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Dr. Rakitha Beminiwattha, Assistant Professor of Physics at Louisiana Tech University, and Louisiana Tech Physics doctoral students Yufan Chen and Devaki Bhatta Pathak (who graduated in Winter Quarter 2020), were among a team of international researchers who have helped to measure the neutron distribution in a heavy nucleus, specifically, that of lead, and published the most precise measurement to date of the neutron distribution from the Lead (Pb) Radius Experiment (PREX) at the Thomas Jefferson National Accelerator Facility in Virginia. Working with experts from 32 prestigious institutions ...

Neutron stars may be bigger than expected, measurement of lead nucleus suggests Apr. 27, 2021 , 11:00 AM Say what you want about lead, it’s got a surprisingly thick skin—of neutrons, that is. In fact, the layer of neutrons on the outside of a lead nucleus is twice as thick as physicists thought, according to a new study. The seemingly abstruse result could have out-of-this-world implications: Neutron stars, the ultradense spheres left behind when stars explode in supernova explosions, could be stiffer and bigger than theory generally predicts. “It’s a fantastic experimental achievemen...