With the Cosmic Origins Spectrograph on Hubble, we are conducting UV spectroscopic studies of missing baryons in the intergalactic medium, quasar ionizing spectra, mass estimates of super-massive ...

They found that normal matter (made of familiar particles like protons and neutrons, collectively called baryons) makes up about 4 to 5 percent of the cosmos’ total energy density. (The ...

It remains to be seen in other meson decays and in decays of other types of particles, such as three-quark particles called baryons. In two new articles posted to the arXiv preprint server ...