![]() ![]() ![]() The second are the gravitational form factors of the proton. ![]() GPDs allow researchers to produce a 3D image of the proton’s structure as probed by the electromagnetic force. Once thought impossible to obtain, this measurement is the result of a clever pairing of two theoretical frameworks with existing data.įirst, there are the generalized parton distributions. This opens up an entirely new direction in nuclear and particle physics that can be explored in the future.” “We are providing a way of visualizing the magnitude and distribution of the strong force inside the proton. “Our results also shed light on the distribution of the strong force inside the proton,” he said. ![]() “We found an extremely high outward-directed pressure from the center of the proton, and a much lower and more extended inward-directed pressure near the proton’s periphery,” explains Volker Burkert, Jefferson Lab Hall B Leader and a co-author on the paper.īurkert says that the distribution of pressure inside the proton is dictated by the strong force, the force that binds three quarks together to make a proton. The result was recently published in the journal Nature. The nuclear physicists found that the proton’s building blocks, the quarks, are subjected to a pressure of 100 decillion Pascal (10 35) near the center of a proton, which is about 10 times greater than the pressure in the heart of a neutron star. That’s according to the first measurement of a mechanical property of subatomic particles, the pressure distribution inside the proton, which was carried out by scientists at the Department of Energy's Thomas Jefferson National Accelerator Facility. NEWPORT NEWS, VA – Inside every proton in every atom in the universe is a pressure cooker environment that surpasses the atom-crushing heart of a neutron star. The first measurement of a subatomic particle’s mechanical property reveals the distribution of pressure inside the proton. ![]()
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