PHENIICS Doctoral School Days

First Spectroscopy of the R-process Nucleus 110Zr

11 mai 2016, 14:30

1h

Auditorium Pierre Lehmann (Laboratoire de l'Accélérateur Linéaire (LAL))

Panneau: 51

Poster Nuclear Physics Poster session

Orateur

Nancy HUPIN (CEA Saclay)

Description

The structural evolution on the far neutron-rich side of stability is critical for defining the features of the elemental abundance distribution created during the rapid-neutron capture process (r-process). A potentially large shell-gap was historically predicted at N=70 in ${}^{110}$Zr, which could significantly modify the r-process abundances before the A=130 peak. Recent lifetime measurements in the region suggest however that ${}^{110}$Zr is well deformed. We present the first direct data on the structure of this nucleus, spectroscopy of the low-lying 2+ and 4+ states, and will discuss the agreement with the available theoretical predictions.