Baryons

The Bullet cluster result, building on earlier measurements, adds a crucial discriminating data point to the already overwhelming evidence that the universe contains matter of a type other than that which we see forming galaxies, stars, planets and us (called baryons). ❋ Mark (2006)

It has made major contributions to physics, including the discovery and precise measurement in 1995 of an essential building block of matter called the top quark, and the discoveries of five subatomic particles known as baryons and another called the tau neutrino. ❋ Unknown (2011)

The protons and neutrons of ordinary matter are referred to as baryons in particle physics and cosmology. ❋ Unknown (2010)

Thus the origin of dark matter is totally unrelated to that of baryons, which is in itself a mystery. ❋ Unknown (2010)

There are 2 bound quark states - those with 3 quarks called baryons and those with 2 quarks called mesons. both protons and electrons are hadrons. according to the current understanding in the particle physics community, a hadron is simply a bound state of quarks. quarks make both protons and electrons (and neutrons for that matter). en Español ❋ Unknown (2008)

A “thing” made up of particles (i think they’re called baryons or Bosons or something) OK. ❋ Sean (2007)

In fact, whilst it is claimed by cosmologists that temperature fluctuations more than a few degrees across are the imprint of fluctuations present at the end of the inflationary period, fluctuations smaller than a degree are believed to be the result of acoustic oscillations in the plasma of baryons, electrons and photons present between the end of inflation and the time of recombination. ❋ Gordon McCabe (2009)

"As the nucleon mass is nearly 2000 times the mass of an electron, then all atoms and molecules contain at least as many nucleons as electrons, baryons account for more than 99.5% of the total mass of all the chemical elements observed in the Universe." ❋ Unknown (2010)

No, the mass of the Milky Way which is comprised of baryons is well-understood and well-constrained. ❋ Unknown (2010)

Is Dark Matter like ordinary matter baryons and crunches together or is it like neutrinos and ignores matter altogether? ❋ Unknown (2010)

The best eye-candy from the team's six papers are the stacked temperature and polarization maps for hot and cold spots; if these spots are due to sound waves in matter frozen in when radiation (photons) and baryons parted company – the cosmic microwave background (CMB) encodes all the details of this separation – then there should be nicely circular rings, of rather exact sizes, around the spots. ❋ Unknown (2010)

Zwicky was the first to discover that this might be so, back in 1934 (or thereabouts), but the first x-ray observations of galaxy clusters (1970s?) provided the first direct confirmation of the fact that most of the baryons in such clusters are in the hot plasma which pervades them (and not, as one would perhaps expect, in the galaxies themselves). ❋ Unknown (2010)

Much of it is thought to be remnants of the Big Big, and these baryons are studies under baryongenesis. ❋ Unknown (2010)

A big majority (60-80%?) of the universe's baryons are found in the intra-cluster medium of rich clusters and in the WHIM (warm-hot intergalactic medium). ❋ Unknown (2010)

As for Jean statement that "A big majority (60-80%?) of the universe's baryons are found in the intra-cluster medium of rich clusters and in the WHIM (warm-hot intergalactic medium)." ❋ Unknown (2010)

A BH losing leptons, even producing baryons, but not because of Hawking radiation ❋ Unknown (2009)

So the blob decays into products, mesons, baryons and leptons and so forth. ❋ Unknown (2009)

But if the baryons in the universe were to be annihilated by the inverse of baryogenesis, again via electroweak quantum tunneling which is allowed in the Standard Model, as baryon number minus lepton number B - L is conserved, then this would force the Higgs field toward its absolute vacuum, cancelling the positive cosmological constant and thereby forcing the universe to collapse. ❋ Unknown (2009)

How did the universe evolve from early times, in which there were equal numbers of baryons and antibaryons, to the present universe, in which there is a precisely measured baryon asymmetry of the universe (BAU)? ❋ Mark (2008)