Timeline for Could $p+p\rightarrow \pi^++d$ occur via the weak interaction?
Current License: CC BY-SA 3.0
7 events
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| Feb 5, 2017 at 18:15 | comment | added | Thomas | @dmckee : The effect is small, but it has been observed in several experiments, see arxiv.org/abs/1303.4132 | |
| Feb 5, 2017 at 17:43 | comment | added | dmckee --- ex-moderator kitten | "The trick is to look for effects that are forbidden in the strong interaction, for example a parity violating spin asymmetry" Exactly. Of course, it's not easy. $G^0$ needed a custom designed and built 10 million dollar detector and months of dedicated Hall C beam to pick out the parity violating scattering amplitude for $p(e,e'p')$ from the merely electromagnetic background. Go figure how much harder it's going to be when the dominate term is strong. | |
| Feb 5, 2017 at 16:47 | history | edited | Thomas | CC BY-SA 3.0 |
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| Feb 5, 2017 at 16:41 | history | edited | Thomas | CC BY-SA 3.0 |
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| Feb 5, 2017 at 15:33 | comment | added | Thomas | Yes, but remember that this is QM, so there is no sense in which a given decay is caused by a specific Feynman diagram. Indeed the leading weak correction is usually an interference term between a strong and a weak amplitude. | |
| Feb 5, 2017 at 15:22 | comment | added | Quantum spaghettification | Are we basically saying that it can occur by both the strong and the weak but since the strong dominates, it usually occurs via the strong route. | |
| Feb 5, 2017 at 15:00 | history | answered | Thomas | CC BY-SA 3.0 |