The single Λ hyperon quasiparticle in nuclear matter at saturation density has energy -29.55 MeV at zero momentum, residue 0.98, and effective mass ratio 0.747.
Vidaña, Single-particle spectral function of theΛhy- peron in finite nuclei, Nuclear Physics A 958 (2017) 48–70
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Quasiparticle properties of a single $\Lambda$ impurity in symmetric nuclear matter with a regulated $N\Lambda$ interaction
The single Λ hyperon quasiparticle in nuclear matter at saturation density has energy -29.55 MeV at zero momentum, residue 0.98, and effective mass ratio 0.747.