Taw qhia cov nqi xim
Hauv particle physics, xim them nqi yog khoom ntiag tug ntawm quarks thiab gluons. Raws li lub hauv paus ntawm quantum chromodynamics (QCD), nws muaj feem xyuam rau kev sib cuam tshuam zoo ntawm lawv. Kev them nyiaj xim yog ua piv txwv rau qhov them ntawm ib qhov me me, tab sis vim tias cov lej nyuaj ntawm QCD, muaj ntau cov kev sib txawv ntawm cov xim thiab them nyiaj." xim" ntawm quarks thiab gluons tsis muaj dab tsi los ua kom pom nrog cov xim pom, tab sis tsuas yog lub npe peculiar rau cov cuab yeej uas tsis tshua dhau ntau qhov ntau ntawm cov atomic nucleus. Lo lus" xim" yog tsuas yog vim tias muaj peb hom xim them nyiaj, piv rau peb lub xim xim; kuj, muaj tsuas yog ib hom xwb (tab sis tseem muaj qhov zoo thiab qhov tsis zoo).