SMuK 2023 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Structure and Dynamics of Nuclei VII

HK 41.5: Talk

Wednesday, March 22, 2023, 17:00–17:15, SCH/A118

Evolution of the first mixed-symmetry 2⁺ state in the N=80 isotones — •T Stetz¹, R Zidarova¹, R Kern¹, V Werner¹, N Pietralla¹, T Abraham², U Ahmed¹, G Colucci², K Hadyńska-Klek², K E Ide², G Jaworski², M Kisieliński², M Komorowska², M Kowalczyk¹, M Liliana Cortes², P Napiorkowski¹, C Nickel², M Palacz³, G Rainovski², J Samorajczyk-Pyśk², J Srebrny³, M Stoyanova², A Trzcińska², K Wrzosek-Lipska², and B Zalewski¹ — ¹TU Darmstadt — ²HIL Warsaw — ³U Sofia

The evolution of the first mixed-symmetry 2⁺ state in the N=80 isotones from ¹³²Te to ¹⁴²Sm has been of great interest for the past two decades [1,2,3,4,5]. A recent CoulEx experiment to investigate the M1 strength of the 2_ms,1⁺ → 2₁⁺ transition of ¹⁴²Sm has been performed at HIE-ISOLDE [6]. A complementary experiment to determine the multipole mixing ratio of the aforementioned transition was conducted at the HIL in Warsaw in 2021. Combined, these experiments will expand the understanding of the first mixed-symmetry 2⁺ state in this isotonic chain.

[1] M. Danchev et al., Phys. Rev. C 84 (2011) 061306(R)

[2] T. Ahn et al., Phys. Lett. B 679 (2009) 1

[3] N. Pietralla et al., Phys. Rev. C 58 (1998) 796

[4] G. Rainovski et al., Phys. Rev. Lett. 96 (2006) 122501

[5] R. Kern et al., Phys. Rev. C 102 (2020) 041304(R)

[6] R. Kern et al., J. Phys.: Conf. Ser. 1555 (2020) 012027

*Supported by BMBF 05P18RDCIA-TP1 and 05P21RDCI2-TP1