Abstract
A high resolution study has been made of the two-roton Raman scattering from liquid 4He at T=0.6K and SVP. This experiment shows conclusively that roton-roton interactions are necessary to explain the spectrum. From the shape of the two-roton peak the two-roton binding energy is estimated to be 0.22+or-0.07K. An intrinsic zero temperature linewidth of the pair equal to 0.11+or-0.01K has been found.
Original language | English (US) |
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Article number | 003 |
Pages (from-to) | L90-L94 |
Journal | Journal of Physics C: Solid State Physics |
Volume | 8 |
Issue number | 6 |
DOIs | |
State | Published - 1975 |
Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
- General Engineering
- General Physics and Astronomy