In a new paper published in Physical Review Letters, researchers working at CERN’s ISOLDE facility describe how an upgrade to the ISOLTRAP experiment has allowed them to determine the energy necessary to bring the atomic nucleus of indium-99 from its ground state to a long-lived excited state called an isomer. The result follows an earlier ISOLTRAP measurement of indium-99 in the ground state, offering an even closer look at the nucleus of tin-100—a “doubly magic” nucleus that is a mere proton above indium-99.
Click here for original story, An even closer look at the ‘doubly magic’ tin-100 nucleus
Source: Phys.org