Timeline for Is the Higgs boson an elementary particle? If so, why does it decay?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Jan 15, 2019 at 7:20 | comment | added | virtual82 | To add to what Dan mentioned - which is impeccable according to QFT - here a couple of examples of Higgs decay expressed in Feynman diagrams: inspirehep.net/record/929477/plots that involve more than photons | |
| Jan 15, 2019 at 5:23 | comment | added | user6760 | Yes it makes sense to me now the virtual particle that you have mentioned. | |
| Jan 15, 2019 at 5:08 | comment | added | Chiral Anomaly | @user6760 A common approximation method in QFT involves starting with a different model that has only non-interacting fields, then adding a series of "corrections" to gradually scootch the results closer to what the real model with interacting fields would predict. That's what Feynman diagrams are about, and that's what the "virtual particle" langauge is about. In a model with non-interacting fields, there is a relatively direct correspondence between fields and particles; but that correspondence becomes less direct (to say the least) in models where the fields interact. | |
| Jan 15, 2019 at 4:56 | comment | added | Chiral Anomaly | @user6760 I'll shy away from using the word "reality" here (because different-looking descriptions can make equivalent predictions), but yes: The way quantum field theory describes things is as quantum fields interacting with each other. A particle is one manifestation of all those fields interacting with each other. The Higgs particle involves more than just the Higgs field. | |
| Jan 15, 2019 at 4:53 | comment | added | user6760 | are u saying the excitation of the field can disturb other fields too? So the reality is just fields interacting with one another. | |
| Jan 15, 2019 at 4:15 | history | answered | Chiral Anomaly | CC BY-SA 4.0 |