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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
Quasiparticle properties of a single alpha particle in cold neutron matter
| Title: | Quasiparticle properties of a single alpha particle in cold neutron matter |
| Authors: | Nakano, Eiji Browse this author | | Iida, Kei Browse this author | | Horiuchi, Wataru Browse this author →KAKEN DB |
| Issue Date: | 2-Nov-2020 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review C |
| Volume: | 102 |
| Issue: | 5 |
| Start Page: | 055802 |
| Publisher DOI: | 10.1103/PhysRevC.102.055802 |
| Abstract: | Light clusters such as alpha particles and deuterons are predicted to occur in hot nuclear matter as encountered in intermediate-energy heavy-ion collisions and protoneutron stars. To examine the in-medium properties of such light clusters, we consider a much simplified system in which, like an impurity, a single alpha particle is embedded in a zero-temperature, dilute gas of noninteracting neutrons. By adopting a non-self-consistent ladder approximation for the effective interaction between the impurity and the gas, which is often used for analyses of Fermi polarons in a gas of ultracold atoms, we calculate the quasiparticle properties of the impurity, i.e., the energy shift, effective mass, quasiparticle residue, and damping rate. |
| Rights: | ©2020 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/80013 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 堀内 渉
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