Gene Naden
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Wikipedia quotes weak isospin values for some particles and not for others. Why? Is the concept of weak isospin as an observable quantity not meaningful for, for example, pions?
What particles have fixed weak isospin and T3?
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Gene Naden
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Wikipedia article on weak isospin seems to say that in some cases it is not conserved due to interaction with the Higgs field. What would be an example of a particle reaction where this is true?
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the mass terms
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what particles you mean?
In general it's not an observable because the electroweak symmetry is broken.
In general it's not an observable because the electroweak symmetry is broken.
Gene Naden
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Still wondering what is the reaction
Gene Naden
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Wikipedia gives a value for the weak isospin of left-handed electrons, even though they have mass. But not for pions. So when does a particle have a definite value for T and T3 and when does it not. Thanks.