Nuclear Physics Consolidated Grant 21-24 - University of York

核物理综合补助金 21-24 - 约克大学

• 批准号: ST/V001035/1
• 负责人: David Jenkins
• 金额: $ 235.78万
• 依托单位: University of York
• 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%2FV001035%2F1
• 关键词: Nuclear; Physics; Consolidated; Grant; 21

The York Nuclear Physics Group is firmly positioned as one of the leading groups worldwide having recently expanded to a full complement of 14 academics with broad and connected research programmes encompassing hadron physics, nuclear structure, nuclear astrophysics, nuclear theory and applications-focussed work. Nuclear physics is one of the principal areas of research in the Department of Physics at York, where the group represents about 25% of the academic staff, and enjoys the strong support of the Department and the University in its continued development. The group carries out research in theoretical nuclear physics, as well as experimental nuclear physics which it conducts at leading facilities in Europe, North America and Japan. This consolidated grant will support the group's activities in the period 2021-2024. To explain the context of our research, we have to describe the system we are working on - the atomic nucleus. The atoms forming our visible universe each contain an atomic nucleus, comprised of light (up, down) quarks which manifest as the familiar three-quark groupings of protons and neutrons (together known as nucleons) in a many-body quantum mechanical system. There are many open questions regarding how these nucleons arrange themselves in the nucleus: What happens when the nucleons overlap in violent collisions? Are the strong forces between nucleons the same for different combinations (pn and pp)? What is the role of three-nucleon forces? Do heavy nuclei have a "neutron skin"? These are all topics that our research will address through theoretical developments and an ambitious experimental programme at a wide range of facilities worldwide. The range of nuclei we observe today, from light to heavy elements, was created by nuclear reactions within stars and by the violent collisions of dense stellar objects such as neutron stars. Our research addresses fundamental gaps in our knowledge of the nuclear reactions forming these nuclei in stars by reproducing these reactions here on earth, in the laboratory. We are also probing the underlying nuclear science of neutron stars. There is a lot to learn about neutron stars, it is not even established what is inside! Our group will lead investigations into the exciting possibility that a new form of matter, a hexaquark containing six quarks, could play a pivotal role. At even smaller distance scales, we will also challenge the question of where the mass of the nucleus comes from. We know this arises from the masses of the constituent protons and neutrons. However only ~2% of this comes from the mass of the three quarks making up the nucleon. Exploring this murky quantum world through experiments at world-leading facilities will cast more light on the origins of mass.

约克核物理小组被牢固地定位为全球领先的小组之一，最近扩展到了14个学术界的完整补充，其中包含强大而连通的研究计划，其中包括强子物理学，核结构，核天体物理学，核理论和以应用为重点的工作。核物理学是约克物理学系的主要研究领域之一，该小组代表大约25％的学术人员，并在其持续发展方面得到了该系和大学的大力支持。该小组在欧洲，北美和日本的领先设施中进行的理论核物理学以及实验性核物理学进行了研究。该合并赠款将在2021 - 2024年期间支持该集团的活动。为了解释我们的研究背景，我们必须描述我们正在处理的系统 - 原子核。形成我们可见宇宙的原子每个都包含一个原子核，该原子由光（向上，向下）组成，这些夸克表现为在多体量子机械系统中熟悉的质子和中子（称为核子）的熟悉的三夸克分组。关于这些核如何在细胞核中排列的问题有许多开放的问题：当核子重叠在暴力碰撞中时会发生什么？核子之间的强力是否相同（PN和PP）？三核力量的作用是什么？重核有“中子皮肤”吗？这些都是我们的研究通过理论发展和全球各种设施的雄心勃勃的实验计划来解决的主题。我们今天观察到的核范围是从光到沉重的元素，是由恒星内的核反应以及诸如中子恒星等密集恒星物体的剧烈碰撞所产生的。我们的研究通过在实验室中的地球上重现这些反应，解决了我们对恒星中核反应形成这些核的核反应的基本差距。我们还正在探测中子星的潜在核科学。关于中子恒星，还有很多要学习的东西，甚至没有建立内部的东西！我们的小组将领导对一种令人兴奋的可能性进行调查，即一种新形式的物质，即包含六个夸克的六夸克，可以发挥关键作用。在较小的距离尺度下，我们还将挑战核的质量来自何处的问题。我们知道这是由组成质子和中子的质量引起的。但是，只有约2％来自组成核子的三个夸克的质量。通过在世界领先的设施中进行实验探索这个模糊的量子世界，将更多地阐明弥撒的起源。

项目成果

New ß -decaying state in Bi 214

Bi 214 中的新腐烂状态

• DOI: 10.1103/physrevc.104.054301
• 发表时间: 2021
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Andel B

Producing gold at ISOLDE-CERN

ISOLDE-CERN 生产黄金

• DOI: 10.1016/j.nimb.2021.12.011
• 发表时间: 2022
• 期刊: Beam Interactions with Materials and Atoms
• 作者: Barzakh A

Large Shape Staggering in Neutron-Deficient Bi Isotopes.

• DOI: 10.1103/physrevlett.127.192501
• 发表时间: 2021-11
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: A. Barzakh;A. Andreyev;C. Raison;J. Cubiss;P. Van Duppen;S. Péru;S. Hilaire;S. Goriely;B. Andel;S. Antalic;M. Al Monthery;J. Berengut;J. Bieroń;M. Bissell;A. Borschevsky;K. Chrysalidis;T. Cocolios;T. Day Goodacre;J. Dognon;M. Elantkowska;E. Eliav;G. Farooq-Smith;D. Fedorov;V. Fedosseev;L. Gaffney;R. F. Garcia Ruiz;M. Godefroid;C. Granados;R. Harding;R. Heinke;M. Huyse;J. Karls;P. Larmonier;J. G. Li-J. G.-Li-2109588676;K. Lynch;D. Maison;B. Marsh;P. Molkanov;P. Mošať;A. V. Oleynichenko;V. Panteleev;P. Pyykkö;M. Reitsma;K. Rezynkina;R. Rossel;S. Rothe;J. Ruczkowski;S. Schiffmann;C. Seiffert;M. Seliverstov;S. Sels;L. Skripnikov;M. Stryjczyk;D. Studer;M. Verlinde;S. Wilman;A. Zaitsevskii

Observation of Correlations between Spin and Transverse Momenta in Back-to-Back Dihadron Production at CLAS12

CLAS12 背靠背双强子生产中自旋和横向动量之间相关性的观察

• DOI: 10.1103/physrevlett.130.022501
• 发表时间: 2023
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: Avakian, H.;Hayward, T. B.;Kotzinian, A.;Armstrong, W. R.;Atac, H.;Ayerbe Gayoso, C.;Baashen, L.;Baltzell, N. A.;Barion, L.;Bashkanov, M.
• 通讯作者: Bashkanov, M.

a decay of the neutron-deficient isotope At 190

190 度缺中子同位素的衰变

• DOI: 10.1103/physrevc.108.034303
• 发表时间: 2023
• 期刊: Physical Review C
• 影响因子: 3.1
• 作者: Andreyev A