Particle Physics
Physicists measure trillion-degree heat in Big Bang plasma
Researchers at Rice University have captured the temperature profile of quark-gluon plasma, the ultra-hot matter from the universe's dawn. By analyzing electron-positron emissions from atomic collisions, they determined precise temperatures at different evolutionary stages. The findings, published in Nature Communications, refine understanding of early cosmic conditions.
MIT physicists devise molecular technique to probe atomic nuclei
Physicists at MIT have developed a new method using molecules to investigate the interior of atomic nuclei, employing electrons as messengers in a tabletop setup. By studying radium monofluoride, they detected subtle energy shifts indicating electron interactions inside the nucleus. This approach could help explain the universe's matter-antimatter imbalance.
Physicists narrow down strong nuclear force critical point
Researchers have made progress in identifying a critical point where the strong nuclear force weakens, allowing quarks and gluons to form a hot plasma. By analyzing collisions at a New York particle accelerator, scientists have narrowed the possible location of this point on a phase diagram. This finding could reveal insights into the early universe and neutron stars.
Scientists develop new method for dark matter detection
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Researchers have announced a breakthrough in detecting elusive dark matter particles using advanced collider technology. The discovery, detailed in a recent Nature publication, could reshape our understanding of cosmic composition. Led by a team at CERN, the method promises more precise measurements than previous attempts.