Towards Hypernuclei from Nuclear Lattice Effective Field Theory
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866913535293915136 |
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| author | Hildenbrand, Fabian Elhatisari, Serdar Ren, Zhengxue Meißner, Ulf-G. |
| author_facet | Hildenbrand, Fabian Elhatisari, Serdar Ren, Zhengxue Meißner, Ulf-G. |
| contents | Understanding the strong interactions within baryonic systems beyond the up and down quark sector is pivotal for a comprehensive description of nuclear forces. This study explores the interactions involving hyperons, particularly the $Λ$ particle, within the framework of nuclear lattice effective field theory (NLEFT). By incorporating $Λ$ hyperons into the NLEFT framework, we extend our investigation into the $S = -1$ sector, allowing us to probe the third dimension of the nuclear chart. We calculate the $Λ$ separation energies ($B_Λ$) of hypernuclei up to the medium-mass region, providing valuable insights into hyperon-nucleon ($YN$) and hyperon-nucleon-nucleon ($YNN$) interactions. Our calculations employ high-fidelity chiral interactions at N${}^3$LO for nucleons and extend it to $Λ$ hyperons with leading-order S-wave $YN$ interactions as well as $YNN$ forces constrained only by the $A=4,5$ systems. Our results contribute to a deeper understanding of the SU(3) symmetry breaking and establish a foundation for future improvements in hypernuclear calculations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_17638 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Towards Hypernuclei from Nuclear Lattice Effective Field Theory Hildenbrand, Fabian Elhatisari, Serdar Ren, Zhengxue Meißner, Ulf-G. Nuclear Theory High Energy Physics - Lattice High Energy Physics - Phenomenology Computational Physics Understanding the strong interactions within baryonic systems beyond the up and down quark sector is pivotal for a comprehensive description of nuclear forces. This study explores the interactions involving hyperons, particularly the $Λ$ particle, within the framework of nuclear lattice effective field theory (NLEFT). By incorporating $Λ$ hyperons into the NLEFT framework, we extend our investigation into the $S = -1$ sector, allowing us to probe the third dimension of the nuclear chart. We calculate the $Λ$ separation energies ($B_Λ$) of hypernuclei up to the medium-mass region, providing valuable insights into hyperon-nucleon ($YN$) and hyperon-nucleon-nucleon ($YNN$) interactions. Our calculations employ high-fidelity chiral interactions at N${}^3$LO for nucleons and extend it to $Λ$ hyperons with leading-order S-wave $YN$ interactions as well as $YNN$ forces constrained only by the $A=4,5$ systems. Our results contribute to a deeper understanding of the SU(3) symmetry breaking and establish a foundation for future improvements in hypernuclear calculations. |
| title | Towards Hypernuclei from Nuclear Lattice Effective Field Theory |
| topic | Nuclear Theory High Energy Physics - Lattice High Energy Physics - Phenomenology Computational Physics |
| url | https://arxiv.org/abs/2406.17638 |