CAREER: From Fundamental Interactions to Emergent Phenomena: Geometrical Aspects of Nuclear Dynamics
CAREER: From Fundamental Interactions to Emergent Phenomena: Geometrical Aspects of Nuclear Dynamics
批准号:
1654379
负责人:
Elena Litvinova
金额:
$47.5万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-09-01 至 2024-08-31
中文摘要
带有放射性或不稳定原子核束的实验设施的出现,为低能核物理学界研究稀有核同位素的性质、提高对基本相互作用的理解,以及开发具有直接社会影响的应用(包括医学、国土安全和工业)开辟了新的机会。外来核系统的实验信息对于理解宇宙的元素组成和预测恒星和星系的演化起着关键作用。在这种情况下,核理论被要求提供关于实验无法获得的外来核的缺失信息。为此,该项目将有助于实现核动力学的新思想。该理论将以最先进的实验数据为基准。除了通过让研究生参与这项研究来训练他们之外,该项目还包括外联和教育活动,例如艺术科学展览和研究生课程,旨在吸引年轻人才进入核物理领域。这个项目解决了一些基本的理论问题,这些问题是关于松散束缚原子核的微观机制,它们的形状和衰变性质,以及它们的激发光谱。该项目强调核动力学的几何方面:内在变形、与连续体的耦合以及与核超流动性相关的形状和空间密度分布。这里开发的方法将以更高的精度和预测能力解释中等质量和重核中出现的集体现象,这对天体物理学应用至关重要。与主要核物理设施(如NSCL/FRIB和RIKEN)最近和未来的实验结果进行比较,将限制潜在核力和理论中包含的多体耦合机制。
英文摘要
The advent of experimental facilities with beams of radioactive, or unstable, atomic nuclei opens up new opportunities for the low-energy nuclear physics community to study the properties of rare nuclear isotopes, improve the understanding of fundamental interactions, and develop applications with direct societal impact, including in medicine, homeland security, and industry. Experimental information on exotic nuclear systems plays a key role for understanding the elemental composition of the universe and for predicting the evolution of stars and galaxies. In this context, nuclear theory is called upon to provide missing information about exotic nuclei that are not accessible experimentally. To this effort, this project will contribute an implementation of novel ideas on nuclear dynamics. The theory will be benchmarked against state-of-the-art experimental data. In addition to training graduate students by engaging them in this research, the project includes outreach and education activities, such as art-science exhibitions and graduate courses, aimed at attracting young talents to the field of nuclear physics. This project addresses fundamental theoretical questions about the microscopic mechanisms responsible for the binding of loosely-bound nuclei, their shapes and decay properties, and for spectra of their excitations. The project emphasizes the geometrical aspects of nuclear dynamics: intrinsic deformations, coupling to the continuum, and shapes and spatial density distributions associated with nuclear superfluidity. The approach developed here will account for emergent collective phenomena in medium-mass and heavy nuclei with higher accuracy and predictive power that are crucial for astrophysical applications. Comparison to results of recent and future experiments at major nuclear physics facilities, such as NSCL/FRIB and RIKEN, will constrain both the underlying nuclear forces and the many-body coupling mechanisms included in the theory.
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DOI:
10.1103/physrevc.106.044304
发表时间:
2022
期刊:
Physical Review C
影响因子:
3.1
作者:
[Wibowo, Herlik, Litvinova, Elena]
通讯作者:
Litvinova, Elena
Impact of complex many-body correlations on electron capture in thermally excited nuclei around Ni78
DOI:
10.1103/physrevc.103.024326
发表时间:
2020-11
期刊:
Physical Review C
影响因子:
3.1
作者:
[E. Litvinova;C. Robin]
通讯作者:
E. Litvinova;C. Robin
Nuclear response at zero and finite temperature
零温度和有限温度下的核反应
DOI:
10.1051/epjconf/201922301033
发表时间:
2019
期刊:
EPJ Web of Conferences
影响因子:
--
作者:
[Litvinova, Elena, Schuck, Peter, Wibowo, Herlik, de Angelis, G., Corradi, L.]
通讯作者:
Corradi, L.
Isospin dynamics in nuclear structure
核结构中的同位旋动力学
DOI:
10.1051/epjconf/201818202075
发表时间:
2018
期刊:
EPJ Web of Conferences
影响因子:
--
作者:
[Litvinova, Elena, Robin, Caroline, Schuck, Peter, Aharonov, Y., Bravina, L., Kabana, S.]
通讯作者:
Kabana, S.
DOI:
10.1103/physrevc.107.l041302
发表时间:
2023
期刊:
Physical Review C
影响因子:
3.1
作者:
[Litvinova, Elena]
通讯作者:
Litvinova, Elena
共 23 条
The Nuclear Many-Body Problem: Toward a Predictive Microscopic Theory
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批准号:2209376
-
项目类别:Standard Grant
-
资助金额:$30.0万
-
财政年份:2022
-
负责人:Elena Litvinova
-
依托单位:
Spin-Isospin Response of Exotic Nuclei: Fine Structure, Quenching and Beta-Decay Properties
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批准号:1404343
-
项目类别:Standard Grant
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资助金额:$28.42万
-
财政年份:2014
-
负责人:Elena Litvinova
-
依托单位:
Probing Exotic Nuclear Masses and Structure Relevant to the Heavy Element Nucleosynthesis
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批准号:1204486
-
项目类别:Continuing Grant
-
资助金额:$24.0万
-
财政年份:2012
-
负责人:Elena Litvinova
-
依托单位:
海外基金