Ta hanyar sha ko fitar da boson W, kowane nau'in quark (up, charm, da top quarks) na iya canzawa zuwa kowane nau'in quark (down, strange, da bottom quarks) kuma akasin haka. Wannan tsarin canzawar dandano yana haifar da aikin rediyo na lalacewar beta, wanda neutron (n) ya "rarraba" zuwa proton (p), electron (e-) da electron antutrino (eν) (duba hoto). Wannan yana faruwa ne lokacin da ɗayan quarks a cikin neutron (bos) ya rushe zuwa quark ta hanyar fitar da W− virtual neutron, yana canza proton zuwa neutron (wud).
electron da kuma wani electron antineutrino