Baryon Number - Particles Not Formed of Quarks

Particles Not Formed of Quarks

Particles without any quarks have a baryon number of zero. Such particles include leptons (electron, muon, tau and their neutrinos) and gauge bosons (photon, W and Z bosons and gluons); or the hypothetical graviton.

Read more about this topic:  Baryon Number

Famous quotes containing the words particles and/or formed:

    In another’s sentences the thought, though it may be immortal, is as it were embalmed, and does not strike you, but here it is so freshly living, even the body of it not having passed through the ordeal of death, that it stirs in the very extremities, and the smallest particles and pronouns are all alive with it. It is not simply dictionary it, yours or mine, but IT.
    Henry David Thoreau (1817–1862)

    Shy and proud men ... are more liable than any others to fall into the hands of parasites and creatures of low character. For in the intimacies which are formed by shy men, they do not choose, but are chosen.
    Sir Henry Taylor (1800–1886)