| The charm quark stays effectively at rest inside the baryon because it is much more massive than the up, down and strange quarks. |
| When you add the appropriate baryon and lepton numbers and know the beginning charge of both particles, all three of these numbers must be equal before and after the reaction. |
| The cosmic microwave background radiation contains billions of photons for every baryon. |
| The proton's formidable stability is equal to a fundamental law in nature: the maintenance of the baryon number. |
| The short answer is that strangeness refers to the amount of strange quark content in a given baryon. |
| The baryon classification took on new members, including particles more massive than the proton called hyperons. |
