Timeline for Confusion on Triangle Diagram and contact terms (from Mark Srednicki' book)
Current License: CC BY-SA 4.0
3 events
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| Jun 17, 2021 at 14:01 | comment | added | Nihar Karve | The same question was asked here. Although it doesn't have an answer, there is a helpful comment by Anonjohn, saying "The right hand side of the ward identity is the contact terms. But each contact term is the variation of the operator under the U(1) gauge(axial) symmetry times a delta function. Since the currents themselves are invariants under the symmetry, the contact terms vanish" | |
| Jun 17, 2021 at 9:52 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
deleted 1 character in body; edited title
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| Jun 17, 2021 at 8:23 | history | asked | Sven2009 | CC BY-SA 4.0 |