Tag

Gluons

All articles tagged with #gluons

science1 year ago

Scientists Unveil Quantum Entanglement Map in Protons

Scientists at Brookhaven National Laboratory have used quantum information science to map quantum entanglement among quarks and gluons inside protons, revealing a complex, dynamic system. This entanglement, occurring at incredibly short distances, affects the distribution of particles resulting from proton-electron collisions. The research, published in Reports on Progress in Physics, provides new insights into proton structure and lays the groundwork for future experiments at the Electron-Ion Collider, which will explore how nuclear environments impact entanglement.

science1 year ago

New Predictions for Meson Measurements Unveiled by Scientists

Scientists at Brookhaven National Laboratory have used supercomputers to predict the distribution of electric charges in mesons, particles made of a quark and an antiquark. These predictions, validated through a method called factorization, align with low-energy measurements and will guide future high-energy experiments at the upcoming Electron-Ion Collider (EIC). The research aims to deepen understanding of how quarks and gluons generate the mass and structure of hadrons, which are fundamental to visible matter.

science1 year ago

"New Insights into Proton Spin from Combined Theory and Experiment"

A new study combining experimental data and lattice Quantum Chromodynamics (QCD) calculations has provided deeper insights into the contributions of gluons to the proton's spin. This collaborative effort, led by Joseph Karpie at Jefferson Lab, aims to resolve the decades-old mystery of proton spin and paves the way for a three-dimensional understanding of the proton's structure.

science1 year ago

"Unprecedented Discovery: Strongest Magnetic Fields Found in Nuclear Matter"

Scientists at the Relativistic Heavy Ion Collider have discovered the strongest known magnetic fields inside nuclear matter, generated by the electric current induced in quarks and gluons. These fields surpass the strength of those found in neutron stars, previously considered the strongest, and are significantly stronger than Earth's magnetic field.

physics2 years ago

Positive gluon polarization indicated by direct photons.

A new publication by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC) provides definitive evidence that gluon "spins" are aligned in the same direction as the spin of the proton they're in. The result provides theorists with new input for calculating how much gluons contribute to a proton's spin. The new PHENIX result is one of the "golden" measurements proposed as a key motivator for the RHIC spin physics program. It's a comparison of the number of "direct photons" (particles of light) emitted when RHIC collides protons with their spins pointing in opposite directions with the number of direct photons produced when the protons in the two beams are pointing in the same direction.

science2 years ago

Unraveling Mysteries of Nuclear Matter and Forces.

Scientists have resolved a long-standing issue with a theoretical calculation method known as "axial gauge," which had mistakenly suggested two properties of quark-gluon plasma were identical. The study also made a prediction on gluon distribution measurement, set to be tested in future experiments with the Electron-Ion Collider. The ultimate goal is to understand how complex forms of matter emerge from elementary particles affected by strong forces.

science2 years ago

Proton's Mass Radius Shorter Than Charge Radius

Experimental work has created a value for the proton's mass radius, which describes the distribution of mass within the particle. The proton's mass primarily depends on its gluons, which are difficult to detect. By measuring the production of J/ψ mesons, it's possible to determine something called the gluonic gravitational form factors, which describes where the mass sits in the proton. It turns out the value is significantly different from the proton's charge radius.

science2 years ago

Unraveling the Mysteries of Proton Mass and Size Measurements

An experiment at the Thomas Jefferson National Accelerator Facility has revealed the radius of the proton's mass that is generated by the strong force as it glues together the proton's building block quarks. The proton's measured mass doesn't just come from its physical building blocks, its three so-called valence quarks. The experiment may have finally shed some light on the mass that is generated by the proton's gluons by pinpointing the location of the matter generated by these gluons.

science2 years ago

Uncovering the Mystery of Proton Mass and Size through Gluon Experimentation.

Scientists at the Thomas Jefferson National Accelerator Facility have conducted an experiment shedding light on the internal structure of protons, revealing more about how matter is put together at the smallest scale. The experiment involved measuring the movements of tiny fundamental particles called gluons that hold protons together. The researchers discovered that the radius of the proton's mass varied from the radius covering the distribution of its electrical charge, often used as a proxy for a proton's size. The greater radius of electrical charge means the mass of the proton is concentrated, suggesting some of the gluons may extend beyond the mass-bearing quarks, possibly confining them.

physics2 years ago

Unveiling the Mysteries of Proton Structure and Gluon Mass

An experiment conducted at the Thomas Jefferson National Accelerator Facility has revealed the radius of the proton's mass generated by the strong force as it glues together the proton's building block quarks. The result shows that the proton's mass comes from several sources, including the strong force energy that glues quarks together, with this force manifesting as "gluons." The experimenters were able to determine the gluonic mass radius dominated by graviton-like gluons, as well as a larger radius of attractive scalar gluons that extend beyond the moving quarks and confine them.