Universität zu Köln

Heery, J., Barber, L., Vilhena, J., Singh, B. S. Nara, Herzberg, R. -D., Cullen, D. M., Mueller-Gatermann, C., Beeton, G., Bowry, M., Dewald, A., Grahn, T., Greenlees, P. T., Illana, A., Julin, R., Juutinen, S., Keatings, J. M., Leino, M., Luoma, M., O'Donnell, D., Ojala, J., Pakarinen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Sinclair, J., Smith, J. F., Sorri, J., Spagnoletti, P., Tann, H., Uusitalo, J. and Zimba, G. (2021). Lifetime measurements of yrast states in Pt-178 using the charge plunger method with a recoil separator. Eur. Phys. J. A, 57 (4). NEW YORK: SPRINGER. ISSN 1434-601X

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Abstract

Lifetime measurements in Pt-178 with excited states de-exciting through gamma-ray transitions and internal electron conversions have been performed. Ionic charges were selected by the in-flight mass separatorMARAand measured at the focal plane in coincidence with the 4(1)(+) -> 2(1)(+) 257 keV gamma-ray transition detected using the JUROGAM 3 spectrometer. The resulting charge-state distributions were analysed using the differential decay curve method (DDCM) framework to obtain a lifetime value of 430(20) ps for the 2(1)(+) state. This work builds on a method that combines the charge plunger technique with the DDCM analysis. As an alternative analysis, ions were selected in coincidence with the Pt-178 alpha decay (E-alpha = 5.458(5) MeV) at the focal plane. Lifetime informationwas obtained by fitting a two-state Bateman equation to the decay curve with the lifetime of individual states defined by a single quadrupolemoment. This yielded a lifetime value of 430(50) ps for the 2(1)(+) state, and 54(6) ps for the 4(1)(+) state. An analysis method based around the Bateman equation will become especially important when using the charge plunger method for the cases where utilising coincidences between prompt gamma rays and recoils is not feasible.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Heery, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Barber, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vilhena, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Singh, B. S. Nara UNSPECIFIED UNSPECIFIED UNSPECIFIED Herzberg, R. -D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cullen, D. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller-Gatermann, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beeton, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bowry, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grahn, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenlees, P. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Illana, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Julin, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Juutinen, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Keatings, J. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Leino, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Luoma, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED O'Donnell, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ojala, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pakarinen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rahkila, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruotsalainen, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sandzelius, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saren, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sinclair, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Smith, J. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sorri, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Spagnoletti, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tann, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Uusitalo, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zimba, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-599684
DOI:	10.1140/epja/s10050-021-00425-8
Journal or Publication Title:	Eur. Phys. J. A
Volume:	57
Number:	4
Date:	2021
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1434-601X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Physics, Nuclear; Physics, Particles & Fields Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59968