Manchester Nuclear Physics Consolidated Grant 2020

曼彻斯特核物理综合补助金 2020

• 批准号: ST/V001116/1
• 负责人: Kieran Flanagan
• 金额: $ 173.57万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FV001116%2F1
• 关键词: Manchester; Nuclear; Physics; Consolidated; Grant

Nuclear Physics aims to understand the structure and dynamics of nuclear systems. It is the key to understanding the Universe from the first microseconds of its inception when the quark-gluon plasma prevailed, through its history of star and galaxy formation where nuclear reactions play an essential role both in the generation of energy and the creation of elements. The field also has applications that benefit society in diverse areas, from medicine and security to power production, and a strong impact on other fields of science. The Manchester group is part of the UK nuclear community which has devised a mode of operation that enables it to make leading edge contributions at an international level. Experimental work is performed at specific overseas facilities with focussed investment in the necessary instrumentation to carry out this work.Atomic nuclei are a unique quantal laboratory in which microscopic as well as mesoscopic features, driven by effective two-body and three-body forces, can be studied. They are complex many-body systems, but often display unexpected regularities and simple excitation patterns that arise from underlying shell structure, pairing and collective modes of excitation. Such properties are also exhibited by simpler mesoscopic systems (for example, metallic clusters, quantum dots, and atomic condensates) the understanding of which draws heavily on techniques developed and honed in nuclear physics. A fundamental challenge is to understand nuclear properties ab-initio from the interplay of the strong, weak, and electromagnetic forces between individual nucleons. In recent years, enormous progress has been made with such programmes for light nuclei. For heavier nuclei, shell, cluster and other beyond mean field many-body techniques, based on effective interactions, provide essential frameworks for correlating experimental data, yet still lack the refinement to reliably predict nuclear properties as one moves more than a few nucleons from well-studied stable nuclei. Experimental measurements are made using the techniques of transfer reactions, gamma-ray spectroscopy and measurements of hyperfine atomic effects using lasers.We also aim to make connections between the interactions of nucleons and the underlying theory that describes the strong force, Quantum Chromodynamics. Key quantities are the polarisabilities that describe how the structures of nucleons respond to external electric and magnetic fields. We are developing theoretical tools to determine these from experiments on the scattering of photons from hydrogen and other light nuclei. The latter are needed to learn about the the properties of the neutron since it is an unstable particle, and are also interesting for the testing of nuclear forces in few-body systems and for the calculation of muonic atom Lamb shifts.

核物理学旨在了解核系统的结构和动力学。它是理解宇宙的关键，从它诞生的第一微秒开始，当夸克-胶子等离子体盛行时，通过它的星星和星系形成的历史，核反应在能量的产生和元素的创造中发挥着至关重要的作用。该领域还具有在不同领域造福社会的应用，从医学和安全到电力生产，以及对其他科学领域的强烈影响。曼彻斯特集团是英国核社区的一部分，该社区设计了一种运作模式，使其能够在国际层面上做出领先的贡献。实验工作在海外的特定设施进行，并集中投资于进行这项工作所需的仪器。原子核是一个独特的量子实验室，在有效的二体力和三体力的驱动下，可以研究微观和介观特征。它们是复杂的多体系统，但经常显示出意想不到的非线性和简单的激发模式，这些模式来自底层的壳结构、配对和集体激发模式。这种性质也表现在更简单的介观系统（例如，金属团簇，量子点和原子凝聚体）中，对这些系统的理解在很大程度上依赖于核物理中开发和磨练的技术。一个基本的挑战是从单个核子之间的强、弱和电磁力的相互作用从头开始理解核性质。近年来，轻核的这类方案取得了巨大进展。对于较重的核，壳层、团簇和其他基于有效相互作用的超越平均场多体技术为关联实验数据提供了必要的框架，但仍然缺乏精确的方法来可靠地预测核性质，因为人们从研究充分的稳定核中移动了几个以上的核子。实验测量是使用转移反应，γ射线光谱学和超精细原子效应的测量使用激光的技术。我们还旨在建立核子的相互作用和描述强力的基础理论，量子色动力学之间的联系。关键量是描述核子结构如何响应外部电场和磁场的极化率。我们正在开发理论工具，以确定这些从氢和其他轻原子核的光子散射实验。后者需要了解中子的性质，因为它是一种不稳定的粒子，并且对于测试少体系统中的核力和计算μ原子兰姆位移也很有趣。

项目成果

Pinning down electron correlations in RaF via spectroscopy of excited states

通过激发态光谱确定 RaF 中的电子相关性

• DOI: 10.48550/arxiv.2308.14862
• 发表时间: 2023
• 作者: Athanasakis-Kaklamanakis M

Voltage scanning and technical upgrades at the Collinear Resonance Ionization Spectroscopy experiment

• DOI: 10.1016/j.nimb.2023.04.054
• 发表时间: 2023-03
• 期刊: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 作者: M. Athanasakis-Kaklamanakis;J. Reilly;Á. Koszorús;S. Wilkins;L. Lalanne;S. Geldhof;M. Nichols

Probing the quadrupole transition strength of 15C via deuteron inelastic scattering

通过氘核非弹性散射探测 15C 的四极跃迁强度

• DOI: 10.48550/arxiv.2209.12252
• 发表时间: 2022
• 作者: Chen J

Electromagnetic moments of scandium isotopes and N = 28 isotones in the distinctive 0f7/2 orbit

钪同位素和 N = 28 同位素在独特 0f7/2 轨道上的电磁矩

• DOI: 10.1016/j.physletb.2022.137064
• 发表时间: 2022
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: S. W. Bai;Á. Koszorús;B. S. Hu;X. F. Yang;J. Billowes;C. L. Binnersley;M. L. Bissell;K. Blaum;P. Campbell;B. Cheal;T. E. Cocolios;R. P. de Groote;C. S. Devlin;K. T. Flanagan;R. F. Garcia Ruiz;H. Heylen;J. D. Holt;A. Kanellakopoulos;J. Krämer;V. Lagaki;B.
• 通讯作者: B.

Direct Determination of Fission-Barrier Heights Using Light-Ion Transfer in Inverse Kinematics.

使用逆运动学中的轻离子传递直接测定裂变势垒高度。

• DOI: 10.1103/physrevlett.130.202501
• 发表时间: 2023
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Bennett SA