong contributions from the 2p2h and 4p4h intruder configurations that may change with spin in the ground-state band of Mg-32.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Elder, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Iwasaki, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ash, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bazin, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bender, P. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Braunroth, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Campbell, C. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Crawford, H. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Elman, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gade, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grinder, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kobayashi, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Longfellow, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mijatovic, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pereira, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Revel, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rhodes, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weisshaar, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-596063
DOI:	10.1103/PhysRevC.104.024307
Journal or Publication Title:	Phys. Rev. C
Volume:	104
Number:	2
Date:	2021
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 NUCLEAR-DATA SHEETS; DEFORMATION Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59606