A search for one mysterious particle unexpectedly revealed evidence for two different structures that may belong to the ...
New results from the STAR detector at the Relativistic Heavy Ion Collider (RHIC) suggest that gluons, the glue-like particles that hold quarks together inside protons, play a central role in the ...
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A gluon junction may explain where a proton’s baryon number comes from
A proton looks so simple, made of three quarks held together by gluons. However, ...
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Physicists have been chasing a mysterious particle for 50 years—and they may have just found it
X(2370) has long been a leading candidate for a “glueball”—a hypothetical particle made almost entirely of gluons.
High-energy nuclear collisions recreate extreme conditions similar to those in the early universe, producing quark–gluon ...
Deep inside atomic nuclei, gluons bind quarks together and help determine the structure of visible matter. A CERN study, with a University of Kansas physicist playing a leading role, has now shown ...
Combinations of three quarks (RGB) or three antiquarks (CMY) are colorless, as are appropriate combinations of quark/antiquark pairs. The gluon exchanges that keep these entities stable are quite ...
"These results confirm our suspicion that a lot of the gluons' contribution to proton spin comes from the gluons with relatively low momentum," said Ralf Seidl, a physicist from the RIKEN-BNL Research ...
The PHENIX detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider records many different particles emerging from RHIC collisions, including photons, electrons, muons, and ...
The three valence quarks of a proton contribute to its spin, but so do the gluons, sea quarks and antiquarks, and orbital angular momentum as well. The electrostatic repulsion and the attractive ...
An unusual alliance between physicists who study ultrahot plasmas and ultracold atoms is yielding intriguing results – and may even lead to an experimental test for string theory, as Barbara Jacak ...
The discovery of the Higgs boson was rightfully heralded as a triumph of particle physics, one that brought completion to the Standard Model, the collection of theories that describes particles and ...
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