Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with helicity
Search options questions only
not deleted
user 244116
In particle physics, helicity is the projection of the angular momentum onto the direction of momentum. For massless spin-1⁄2 particles, helicity is equivalent to the chirality operator multiplied by $\hbar/2$, so may be used for related chirality questions as well.
20
votes
3
answers
3k
views
A thought experiment about neutrinos
So they have left-handed helicity.
Now I imagine (this is a thought experiment, OK?) … , left-handed helicity. …
- 3,719
2
votes
1
answer
414
views
Charged fermions have both chiralities, with the same mass. Shouldn’t neutrinos, also massiv...
Photons are massless, so helicity coincide with chirality. … And also mixed state of helicity that does not even have to be equal to chirality. …
- 28.7k