Protons contain two "up" quarks and one "down," while neutrons have two "down" quarks and an "up." The newly discovered particle contains a "strange" quark, an "up" quark and a "bottom" quark. The bottom quark is called a "heavy bottom" quark, making the neutral Xi-sub-b about six times heavier than a proton or neutron.
I think my cat ate a "strange quark" yesterday, and threw it up on the rug.
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