Game-Changing CERN Experiments Offer Physicists Unprecedented New Insights into the Universe's Mysteries

The European Organization for Nuclear Research (CERN) is a leading intergovernmental organization responsible for some of the most significant recent advancements in understanding the fundamental nature of the universe. Based at its headquarters in Switzerland, CERN hosts the Large Hadron Collider (LHC), the world’s largest and most advanced particle physics laboratory. Researchers at CERN are using the LHC to study the smallest building blocks of matter and the forces governing them.

One of the primary focuses of these experiments is to investigate the electroweak mixing angle, also known as the Weinberg angle, which helps physicists describe the relative strength of electromagnetic and weak forces and their combined effect as the electroweak interaction. Recently, an ongoing collaboration between CERN and researchers from the University of Rochester and other global partners made significant strides in measuring the electroweak mixing angle, contributing to a better understanding of the Standard Model of Particle Physics and providing insights into the conditions that existed immediately following the birth of the universe.

Led by experimental particle physicist Arie Bodek, the University of Rochester team used innovative techniques to achieve one of the most precise measurements of the weak mixing angle ever recorded at CERN. These measurements not only support the Standard Model but also greatly reduce systematic uncertainties that had hindered past attempts at accurate measurement.

In addition to this milestone, CERN and its partners have made another breakthrough in demonstrating quantum entanglement in top quarks. Led by professor Regina Demina, also of the University of Rochester, this discovery extends the concept of “spooky action at a distance” to some of the heaviest known particles and sheds new light on high-energy quantum mechanics.

These advancements, facilitated by CERN and its partners, continue to provide physicists with new insights into the inner workings of nature and the cosmos, as well as offer a deeper understanding of matter and energy at their most fundamental levels.

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