antimatter

Don Lincoln video: Is antigravity real

Despite featuring in sci-fi and many UFO reports, Antigravity is an idea that is potentially scientifically reputable, and scientists at CERN are investigating possible connections between antimatter and antigravity. Fermilab’s Dr. Don Lincoln covers both the fact and fiction of this interesting topic.

From Forbes, April 1, 2021: Don Lincoln explains one of the biggest mysteries of modern physics is the question of why we don’t see as much antimatter in the universe as ordinary matter. Scientists working at the CERN laboratory have announced that they have used lasers to slow the motion of antimatter, resulting in unprecedented capabilities to its properties.

Public lecture by Dr. Gerald Gabrielse

Our universe is made of matter. Yet the Big Bang produced essentially equal amounts of matter and antimatter according to our most fundamental understanding of the building blocks of nature. The inability of our fundamental theory to describe this basic feature of our universe is the great frustration of modern physics. In this one-hour lecture, held on Feb. 19, 2021, Dr. Gerald Gabrielse, Northwestern University, gives an introduction to antimatter and matter, explains the theoretical framework that explains particle interactions, and gives examples of attempts to solve the mystery of antimatter.

From Reccom Magazine, Feb. 26, 2021: Chuck Brown of the Fermilab SeaQuest research team is quoted in this piece on the sea of quarks inside the proton. The article discusses Fermilab’s contributions to the SeaQuest and NuSea experiments.

Protons are built from three quarks — two “up” quarks and one “down” quark. But they also contain a roiling sea of transient quarks and antiquarks that fluctuate into existence before swiftly annihilating one another. At the Fermilab-hosted SeaQuest experiment, researchers report that that lopsidedness persists in a realm of previously unexplored quark momenta.

From Forbes, Feb. 10, 2021: Fermilab scientist Don Lincoln explains why there should be equal amounts of matter and antimatter in the universe. There aren’t. He discusses several current theories that try to explain the discrepancy. Better understanding this imbalance is an aim of ongoing experiments, such as DUNE, which is being built at Fermilab.