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Electromagnetic excitations and responses in nuclei from first principles
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SYSNO ASEP 0499248 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Electromagnetic excitations and responses in nuclei from first principles Author(s) Baker, R. B. (US)
Launey, K. D. (US)
Dinur, N. N. (CA)
Bacca, S. (CA)
Draayer, J. P. (US)
Dytrych, Tomáš (UJF-V) ORCID, SAINumber of authors 6 Article number 020006 Source Title AIP Conference Proceedings, Proceedings of the 4th International Workshop on State of the Art in Nuclear Cluster Physics (SOTANCP4), 2038. - Melville : AIP Publishing, 2018 - ISSN 0094-243X - ISBN 978-0-73541-764-9 Number of pages 6 s. Publication form Print - P Action 4th International Workshop on State of the Art in Nuclear Cluster Physics (SOTANCP4) Event date 13.05.2018 - 18.05.2018 VEvent location Texas Country US - United States Event type WRD Language eng - English Country US - United States Keywords ab initio symmetry ; no-core shell model ; nucleon-nucleon potentials Subject RIV BE - Theoretical Physics OECD category Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect) R&D Projects GA16-16772S GA ČR - Czech Science Foundation (CSF) Institutional support UJF-V - RVO:61389005 UT WOS 000468354600005 EID SCOPUS 85057281407 DOI 10.1063/1.5078825 Annotation We discuss the role of clustering on monopole, dipole, and quadrupole excitations in nuclei in the framework of the ab initio symmetry-adapted no-core shell model (SA-NCSM). The SA-NCSM starts from nucleon-nucleon potentials and, by exploring symmetries known to dominate the nuclear dynamics, can reach nuclei up through the calcium region by accommodating ultra-large model spaces critical to descriptions of clustering and collectivity. The results are based on calculations of electromagnetic sum rules and discretized responses using the Lanczos algorithm, that can be used to determine response functions, and for 4He are benchmarked against exact solutions of the hyperspherical harmonics method. In particular, we focus on He, Be, and O isotopes, including giant resonances and monopole sum rules. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2019
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