n Illinois, meano refit.
Particle p, is a erprise—but it is a productive one.
today ticle count is ed, butunfortunately, in t is very difficult to understand tionsicles, and ure s t tionsare from one to anotably eacime o unlock a box, ticles called tacravel faster t. Oto find gravitons—t of gravity. At om is not easy to say. Carl Sagan in Cosmos raised ty t if you traveled doo an electron, you mig it contained auniverse of its oion stories of ties. “it,organized into t of galaxies and smaller structures, are an immense numberof otinier elementary particles, leveland so on forever—an infinite dohin universes, endlessly.
And upward as well.”
For most of us it is a surpasses understanding. to read even an elementary guideto particle p nos sucipion decay respectively into a muon plus antineutrino and anantimuon plus neutrino ime of 2.603 x 10-8seconds, tral piondecays into time of about 0.8 x 10-16seconds, and timuon decay respectively into . . .” And so it runs on—and t lucid of interpreters, Steven einberg.
In ttempt to bring just a little simplicity to matters, tecMurray Gell-Mann invented a neicles, essentially, in teveneinberg, “to restore some economy to titude of ive term used byps for protons, neutrons, and oticles governed by trong nuclear force.
Gell-Mann’s t all ill smaller, even morefundamental particles. ed to call ticles partons, as in Dolly, but ead they became known as quarks.
Gell-Mann took terMark!” (Discriminating ps rorks, not larks, even tter is almost certainly tion Joyce al simplicity ofquarks long lived. As tter understood it o introducesubdivisions. Altoo small to aste or any oteristics o six categories—up, dorange, cop, and bottom—o as to ts t it altogetal t terms applied in California during tually out of all t is called tandard Model, of parts kit for tomic andard Model consists of six quarks, sixleptons, five knoulated sixttisist, Peter rong and romagnetism.
t essentially is t am