Systematics of related high-spin isomers in $^{\bf 144}$Sm and other N = 82 nuclei

K. Jessen; M. Bergström; P. von Brentano; A. Dewald; B. Herskind; H. Meise; C. Schumacher; G. Sletten; O. Stuck; D. Weißhaar; I. Wiedenhöver; J. Wrzesinski

doi:doi:10.1007/s100500050098

EPJ

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2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A 2, 113-114

Short note

Systematics of related high-spin isomers in $^{\bf 144}$ Sm and other
N = 82 nuclei

K. Jessen¹ - M. Bergström² - P. von Brentano¹ - A. Dewald¹ - B. Herskind² - H. Meise¹ - C. Schumacher¹ - G. Sletten² - O. Stuck¹ - D. Weißhaar¹ - I. Wiedenhöver¹ - J. Wrzesinski²

¹ Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany
² Niels Bohr Institute, University of Copenhagen, DK-4000 Roskilde, Denmark

Received: 16 November 1997 - Communicated by P. Armbruster

Abstract
An in-beam experiment with the reaction ¹²²Sn(²⁷Al,4np) at 127 MeV was performed at the NORDBALL multi-detector array in Roskilde. It provided evidence for a new high-spin isomer in ¹⁴⁴Sm. This isomer with $T_{1/2} = (2.6 \pm 0.5)$ ns at an excitation energy $E_{\rm x} = 9232$ keV seems to belong to a family of isomers of similar configuration in neighbouring N = 82 nuclei.