MeV Gamma-ray Science Workshop 2026

13 Nov 2026, 08:30 → 15 Nov 2026, 19:30 Asia/Shanghai

Room A104, Kechuang Building (科创大厦A104) (Suzhou)

The MeV Gamma-ray Science Workshop 2026 will be held in Suzhou, China (Nanjing University Suzhou Campus) from November 13 to 15, 2026, hosted by the Institute of High Energy Physics, China and Nanjing University.

The MeV band remains one of the most under-explored windows in astrophysics. This workshop aims to bring together experts from the MeV gamma-ray community to shape the future of the field, driven by next-generation observation facilities. The meeting will be highly discussion-driven, featuring a format of in-person presentations and working group discussions.

The core objectives for this workshops are:

• Finalize the Science White Paper: Review and present sectional drafts to consolidate and finalize the comprehensive MeV white paper for upcoming submission.
• Refine Key Science Objectives: Engage in deep discussions on the proposed science to identify and highlight the unique, high-impact goals for future MeV observations.
• Bridge Science and Instrumentation: Discuss instrument designs to ensure future payloads can successfully fulfill these proposed scientific goals.

Schedule: Arrive (Registration): 13th November (Friday). Departure: 16th November (Monday). The conference will be held from the 14th November (Saturday) to 15th November (Sunday).

The workshop sessions will be conducted in English, and we anticipate ~50 participants to join us. There is no registration fee. Coffee breaks and meals will be provided. Interested participants should complete the registration form by Friday Oct 23, 2026. Lodging will be arranged in a unified manner and the expenses are to be covered by the participants themselves.

 

Organizing Committee

Xilu Wang (Institute of High Energy Physics) 

Ping Zhou (Nanjing University) 

Roland Diehl (Max Planck Institut für extraterrestrische Physik, Garching)

Hua Feng (Institute of High Energy Physics) 

Ruizhi Yang (University of Science and Technology of China)

Qiang Yuan (Purple Mountain Observatory)

Xiaoting Fu (Purple Mountain Observatory)

Mingyu Ge (Institute of High Energy Physics) 

Long Ji (Sun Yat-Sen University)

Bing Liu (Purple Mountain Observatory)

会议通知-盖章版.pdf

Friday 13 November

14:00 → 18:30 Registration

18:30 → 20:00 Dinner

Saturday 14 November

08:30 → 09:00 Registration

09:00 → 09:15 Opening • Welcome address

Convener: Hua Feng

09:15 → 10:45 Session 0: Introduction (Chair: Ping Zhou)

09:45 Accretion astrophysics and MeV science

Speaker: Felix Aharonian

10:15 MeV continuum emissions, positron astrophysics, and fundamental questions

Speaker: Thomas Siegert

10:45 → 11:15 Group Photo & Coffee Break

11:15 → 12:00 Session 1: Stellar evolution, stellar explosions, and cosmic nucleosynthesis: Chair: Xilu Wang

Conveners: Min Fang, Xiaoting Fu, Tianshu Wang

11:15 Distribution of the ISM and star formation in the solar neighborhood

Speaker: Min Fang

11:30 From stellar physics uncertainties to MeV science requirements

Speaker: Xiaoting Fu

11:45 Nucleosynthetic analysis of three-dimensional core collapse supernova simulations

Speaker: Tianshu Wang

ccsn.pptx

12:00 → 14:00 Lunch

14:00 → 14:30 Session 1: Stellar evolution, stellar explosions, and cosmic nucleosynthesis: Chair: Xiaoting Fu

Conveners: Xilu Wang (Institute of High Energy Physics, Chinese Academy of Sciences), Ping Zhou

14:00 MeV emissions from rare explosions

Speaker: Xilu Wang

14:15 ⁴⁴Ti in Supernova Remnants: Current Constraints on Supernova Explosions and Future Prospects

Speaker: Ping Zhou

14:30 → 15:15 Progress of the white paper in “Stellar evolution, stellar explosions, and cosmic nucleosynthesis” & Discussions: key science topics for session 1

Conveners: Xiaoting Fu, Xliu Wang

15:15 → 15:45 Coffee Break

15:45 → 17:00 Session 2: Cosmic rays and the interstellar medium: Chair: Ruizhi Yang

Conveners: Thomas Bisbas (Zhejiang Lab), Kenny Chun Yu Ng, Yunzhi Shen, Jiahao Liu, Feng Cong

15:45 Astrochemical imprint of MeV cosmic-rays

Speaker: Thomas Bisbas

16:00 Cosmic-ray induced solar gamma rays in the MeV band

Speaker: Kenny Chun Yu Ng

16:15 On the MeV Nuclear De-excitation Line Emission from the Vela Supernova Remnant Region

Speaker: 蕴之 沈 (南京大学)

16:30 Precise measurement of pion-bump structure using future MeV gamma-ray detectors

Speaker: Jiahao Liu

16:45 Hard photon contribution to the MeV gamma-rays

Speaker: Feng Cong

17:00 → 17:45 Progress of the white paper in “Cosmic rays and the interstellar medium” & Discussions: key science topics for session 2

Conveners: Bing Liu, Ruizhi Yang

18:05 → 20:05 Banquet

Sunday 15 November

09:00 → 10:15 Session 3: Compact objects: Chair: Yang Chen

Conveners: Long Ji, Stephen C.-Y. Ng, Yu-Fei Huang, Jin Zhang, Chichuan Jin, Zhenghang Yu

09:00 MeV emission from X-ray binaries

Speaker: Long Ji

09:15 MeV studies of pulsar wind nebulae

Speaker: Stephen C.-Y. Ng

09:30 MeV gamma-ray Emission in AGN

Speakers: Jin Zhang, Yu-Fei Huang

09:45 Study and Prospect of MeV Emission from TDEs

Speaker: Chichuan Jin

10:00 MeV spectral line in Gamma-ray Bursts

Speaker: Zhenghang Yu

10:15 → 11:00 Progresses of “Compact Objects” for MeV Science & Discussions: key science topics for session 3

Conveners: Long Ji, Mingyu Ge

11:00 → 11:30 Coffee Break

11:30 → 12:30 Session 4: Fundamental physics: Chair: Qiang Yuan

Conveners: Yue-Lin Sming Tsai, Bin Zhu, Chen Sun, Mengjiao Xiao

11:30 Light thermal dark maaer in minimal models

Speaker: Yue-Lin Sming Tsai

11:45 Hawking radiation from primordial black holes: prospects in the MeV band

Speaker: Bin Zhu

12:00 Light new physics search in the gamma ray sky

Speaker: Chen Sun

12:15 Development of A Novel Compton Camera for MeV Gamma Ray Measurement

Speaker: Mengjiao Xiao

12:30 → 13:30 Lunch

13:30 → 14:15 Progress of the white paper in “Fundamental physics” & Discussions: key science topics for session 4

Convener: Qiang Yuan

14:15 → 14:45 Session 5: MeV instruments

Convener: Thomas Siegert

14:15 MeV gamma-ray telescopes and introduction to COSI

Speaker: Thomas Siegert

14:45 → 14:55 Coffee Break

14:55 → 16:10 Session 5: MeV instruments

Conveners: Chuan Yue, Daikang Yan, Jiahuan Zhu, Ruizhi Yang, Tiangang Zhang

14:55 MeVGRO introduction

Speaker: Tiangang Zhang

15:10 Progress on in-orbit background evolution modeling for the MASS-Cube Compton telescope

Speaker: Jiahuan Zhu

15:25 PAIRS: a Positron Annihilation Imaging high-Resolution Spectrometer for the Galactic Center 511 keV Line

Speaker: Daikang Yan

15:40 MeGat introduction

Speaker: Ruizhi Yang

15:55 Very Large Area gamma-ray Space Telescope

Speaker: Chuan Yue

16:10 → 16:20 Workshop Summary: unique & key science objectives and needs for MeV missions

Conveners: Hua Feng, Roland Diehl

16:20 → 18:00 Open Discussion

18:00 → 19:30 Dinner