Shape coexistence in atomic nuclei and its spectroscopic fingerprints

In the present discussion we concentrate on shape coexistence as obtained within a deformed single-particle field as well as starting from the spherical shell-model, incorporating deformation effects via the residual proton-neutron quadrupole interaction. We discuss in particular the appearance of shape coexisting phenomena in the Pb region. In a second part then, we present a number of experimental fingerprints that are able to recognize the appearance of shape coexisting phenomena or of shape mixing through the use of selective experiments (e.g., band structure, spectroscopic factors, static moments, E0 properties and alpha-decay)

Does scaling player size skew one’s ability to correctly evaluate object sizes in a virtual environment?

This paper presents the results of a study performed in order to evaluate whether a navigation technique, based on scaling the user’s avatar, impacts the user’s ability to correctly assess the size of virtual objects in a virtual environment. This study was realized during the CERN Open Days with data from 177 participants over eighteen years old. It allowed us to observe well-established phenomena, such as the impact of gender on susceptibility to motionsickness, as well as original results associated with scaling factor and avatar embodiment. We observed that the user is more prone to overestimate object sizes from the Virtual Environment when provided with an avatar, while scaling the Inter-Pupillary Distance according to the scale of the user contributes to a reduction in the overestimation of object sizes within the Virtual Environment