3rd Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2025)

6 Jun 2025, 12:00 → 9 Jun 2025, 17:55 Asia/Shanghai

第3届粒子物理、天体物理和宇宙学前沿课题研讨会
（粒子物理、天体物理和宇宙学前沿国际学术研讨会）
将于 2025 年 6 月 6 日至 6 月 9 日在广州举办。

前所未有的高能对撞数据、更高精度的粒子物理测量、不断升级的天文和宇宙学观测、迅速积累的引力波观测将我们带入了一个前所未有的境地：在粒子物理、天体物理和宇宙学的交叉领域不断涌现新的研究课题和热点，这也正逐渐加深我们对粒子物理、天文观测和早期宇宙的理解和认识。本会议将为相关领域专家提供一个相互交流的平台，深入探讨目前的研究现状和未来的可能方向，促进国内相关研究领域的发展。本次会议将涉及味物 理，中微子、暗物质，天体物理、宇宙学、引力波等多个主题。

本次会议除口头报告外，还将提供海报展示的机会，欢迎大家提交口头报告和海报摘要，并积极参会。

TOPAC 第一届会议于 2023 年在上海交通大学李政道研究所举办；第二届会议于 2024 年在东南大学举办；本次是 TOPAC 会议的第三届，由中山大学主办，上海交通大学、东南大学、清华大学协办。举办地在广州。

会议有关事项：
一．会议时间：
2025 年 6月 6 日下午：报到（中大学人馆1楼大堂）
2025 年 6 月 7 日至 6 月 9 日：线下报告
2025 年 6 月 10 日：离会

二．会议注册：
网上注册截止日期：2025 年 4 月 15 日
会议网址：https://indico-tdli.sjtu.edu.cn/event/3993/

会议预定酒店目前有三个：

1. 中大学人馆（总房间数量仅66间）

地址：广州市海珠区滨江东路中山大学北门科技文化交流中心中大凯丰酒店（中大学人馆）

在中大校园内，离中大北门近，会场也在学人馆。推荐高级专家尽早预定。单价500元（不含早餐），早餐50元可计入房费，请入住时自行告知前台。

2. 莱斯登酒店

地址： 广州市海珠区新港西路153号

在中大校园外，在中大南门附近，距离会场走路1公里左右。房间数量较丰富，可供青年学者、博士后和学生们选择。

3. 全季酒店 （中大地铁站店）

地址： 广州市海珠区怡乐路78号

在中大校园外，离中大西门近，距离会场走路2公里左右。房间数量较多，条件比莱斯登酒店稍好，可供青年学者、博士后和学生们选择。

三.会议注册费：
教师：2000元
学生和博士后：1500元

四.组织委员会（拼音顺序）
葛韶锋（上海交通大学） 
何小刚（上海交通大学） 
邵立晶（北京大学）
王志伟（电子科技大学）
余钊焕（中山大学）
岳　骞（清华大学）
张宏浩（中山大学，大会主席）
张永超（东南大学）

五．联系人：
骆俊杰   手机号：15220526778
余钊焕   手机号：15201305837

 

3rd TOPAC: Topics of Particle, Astro and Cosmo Frontiers

The 3rd TOPAC (Topics of Particle, Astro and Cosmo Frontiers)  will be held in Guangzhou from June 6 to June 9, 2025.

Unprecedented amount of high-energy collision data, higher precision measurements of particle physics experiments, upgrading astrophysical and cosmological observations, and quickly increasing gravitational wave measurements are bringing us into a new territory to be explored. Interdisciplinary research topics and highlights keep emerging across particle physics, astrophysics, and cosmology, which is enhancing our understanding of elementary particles, astrophysical observations, and the early universe. This TOPAC meeting will provide a platform for experts in different fields to interact with each other to deeply discuss the current status and possible future directions. Hopefully this would push the development of involved directions. This TOPAC meeting covers multiple topics including flavor, neutrino, dark matter, astrophysics, cosmology, and gravitational wave.

In addition to the oral talks, this TOPAC meeting would also provide poster presentations. Abstracts for oral talks and poster presentations are highly welcome. You are welcome to register and participate in the TOPAC meeting.

The 1st TOPAC meeting was held at Tsung-Dao Lee Institute, Shanghai Jiao Tong University in 2023. The 2nd TOPAC meeting was held in 2024 at Southeast University. This is the 3rd TOPAC conference, hosted by Sun Yat-sen University, with the cooperation of Shanghai Jiao Tong University, Southeast University, and Tsinghua University. The location will be in Guangzhou.

Conference Items:

1. Conference Dates:
June 6, 2025: Arrival
June 7, 2025 to June 9, 2025: Onsite talks
June 10, 2025: Departure

2. Registration:

Deadline: April 15, 2025
Indico: https://indico-tdli.sjtu.edu.cn/event/3993/

3. Conference Registration Fee:
Teachers and Professors: CNY 2000
Students and postdoctoral researchers: CNY 1500

4. Organization Committee:
Shao-Feng Ge (Shanghai Jiao Tong University)
Xiao-Gang He (Shanghai Jiao Tong University) 
Lijing Shao (Peking University)
Zhi-Wei Wang (University of Electronic Science and Technology of China)
Zhao-Huan Yu (Sun Yat-sen University)
Qian Yue (Tsinghua University)
Hong-Hao Zhang (Sun Yat-sen University, Chair)
Yongchao Zhang (Southeast University)

5. Contact:

Dr. Junjie Luo
Phone Number: 15220526778

Prof. Zhao-Huan Yu
Phone Number: 15201305837

6. Hotels:
1) Sun Yat-sen University Xueren Hall (Total of 66 rooms)
Address: Sun Yat-sen Kaifeng Hotel (Sun Yat-sen University Xueren Hall), Science and Culture Exchange Center, North Gate of Sun Yat-sen University, Binjiang Dong Road, Haizhu District, Guangzhou
Located within the SYSU campus, close to the North Gate of SYSU, with the venue also at this hotel. Senior experts are recommended to book early. Room rate: 500 RMB (excluding breakfast). Breakfast costs 50 RMB and can be added to the room fee; please inform the front desk upon check-in.

2) Laisideng Hotel 
Address: 153 Xingang Xi Road, Haizhu District, Guangzhou
Located outside the SYSU campus, near the South Gate of SYSU, approximately 1 km walking distance to the venue. The hotel has a sufficient number of rooms, suitable for young scholars, postdocs, and students.

3) Ji Hotel (SYSU Metro Station Branch)
Address: 78 Yile Road, Haizhu District, Guangzhou
Located outside the SYSU campus, close to the West Gate of SYSU, approximately 2 km walking distance to the venue. The hotel offers a larger number of rooms with slightly better conditions than Laisideng Hotel, suitable for young scholars, postdocs, and students.

 

History：

• TOPAC 2024：https://indico-tdli.sjtu.edu.cn/event/2116/
• TOPAC 2023：https://indico-tdli.sjtu.edu.cn/event/1637/
   

 

 

3rd_TOPAC_Photo_1.jpg

3rd_TOPAC_Photo_2.jpg

Friday 6 June

14:00 Registration

Saturday 7 June

Opening: 郭东辉院长致欢迎辞 Welcome Address by Dean Donghui Guo

Convener: Hong-Hao Zhang

Plenary Session 1

Convener: Ming-Xing Luo (Zhejiang University)

1 LHCb实验最新进展

Speaker: Wenbin Qian (University of Chinese Academy of Sciences)

中山_wenbin.pptx

2 Discovery of glueball-like particle X(2370) at BESIII

Speaker: Yanping Huang (IHEP)

2025_6_9.pdf

3 PandaX: a multipurpose LXe expeirment

Speaker: Yi Tao (Shanghai Jiao Tong University)

PandaX_A_Multipurpose_LXe_Experiment.pdf

09:45 Break: Photo and Coffee

Plenary Session 2

Convener: Zong-Guo Si (Shandong University)

4 The fermion mass hierarchy problem

Speaker: Raymond Volkas (The University of Melbourne)

Volkas-TOPAC-2025.pdf

5 Asymptotic Grand Unified Models

Speaker: Aldo Deandrea (IP2I, University of Lyon 1)

DeandreaTOPAC25.pdf

6 Composite dark matter from confining hidden gauge sectors and direct detection prospects

Speaker: Roman Pasechnik (Lund university)

TOPAC25-talk_Pasechnik.pdf

7 The central cusps in dark matter halos: fact or fiction?

Speaker: Anton Baushev (Joint Institute for Nuclear Research, Dubna, Russia)

baushev.pdf

12:00 Lunch

Parallel Session 1a: Collider

Convener: Jia Liu (Peking University)

8 How to detect the Higgs mechanism in the dark sector

Speaker: Mengchao Zhang (Jinan University)

9 Pinning down the charm Yukawa coupling at the LHC

Speaker: Zhuoni Qian (Hangzhou Normal University)

202506_topac3_guangzhou.pptx

10 Higgs-strahlung at the LHC in the inert doublet model

Speaker: Yu Zhang

Higgs-strahlung at the LHC in the inert doublet model

11 A C++ program for estimating detector sensitivities to long-lived particles: displaced decay counter

Speaker: Zeren Simon Wang (Hefei University of Technology)

DDC.pdf

12 Confront a dilaton model with the LHC measurements

Speaker: Jinger Wu (中国科学院大学物理科学学院)

topac2025JerWu.pdf

Parallel Session 1b: Phase Transition

Convener: Zhi-Wei Wang (UESTC)

13 早期宇宙的QCD相变

Speaker: Gaoqing Cao (Sun Yat-sen University)

早期宇宙的QCD相变_SYSU2025.pptx

14 Dark Radiation Isocurvature from Cosmological Phase Transitions

Speaker: Peizhi Du (University of Science and Technology of China)

DR_iso_TOPAC.pdf

15 Electroweak phase transition in a vector dark matter scenario

Speaker: Nico Benincasa

dark_SU(2).pdf

16 Observational Constraint on Extended Proca-Neuvo Cosmology

Speaker: Hsu-Wen Chiang (National Taiwan University)

TOPAC2025_Chiang.pdf

17 Conformal Versus Non-Conformal Two Higgs Doublet Model: Phase Transition and Gravitational Wave

Speaker: Jiwei Li

李基伟TOPAC.pdf

15:35 Break: Coffee

Parallel Session 2a: New Physics

Convener: Lei Wu (Nanjing Normal Univeristy)

18 Systematic Spurion Method for Matching Low-Energy EFT to the Mesonic Chiral Lagrangian: Applications in Neutrino Physics？

Speaker: Gang Li (Sun Yat-Sen University)

TOPAC2025_Gang_Li.pdf

19 Can sub-GeV dark matter coherently scatter on the electrons in the atom?

Speaker: Wenyu Wang (Beijing University of Technology)

darkmatter-wenyuwang.pptx

20 Charged Higgs searches in 2HDM

Speaker: Wei Su (SYSU)

Topac-weisu-2025.pdf

21 Supernova Neutrino and Dark Matter

Speaker: Bin Zhu

ZhuBin_TOPAC.pdf

22 Asymptotic grand unification in SO(10) with one extra dimension

Speaker: Gao-Xiang Fang (HIAS, UCAS, Hangzhou)

aSO10_GXF.pdf

Parallel Session 2b: Gravitational Wave

Convener: Wei Chao (BNU)

23 Interpreting PTA data with bouncing cosmology

Speaker: Taotao Qiu (Huazhong University of Science and Technology)

Qiu_20250607.pptx

24 Anisotropies in the cosmological gravitational wave background: from theory to Bayesian inference

Speaker: Ran Ding

TOPAC25_丁然.pdf

25 Probing gravitational dark matter with ultra-high frequency gravitational waves

Speaker: Yong Xu (MITP, JGU Mainz)

TOPAC2025_XU.pdf

26 Unveiling a multicomponent stochastic gravitational-wave background with the TianQin + LISA network

Speaker: Zheng-Cheng Liang (Henan Normal University)

20250607_梁正程.pptx

27 GW from Metastable Cosmic String in Delayed Scaling Scenario — A Cosmological Prospective of View

Speaker: Yifan Hu

GW from Metastable Cosmic String in the Delayed Scaling Scenario.pptx

18:00 Banquet

Sunday 8 June

Plenary Session 3

Convener: Junjie Cao

28 SRF Cavity Search for Dark Photon

Speaker: Jing Shu (PKU)

JingShu_TOPAC2025.pdf

29 Status and Prospect of the CDEX Experiment

Speaker: Wenhan Dai (Tsinghua University)

TOPAC-CDEX-Report-20250608.pdf

30 Line Operators in the Gauged Two-Higgs-Doublet Model

Speaker: Xun Xue (East China Normal University)

XunXue第3届粒子物理、天体物理和宇宙学前沿课题研讨会.pdf

31 Leptogenesis without primordial B-L asymmetry

Speaker: Wei Chao (BNU)

2025-06-08-CW-广州.pdf

10:10 Break: Coffee

Plenary Session 4

Convener: Jing Shu (PKU)

32 Unveiling Ultralight Axion-like Dark Matter — A PTA-PPA Exploration

Speaker: Tao Liu (HKUST)

TaoLiu_2025_06_PTA_PPA_TOPAC2025.pdf

33 Wess-Zumino-Witten interactions of axions

Speaker: Jia Liu (Peking University)

2025-06-08-JL-TOPAC-axion.pdf

34 Predictions for Higgs Pair Production at the LHC

Speaker: Haitao Li (haitao.li@sdu.edu.cn)

haitao-topac.pdf

35 Probing Dark Matter with Gravitational-wave Interferometers in Space

Speaker: Yong Tang (University of Chinese Academy of Sciences)

ZS_Yong_Tang.pdf

12:10 Lunch

Parallel Session 3a: Dark Matter

Convener: Wei Su (SYSU)

36 Recent Results from the XENONnT Dark Matter Experiment

Speaker: Jingqiang Ye (The Chinese University of Hong Kong, Shenzhen)

xenonnt_topac2025_ye.pdf

37 Neutrino mass and flavor mixing via eclectic flavor groups

Speaker: Cai-Chang Li (西北大学)

38 Decoding Dark Matter Particle Properties via Synergistic Multi-Experiment Strategies

Speaker: Chih-Ting Lu (Nanjing Normal University)

卢致廷_TOPAC_2025.pdf

39 Unified Interpretation of Muon g-2 Anomaly, 95 GeV Excesses and Dark Matter in SUSY Models

Speaker: Jingwei Lian (Henan Institute of Science and Technology)

中大2025-连经伟.pdf

40 Examining the Timing Signal and Its Synergy with Polarization Signals of Ultralight Axion-Like Dark Matter

Speaker: Ximeng Li (Institute of High Energy Physics)

PTA-PPA_liximeng_SYSU.pdf

Parallel Session 3b: Gravitational Wave

Convener: Zhaofeng Kang (华中科技大学(HUST))

41 A comprehensive framework for EWPTs: beyond one-loop analysis

Speaker: Yun Jiang

YunJiang_20250607_EWPTframework.pdf

42 A treatment to gravitational perturbations and Lorentz-violating effects with Lagrangian analysis

Speaker: Chao Zhang (China University of Petroleum-Beijing)

Chao-TOPAC2025-Guangzhou_v2.pptx

43 Dynamical nonlinear tails in Schwarzschild black hole ringdown

Speaker: Siyang Ling (City University of Hong Kong)

slides.pdf

44 Dark matter and beyond GR effects in gravitational waves

Speaker: Tucker Manton (HIAS, UCAS)

MantonTOPACslides.pdf

45 Constraining Boson Clouds with Supermassive Black Hole Binaries

Speaker: Xi-Li Zhang (IHEP,CAS)

TOPAC2025_ZhangXL.pdf

15:35 Break: Coffee

Parallel Session 4a: Dark Sector

Convener: Haitao Li (haitao.li@sdu.edu.cn)

46 Revisiting Q-ball dark matter: a closer look at interaction with matter

Speaker: Takumi Kuwahara (Peking University)

TOPAC_Kuwahara.pdf

47 Recent Progress of DarkSHINE R&D

Speaker: Yifan Zhu (Tsung-Dao Lee Institute&School of Physics and Astronomy, Shanghai Jiao Tong Univ. (CN))

TOPAC_DarkDHINE_ZhuYifan.pdf

48 Inelastic Dirac Dark Matter in U(1)_B-L

Speaker: Zhi-Long Han (University of Jinan)

IDDM_HZL.pdf

49 Observation of faint dwarf galaxies and fuzzy dark matter

Speaker: Yu-Ming Yang (Institute of High Energy Physics, CAS)

Observation_of_Faint_Dwarf_Galaxies_and_Fuzzy_Dark_Matter.pdf

Parallel Session 4b: Cosmology

Convener: Tao Liu (HKUST)

50 Leptogenesis from Axion Inflation with B-L magnetic fields

Speaker: Kohei Kamada (HIAS UCAS)

KK_0608TOPAC.pdf

51 Interpreting Cosmic Birefringence and DESI Data with Evolving Axion in LambdaCDM

Speaker: Yu-Cheng Qiu (Tsung-Dao Lee Institute)

TOPAC_Qiu.pdf

52 Inflation, reheating and next generation CMB experiments

Speaker: Lei Ming (South China Normal University)

TOPAC2025_LeiMing.pdf

53 Cosmological Non-Gaussianity from Neutrino Seesaw Mechanism

Speaker: Jingtao You (Shanghai Jiao Tong University)

游景涛topac2025.pdf

Poster Session & Dinner

54 Relic density and temperature evolution of a light dark sector

Speaker: Xin-Chen Duan (Purple Mountain Observatory)

55 近30年地磁变化对低高度中能质子通量的影响

Speaker: Chengxin Guo (西藏大学)

56 Early-Universe Phase Transitions and Gravitational Waves in U(1)_X Scalar Dark Matter Models

Speaker: Qiwei Liang (Beijing University Of Technology)

57 Dynamical nonlinear tails in Schwarzschild black hole ringdown

Speaker: Sabeela Shah (City University of Hong Kong)

58 Cosmological Non-Gaussianity from Neutrino Seesaw Mechanism

Speaker: Linghao Song (Shanghai Jiao Tong University)

59 Scrutinizing the impact of the solar modulation on antiproton excess

Speaker: Xiao Wang (Purple Mountain Observatory)

60 Exploring sub-GeV dark matter via s-wave, p-wave, and resonance annihilation with CMB data

Speaker: Yu-Ning Wang (Purple Mountain Observatory)

61 Searching accretion-enhanced dark matter annihilation signals in the Galactic Centre

Speaker: Meiwen Yang (南京师范大学/中国科学院紫金山天文台)

62 Degeneracy Enhancement of Neutron Oscillation in Neutron Star

Speakers: Qi-Heng Wang, Xuan-Ye Fu, Zi-Yang Guo

Monday 9 June

Parallel Session 5a: Neutrino

Convener: Yongchao Zhang (Southeast University)

63 Sterile neutrino oscillations with a crossing-width term

Speaker: Yi-Lei Tang (中山大学)

SterileNeutrinoOscillation.pdf

64 Neutrino Impostors: Resolving Mass Tensions with Strongly Self-Interacting Dark Radiation

Speaker: Christina Gao

ChristinaGao_Guangzhou_25.pdf

65 Neutrino effective mass from scalar nonstandard interactions

Speaker: Feng-Zhi Chen (fzchen@jnu.edu.cn)

FengZhiChen_neutrino_mass.pdf

66 Implications of Ultra-high-energy neutrino events on neutrino self-interactions

Speaker: Yuxuan He (City University of Hong Kong)

nuSI_KM3NeT_n.pdf

67 Phenomenology of a Pati-Salam Model spontaneously broken by Higgs fields in fundamental representations

Speaker: Ruiwen Ouyang (HIAS, UCAS)

ruiwen talk 6-9.pdf

Parallel Session 5b: Astrophysics

Convener: Long-Bin Chen (Guangzhou University)

68 Blazar-Boosted Dark Matter: Novel Signatures via Elastic and Inelastic Scattering

Speaker: Jin-Wei Wang (UESTC)

BBDM.pptx

69 Towards improvements of detection strategy for ultra-high-energy particles with the 3rd effect of radio emission

Speaker: Chao Zhang (Nanjing University)

Chao.Zhang.pdf

70 基于LHAASO对宇宙中暂现源和耀发现象的多波段多信使研究

Speaker: Bing T. Zhang (中国科学院高能物理研究所)

Guangzhou-multimessenger.pdf

71 Detecting Stars Darker Than Black Holes

Speaker: Kilar Zhang (Shanghai University)

SYSU KILAR.pdf

72 Inverted hadron-quark phase transition and its astrophysical implications

Speaker: Chen Zhang (Hong Kong University of Science and Technology)

CZ_TOPAC2025.pdf

10:10 Break: Coffee

Parallel Session 6a: Flavor & Field Theory

Convener: Xiao-Dong Ma (South China Normal University)

73 B-meson FCNC decays as a probe of light Dark Matter

Speaker: Xing-Bo Yuan

slides.pdf

74 Application of generalized partial wave amplitude in effective field theory

Speaker: Haolin Li (Sun Yat-Sen University)

TOPAC2025_Haolin.pdf

75 Unitarity violation and PT symmetry in Yang-Mills evanescent operators

Speaker: Ke Ren (Sun Yat-sen University)

250609-KeRen.pdf

76 Significance of explicit symmetry breaking on primordial black holes in classically scale-invariant theories

Speaker: He-Xu Zhang

Hexu_Zhang_TOPAC2025.pdf

Parallel Session 6b: Gravity

Convener: Jin-Wei Wang (UESTC)

77 Special and General Relativity Consequences of the Scalar Gravitational Field

Speaker: Hai-Chao Zhang (Shanghai Institute of Optics and Fine Mechanics, CAS)

HaiChaoZhang_pptTOPAC2025.pdf

78 Black hole destabilization and non-minimally coupled vector fields

Speaker: Sebastian Garcia-Saenz (Southern University of Science and Technology)

Sebastian-TOPAC2025.pdf

79 Vanishing of non-linear black hole Love numbers

Speaker: Sam S. C. Wong (City University of Hong Kong)

TOPAC25.pdf

80 Karmarkar-Tolman Embedded Charged Anisotropic Stars in f(R) Gravity

Speaker: Waheed Ur Rahman (Hunan University)

Gravity 3rd(2025).pptx

11:50 Lunch

Plenary Session 5

Convener: Shao-Feng Ge (TDLI-SJTU)

81 Final results from the Fermilab Muon g-2 experiment

Speaker: Kim Siang Khaw (TDLI/SJTU)

TOPAC2025_Khaw_20250604.pdf

82 B→Kνν anomaly, dark matter, and hyperon CP violation

Speaker: Jusak Tandean

J_Tandean_TOPAC2025_talk.pptx

14:50 Break: Coffee

Plenary Session 6

Convener: Xiao-Gang He

83 Louder Gravitational Wave from Chemical Potential Driven Dark Chiral PT

Speaker: Zhaofeng Kang (华中科技大学(HUST))

Kang_dark_μ.pdf

84 Searching for Axion-Like Particles with X-ray Observations of Alpha Centauri

Speaker: Yue-Lin Sming Tsai (Purple Mountain Observatory)

Tsai_ALP_TOPAC2025.pdf

Closing