氘核及其反物质粒子形成之谜被揭示

Core Insights - Scientists from the Technical University of Munich and other institutions have revealed the formation secrets of deuterons and their antimatter particles using the Large Hadron Collider (LHC) [1][2] - The research indicates that these fragile atomic nuclei did not originate from the chaotic state of the Big Bang but rather from the decay of "short-lived" high-energy particles within a cooling "fireball" [1][2] - This advancement marks a significant step towards a deeper understanding of the strong nuclear force [1][3] Group 1 - The strong nuclear force is one of the four fundamental forces of nature, responsible for binding protons and neutrons within atomic nuclei [2] - At the LHC, protons collide at nearly the speed of light, recreating extreme conditions similar to those shortly after the Big Bang, allowing scientists to explore the essence of matter at a microscopic level [2] - The latest research from the ALICE experiment at the LHC discovered that the decay of extremely short-lived high-energy particles releases protons and neutrons necessary for forming deuterons [2] Group 2 - Approximately 90% of the observed (anti)deuterons originate from this newly discovered process rather than surviving from the initial moments of the Big Bang [2] - The ALICE experiment functions like a giant camera, capable of tracking and reconstructing up to 2000 particles produced in a single collision, enabling scientists to recreate early cosmic conditions [2] - This discovery has profound implications for fundamental nuclear physics research, enhancing the understanding of the strong nuclear force and expanding the horizons of cosmological studies [3]