This title appears in the Scientific Report :
2018
Please use the identifier:
http://hdl.handle.net/2128/18579 in citations.
Ab Initio Structure of p-Shell Hypernuclei
Ab Initio Structure of p-Shell Hypernuclei
We develop an extension of the No-Core Shell Model (NCSM) to hypernuclei. We outline the formalism of the NCSM and the computational methods needed to solve the quantum many-body problem. A major computational challenge is the rapid growth of the model space with the number of particles in the syste...
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Personal Name(s): | Wirth, R. (Corresponding author) |
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Roth, R. (Corresponding author) | |
Contributing Institute: |
John von Neumann - Institut für Computing; NIC |
Published in: |
NIC Symposium 2018 |
Imprint: |
Jülich
Forschungszentrum Jülich GmbH, Zentralbibliothek
2018
|
Physical Description: |
205 - 212 |
Conference: | NIC Symposium 2018, Jülich (Germany), 2018-02-22 - 2018-02-23 |
Document Type: |
Contribution to a book Contribution to a conference proceedings |
Research Program: |
ohne Topic |
Series Title: |
NIC Series
49 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
We develop an extension of the No-Core Shell Model (NCSM) to hypernuclei. We outline the formalism of the NCSM and the computational methods needed to solve the quantum many-body problem. A major computational challenge is the rapid growth of the model space with the number of particles in the system and the model-space truncation parameter. We mitigate this by introducing an importance-truncation scheme that restricts the model space to the parts that are deemed important for the problem at hand. Also, to speed up convergence with the model-space truncation, we perform a Similarity Renormalisation Group transformation on the Hamiltonian before the calculation. We close with example calculations of two p-shell hypernuclei and discuss the implications of our results on the construction of hyperon-nucleon interactions as well as on neutron-star physics. |