1. It is not uncommon to also replace strangeness by flavor hypercharge . 2. This changes their weak hypercharge ( and weak isospin ). 3. This changes their weak isospin ( and weak hypercharge ). 4. The weak hypercharge ( ) of both components is. 5. That's why sometimes it is usefull to replace strangeness with flavor hypercharge . 6. Weak hypercharge , however, remains of practical use in various theories of the electroweak interaction. 7. A sterile neutrino would have the same weak hypercharge , weak isospin, and mass as its antiparticle. 8. Hypercharge in particle physics is a quantum number relating the strong interactions of the SU ( 3 ) model.9. Isospin is defined in the SU ( 2 ) model while the SU ( 3 ) model defines hypercharge . 10. It is conserved ( only terms that are overall weak-hypercharge neutral are allowed in the Lagrangian ).
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