Search for Neutrinoless Double Beta Decay in SNO+
在 SNO 中寻找无中微子双贝塔衰变
基本信息
- 批准号:2881003
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:英国
- 项目类别:Studentship
- 财政年份:2023
- 资助国家:英国
- 起止时间:2023 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Some of the most exciting physics to emerge over the last decade has been in the field of neutrino physics. One of the forefront experiments here has been the Sudbury Neutrino Observatory (SNO), based in the SNOLAB underground scientific laboratory in Sudbury, Ontario (Canada), which was a recipient of the 2015 Nobel Prize in physics. The SNO group at Oxford have played a leading role in solving the "Solar Neutrino Problem" and clearly demonstrating, for the first time, that neutrinos exists as mixed states which allow them to apparently "oscillate" from one type to another. On the heels of this tremendously successful project, a follow-on experiment, SNO+, is being pursued with a remarkably diverse and interesting range of physics objectives. The main objective of this project is to sensitively search for a very rare process called "neutrinoless double beta decay." An observation of this would both permit a determination of the absolute neutrino masses and would establish that neutrinos act as their own antiparticles, which could have significant consequences for our understanding of the matter/antimatter asymmetry in the universe. This area of study is considered to be of extremely high importance in particle physics and the Oxford group has played a fundamental role in establishing the technique that will be used for this search. In addition, other physics goals include studies of low energy solar neutrinos, oscillations of reactor antineutrinos, searches for non-standard modes of nucleon decay, study of geo-neutrinos generated from within the earth, and to act as an important detector for neutrinos from galactic supernovae. The incoming student will work closely with the Oxford SNO+ group, which currently consists of 3 academics, 3 postdoctoral researcher and 5 other PhD students and is part of a larger UK effort, which includes 4 additional institutions: University of Sussex, University of Liverpool, KCL and University of Lancaster. The UK SNO+ collaborators comprise ~30% of the collaboration and fill many key positions within the project to which the student will also contribute. The head of the Oxford group, Steve Biller, is the UK spokesperson and leads the development effort on tellurium loading techniques in scintillator for neutrinoless double beta decay, where Oxford has made significant contributions and the thesis project will involve an extension of this work. The UK groups jointly have responsibility for delivering one of the major calibration systems for the experiment, the Oxford portion of which focuses on in situ measurements of optical scattering within the detector, and the student's work will also involve analysis related to this system. The main physics effort for the thesis will focus on neutrinoless double beta decay results and developments towards future phases.The detector is currently operating as a liquid scintillation detector and producing a variety of physics results. Isotope for neutrinoless double beta decay will be introduced in 2025. The incoming PhD student will participate in development, simulation, calibration, operation, analysis and the production of the neutrinoless double beta decay results that will follow.
在过去十年中出现的一些最令人兴奋的物理学是在中微子物理学领域。这里的前沿实验之一是萨德伯里中微子天文台(SNO),它位于加拿大安大略省萨德伯里的SNOLAB地下科学实验室,是2015年诺贝尔物理学奖的获得者。牛津大学的SNO小组在解决“太阳中微子问题”方面发挥了主导作用,并首次清楚地证明了中微子以混合状态存在,这使得它们可以从一种类型“振荡”到另一种类型。在这个非常成功的项目之后,一个后续的实验,SNO+,正在进行一个非常多样化和有趣的物理目标范围。该项目的主要目标是灵敏地寻找一种非常罕见的过程,称为“中微子双β衰变”。对这一现象的观察,既可以确定中微子的绝对质量,也可以确定中微子作为自己的反粒子,这可能对我们理解宇宙中物质/反物质的不对称性产生重大影响。这一研究领域被认为在粒子物理学中具有极高的重要性,牛津大学的研究小组在建立将用于这项研究的技术方面发挥了重要作用。此外,其他物理目标包括低能太阳中微子的研究,反应堆反中微子的振荡,寻找非标准的核子衰变模式,研究地球内部产生的地球中微子,以及作为银河系超新星中微子的重要探测器。即将入学的学生将与牛津大学SNO+小组密切合作,该小组目前由3名学者,3名博士后研究员和5名其他博士生组成,是英国更大努力的一部分,其中包括4个额外的机构:苏塞克斯大学,利物浦大学,KCL和兰开斯特大学。英国SNO+合作者约占合作的30%,并填补了项目中的许多关键职位,学生也将为此做出贡献。牛津小组的负责人史蒂夫·比勒是英国的发言人,他领导了中微子双β衰变闪烁体中碲加载技术的开发工作,牛津大学在这方面做出了重大贡献,论文项目将包括对这项工作的扩展。英国小组共同负责为实验提供一个主要的校准系统,其中牛津部分侧重于探测器内光学散射的原位测量,学生的工作也将涉及与该系统相关的分析。本论文的主要物理工作将集中在中微子双β衰变结果和未来阶段的发展上。该探测器目前作为液体闪烁探测器运行,并产生各种物理结果。中微子双β衰变的同位素将于2025年推出。即将进入的博士生将参与开发,模拟,校准,操作,分析和生产中微子双β衰变结果。
项目成果
期刊论文数量(0)
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其他文献
吉治仁志 他: "トランスジェニックマウスによるTIMP-1の線維化促進機序"最新医学. 55. 1781-1787 (2000)
Hitoshi Yoshiji 等:“转基因小鼠中 TIMP-1 的促纤维化机制”现代医学 55. 1781-1787 (2000)。
- DOI:
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LiDAR Implementations for Autonomous Vehicle Applications
- DOI:
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2021 - 期刊:
- 影响因子:0
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吉治仁志 他: "イラスト医学&サイエンスシリーズ血管の分子医学"羊土社(渋谷正史編). 125 (2000)
Hitoshi Yoshiji 等人:“血管医学与科学系列分子医学图解”Yodosha(涉谷正志编辑)125(2000)。
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Effect of manidipine hydrochloride,a calcium antagonist,on isoproterenol-induced left ventricular hypertrophy: "Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,K.,Teragaki,M.,Iwao,H.and Yoshikawa,J." Jpn Circ J. 62(1). 47-52 (1998)
钙拮抗剂盐酸马尼地平对异丙肾上腺素引起的左心室肥厚的影响:“Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,
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