4th Pre-PAC Workshop for AGATA@LNL

Highly deformed bands in europium isotopes and identification of new isotopes

3 Oct 2023, 12:20

20m

INFN-LNL

LoI 3

Speaker

Dr Conor Sullivan (University of Liverpool)

Description

In this letter of intent, we set out a case to search for excited states in the isotopes, ${}^{135}$Eu, ${}^{136}$Eu, ${}^{137}$Eu, ${}^{138}$Eu and ${}^{139}$Eu. Information on excited states for most of these nuclides is relatively sparse, presenting a fertile ground for discovery in a region exhibiting isomerism, shape coexistence, and superdeformation. This experiment aims to elucidate and characterise excited states built upon low-lying Nilsson bandheads, with a particular focus on the evolution of their relative excitation energy as a function of neutron number.

We request 12 days of beam time plus 1 day of setup and calibration to carry out a search for the excited states of the nuclides ${}^{135-139}$Eu, using the AGATA array coupled to the $4\pi$ EUCLIDES charged particle spectrometer for efficient veto of non-alpha evaporation channels and the PRISMA magnetic spectrometer for unambiguous identification of the recoils.