New Proton Emitter 188At Implies an Interaction Unprecedented in Heavy Nuclei

New proton emitter 188At implies an interaction unprecedented in heavy nuclei

We report the discovery of a new atomic nucleus 188At, which is the heaviest proton-emitting isotope known to date. The new activity was observed through the 107Ag(84Sr, 3n)188At fusion-evaporation reaction using the focal-plane spectrometer of the gas-filled recoil separator in the Accelerator Laboratory of the University of Jyväskylä, Finland. To fully interpret the experimental data, we have expanded the non-adiabatic quasiparticle model to t…

IIT Roorkee plays a vital role in the detection of the heaviest proton emitter astatine-188

The role of the IIT Roorkee team led by Prof. Arumugam was in ascertaining the proton emission through theoretical calculations