| 1. | Other discrete variables can also be included, such as isospin.
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| 2. | I wrote isospin # Modern understanding of isospin as a result.
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| 3. | I wrote isospin # Modern understanding of isospin as a result.
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| 4. | This changes their weak hypercharge ( and weak isospin ).
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| 5. | This changes their weak isospin ( and weak hypercharge ).
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| 6. | We can then define the conserved current for weak isospin as
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| 7. | Isospin is the symmetry transformation of the weak interactions.
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| 8. | Isospin symmetry remains an important concept in particle physics.
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| 9. | Secondly, there are practical reasons for using baryon number and flavor isospin.
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| 10. | Here, the relevant symmetry is the isospin SU ( 2 ) symmetry.
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