Universität zu Köln

Beller, J., Pietralla, N., Barea, J., Elvers, M., Endres, J., Fransen, C., Kotila, J., Moeller, O., Richter, A., Rodriguez, T. R., Romig, C., Savran, D., Scheck, M., Schnorrenberger, L., Sonnabend, K., Werner, V., Zilges, A. and Zweidinger, M. (2013). Constraint on 0 nu beta beta Matrix Elements from a Novel Decay Channel of the Scissors Mode: The Case of Gd-154. Phys. Rev. Lett., 111 (17). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

The nucleus Gd-154 is located in a region of the nuclear chart where rapid changes of nuclear deformation occur as a function of particle number. It was investigated using a combination of gamma-ray scattering experiments and a gamma gamma-coincidence study following electron capture decay of Tb-154(m). A novel decay channel from the scissors mode to the first excited 0(+) state was observed. Its transition strength was determined to B(M1; 1(sc)(+) -> 0(2)(+)) = 0.031(4)mu(2)(N). The properties of the scissors mode of Gd-154 imply a much larger matrix element than previously thought for the neutrinoless double-beta decay to the 0(2)(+) state in such a shape-transitional region. Theory indicates an even larger effect for Nd-150.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Beller, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pietralla, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Barea, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Elvers, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Endres, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fransen, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kotila, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Moeller, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Richter, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rodriguez, T. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Romig, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Savran, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheck, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schnorrenberger, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sonnabend, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Werner, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zilges, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zweidinger, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-473879
DOI:	10.1103/PhysRevLett.111.172501
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	111
Number:	17
Date:	2013
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BETA-DECAY; NUCLEI; NEUTRINOS Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47387