Physicists Collaborate to Decode Unstable Sigma Meson

Researchers at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility have used supercomputers to better understand the unstable sigma meson particle, which plays a crucial role in nuclear physics. By simulating pion-pion reactions based on quantum chromodynamics, they have made significant progress in describing the sigma meson, despite its brief existence and complex nature. This collaborative effort, involving advanced computational techniques, paves the way for further studies of similar particles and deeper insights into the strong interaction.