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Sinoverse Consortium 中宇财团 Seminar

胶球暗物质:从引力波到直接探测 Glueball Dark Matter:From Gravitational Waves to Direct Detection

by Zhi-Wei Wang (UESTC)

Asia/Shanghai
Description

Abstract: This talk presents a unified view of glueball dark matter and related composite states in confining dark Yang–Mills sectors. I first review lattice-informed effective descriptions of dark confinement and chiral dynamics, and show how the resulting phase transitions can generate potentially observable gravitational-wave signals, especially in fermionic and near-conformal regimes. I then discuss the non-perturbative thermal evolution of the dark gluon–glueball system, which leads to a controlled prediction for the relic abundance of scalar glueball dark matter. Building on this framework, I introduce composite glueball axion-like particles generated by a θ term and heavy fermion portals, yielding novel visible-sector couplings. Finally, I present recent progress on direct detection, where UV portal operators are matched to non-perturbative glueball amplitudes through a tensor-Pomeron-inspired EFT, opening a quantitative route to recoil searches and collider-consistent light-portal scenarios. Overall, this framework provides a coherent link between dark confinement, cosmological evolution, and experimental probes of strongly coupled dark sectors.

 

简历:王志伟博士现任电子科技大学研究员,电子科大粒子物理与核物理研究所(SPIN)所长,并入选四川省峨眉计划(省千人),成都市蓉漂计划及电子科技大学校“百人计划”。王博士在加拿大萨斯卡切温大学获得博士学位(2012-2016)。曾于2017年获得加拿大总督学术金牌,为加拿大授予加国博士学术成就的最高荣誉(国家级奖项),并获得University of Saskatchewan全校最佳博士毕业论文,以及Ishwar Gupta物理奖。在获得博士学位之后,王博士任职加拿大滑铁卢大学与丹麦CP3-Origins研究所联合培养博士后(2016-2019)。2019-2021年任职丹麦CP3-Origins研究所博士后研究员。2021-2022任职瑞典Lund大学研究员(高级博士后研究员)。

王志伟博士的研究领域为高能理论物理,研究方向聚焦粒子物理与早期宇宙中强耦合与微扰失效问题,致力于发展非微扰计算方法并建立可检验的理论预言。在强耦合暗物质、相变引力波、多信使检验框架、渐近安全以及高阶重求和计算等方向取得了一系列研究成果。迄今已完成学术论文44篇,其中在国际权威期刊发表论文34篇(含五篇Physical Review Letters及另一篇高被引论文,均为责任作者)。一篇PRL入选“Editors’ Suggestion”,六篇论文单篇引超50次,另有一篇超过100次。

Biography: Dr. Zhi-Wei Wang is currently a Research Professor at the University of Electronic Science and Technology of China (UESTC), where he serves as Director of the Institute of Particle and Nuclear Physics (SPIN). He has been selected for the Sichuan Emei Program, the Chengdu Rongpiao Program, and the UESTC Hundred Talents Program. Dr. Wang received his Ph.D. from the University of Saskatchewan, Canada, during 2012 to 2016. In 2017, he was awarded the Governor General’s Academic Gold Medal, the highest national honor in Canada for doctoral academic achievement. He also received the University of Saskatchewan’s award for the best Ph.D. dissertation and the Ishwar Gupta Award in Physics. After completing his Ph.D., he worked as a joint postdoctoral researcher at the University of Waterloo and the CP3-Origins Institute in Denmark from 2016 to 2019. From 2019 to 2021, he served as a postdoctoral researcher at CP3-Origins, and from 2021 to 2022, he was a researcher and senior postdoctoral fellow at Lund University in Sweden.

Dr. Wang works in high-energy theoretical physics, with research focusing on strongly coupled dynamics and the breakdown of perturbation theory in particle physics and the early Universe. He is devoted to developing non-perturbative methods and establishing testable theoretical predictions. He has made a series of contributions in strongly coupled dark matter, phase-transition gravitational waves, multi-messenger probe frameworks, asymptotic safety, and higher-order resummation techniques. To date, he has completed 44 research papers, including 34 published in leading international journals. These include five papers in Physical Review Letters and one highly cited paper, all as a corresponding or leading author. One of his PRL papers was selected as an Editors’ Suggestion, six of his papers have each received more than 50 citations, and one has received more than 100 citations.

 

Online Link: Join Zoom Meeting
https://umass-amherst.zoom.us/j/9432601370?pwd=V0d6dVUzT3NXaGxvWDBhekdhOFk5UT09&omn=93787572123
Meeting ID: 943 260 1370
Passcode: Saguaro