Abstract
The form factors S(Q→,ω) given by two-quasiparticle theories of the dynamics of He4 are compared. The differences are large enough so that experiments should be able to distinguish between them. A careful line-shape measurement will permit a determination of the quasiparticle self-energy.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1462-1463 |
| Number of pages | 2 |
| Journal | Physical Review B |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1978 |
Bibliographical note
Funding Information:Work supported in part by NSF Grant No. DMR-7409267.