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Welcome

POSMOL2025 is now officially closed. The next POSMOL will take place in Czech Republic in 2027.

POSMOL2025 participants:


Dear colleagues,
It is our pleasure to invite you to participate in POSMOL 2025.
The conference will be held in Matsue, Japan, on August 8-10, 2025, starting with the Welcome Reception on Thursday evening August 7, 2025.
The POSMOL will continue this year as a joint meeting of the International Workshop on Low-Energy Positron and Positronium Physics and the International Symposium on Electron-Molecule Collisions and Swarms. It is a satellite meeting of the International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC 2025) to be held in Sapporo, Japan from July 29 to August 5, 2025.
The POSMOL conference covers a wide range of research topics related to posistron, electron, positronium, and antimatter interactions with particles, atoms, molecules, and complex systems, and related subjects. The meeting will continue the tradition of a scientific forum at which a diverse group of scholars from around the world will have an opportunity to share their theoretical and experimental findings, ideas, innovations, and methodologies through formal and informal discussions to advance scientific knowledge and understanding of the fundamental, collisional interactions. (Final conference circular: PDF)

POSMOL 2025

News

2025. 08.

POSMOL2025 is now officially closed. The next POSMOL will take place in Czech Republic in 2027.

2025. 08. 15

All participants are invited to submit papers to the Topical Collection of the EPJ D. The deadline for submission is December 15, 2025.

2025. 08. 01.

Abstract book is uploaded.

PDF

2025. 08. 01.

Poster Prize: We will award prizes to outstanding posters from trainees supported by EPJD.

2025. 07. 25.

Final conference circular is uploaded.

PDF

2025. 07. 25.

All the program is fixed.

PDF

2025. 07. 20.

The program of the POSMOL2025 is fixed.

PDF

2025. 07. 06.

The LOC decided to provide financial support for part of the registration fee for the trainee, who gets NO financial support from your supervisor, your university, your institute, or company. If you wish financial support from LOC, please send the information below with a recommendation letter from your supervisor to posmol2025@yokohama-cu.ac.jp by July 25, 2025.


  1. 1. Your name
  2. 2. Your country
  3. 3. Your grade (i.e., Master 2nd year, Ph. D 1st year, etc)
  4. 4. Recommendation letter from your supervisor with an attached file. A recommendation letter should include a sentence stating that the candidate will receive no other financial support.

2025. 07. 06.

The registration deadline via the JTB system is July 20, 2025 (Japan Standard Time). After July 21, registration will be accepted at the POSMOL2025 conference (on-site) with only Japanese yen.

2025. 06. 15.

Due to many of your requests, we are extending the deadline for POSMOL2025 abstract submission to June 22nd, 2025 (Japan Standard Time).

2025. 06. 09.

We have been notified that there have been spam emails regarding accommodations at Matsue during the conference. Please do not respond to these types of emails, as they are not from us.

From: sales@aaaa_travel.aa
Subject: Your participation in Matsue, Japan August 2025

Hello Dr. Professor,

Greetings from Gulliver's Travel.

This email is in regards to your participation in Matsue, Japan August
2025, Kindly inform us with the dates for your stay in order to help
reserve your accommodation space with the hotel.

Please note that our reservations are flexible for any requested
modifications up to 14 days before your check-in date, You will find
below more information about our polices in our website link.

Appreciate your earliest response.

Best Regards,
Sales Team

Our Team Available for any assistance or inquires 24/7.
Our contact information

2025. 04. 14.

The registration, accommodation, and submission for abstract pages are now open. We apologize for the delay. Due to the "inter-high school" sports held in the Chugoku region in Japan, accommodations are very crowded, so please make your reservations through the official accomodation page!

2025. 03. 15.

The conference schedule posted on Program.

PDF

2025. 03. 15.

Abstract submission for talks and posters is due 23:59(JST), June 15th, 2025. Please follow the supplied template. Registration and Abstract submission will open at the end of March.

WORD

2025. 02. 28.

The list of plenary speakers and invited speakers is now available.

2024. 10. 01.

The 1st flyer can be downloaded.

PDF

2024. 09. 01.

Website is now open.

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Program

Welcome reception: Evening on August 7 (Thu), 2025
The POSMOL2025 conference will begin in the morning on August 8 (Fri), 2025, and end at noon on August 10 (Sun), 2025.
Banquet: August 9 (Sat), 2025
Workshop in honour of Professor GUSTAVO GARCIA will begin from 2 PM on August 10 (Sun), 2025.

Schedule Teaceremony and Banquet Gustavo Workshop
POSMOL2025-Schedule booklet Book of abstracts (with PWD)

PL – plenary talks (40 min + 5 min discussion), J – invited talks (25 min + 5 min discussion) at joint sessions, E, P – invited talks (25 min + 5 min discussion) at two parallel sessions, HT – hot topics (15 min including discussion)

International Advisory Committee Meeting at room 403 (4th floor) during lunchtime on August 9.

Oral presentation

You can use your own PC to show your viewgraphs using an LCD projector.

Poster presentation

We will provide the poster board (W 1200 mm x H 2100 mm), so that you should prepare your poster with A0 vertical dimension (W 841 mm x H 1189 mm). Pins and adhesive tape are provided to post the posters. Please post your poster from 1 pm on August 8 (Fri) to 4 pm on August 9 (Sat).

Poster prizes

We will award prizes for outstanding posters of trainees. The award will be announced at the conference dinner, held in the evening on August 9 (Sat).

Speakers

The plenary and invited speakers are listed below.

Plenary Speakers

Ann Orel (UC Davis, USA)
Marcio Varella (Universidade de São Paulo, Brazil)
Sylwia Ptasinska (University of Notre Dame, USA)
Yasuhiko Sentoku (Osaka University, Japan)

Invited Speakers

Joint session

Sasa Dujko (University of Belgrade, Serbia)
Koji Michishio (National Institute of Advanced Industrial Science and Technology, Japan)
Chris Greene (Purdue University, USA)
April Cridland Mathad (CERN, ALPHA/ALPHA-g, Switzerland)
Martin Cizek (Charles University, Czech Republic)
Fabris Kossoski (CNRS, France)
Nicolas Sisourat (Sorbonne Université, France)
Monica Mendes (Universidade Nova de Lisboa, Portugal) sponsored lecture
Gleb Gribakin (Queen's University Belfast, UK)
Pauline Comini (Centre d’Etudes de Saclay, France)
Adam Deller (Max Planck IPP, Germany)
Greg Boyle (James Cook University, Australia)
Stephan Denifl (University of Innsbruck, Austria)

Electron-Molecule Collisions and Swarms

Ana Isabel Lozano (Université Toulouse III, France)
Vaibhav S. Prabhudesai (Tata Institute of Fundamental Research, India)
Barbora Kocábková (Czech Academy of Sciences, Czech Republic)
Dale Muccignat (James Cook University, Australia)

Low-Energy Positron and Positronium Physics

Andres Reyes (Universidad Nacional de Colombia, Colombia) sponsored lecture
Sandra J. Ward Quintanilla (University of North Texas, USA)
Soumen Ghosh (Ahmedabad University, India)
Yugo Nagata (Tokyo University of Science, Japan)
Dan Murtagh (Stefan Meyer Institute for Subatomic Physics, Austria)

Registration

Regular and Trainee registrations include conference materials, welcome reception, banquet, 3 lunches, and coffee breaks. Accompanying Person registration includes a reception and banquet. (Before June 30, 2025 / After July 1, 2025)
The registration deadline via the JTB system is July 20, 2025 (JST). After July 21, registration will be accepted at the POSMOL2025 conference (on-site) with only Japanese yen.

Regular


40,000 yen / 50,000 yen

REGISTER NOW

Trainee

20,000 yen / 30,000 yen

REGISTER NOW

Accompanying Person

15,000 yen / 20,000 yen

REGISTER NOW
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Abstracts and Papers

Abstract Submission

Abstract submission for talks and posters is due 23:59(JST), June 22nd 15th, 2025. Please follow the supplied template (.docx).

Submitted abstracts if requested during the participant's registration by the deadline will be considered for presentation in the "Hot Topics" session of the meeting.

The poster board size is 1200 (horizontal) x 2100 (vertical) mm.

SUBMIT NOW

EPJ D Topical Collection

We are delighted to invite all participants to submit papers to the Topical Collection of the European Physical Journal D (EPJ D) on "Perspectives and Recent Advances in Electron, Swarms, Positron and Positronium Physics".

Guest Editors: Paulo Limão-Vieira, Márcio Bettega, Dragana Marić, Masanori Tachikawa, Marco Lima and David B. Cassidy

Deadline for submission: December 15, 2025

Submission Web Page of EPJD: https://www.editorialmanager.com/epjd/

Venue

POSMOL 2025 will be held at Kunibiki Messe (Shimane Prefectural Convention Center) in Matsue, Shimane, Japan.

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Matsue, the capital of Shimane Prefecture, is a city rich in history, culture, and breathtaking scenery. Known as the "City of Water," Matsue offers visitors a perfect blend of traditional Japan and natural beauty. For the participants of this International Conference and their families, Matsue City will provide a rich experience that will make your stay unforgettable.

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Travel

There are two airports (Yonago and Izumo) available to get to Matsue city. Visit HERE for the information how to travel to Matsue. For ICPEAC 2025 participants, it is noted that direct one flight (JAL) a day from Sapporo (ICPEAC) to Izumo is available only on Sundays, Mondays, Wednesdays and Fridays in August.

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If you are not flying, you can visit from Osaka or Tokyo via Okayama on the Shinkansen and JR lines.

Tokyo sta. → (Shinkansen: Nozomi 3h20min.) → Okayama sta. → (JR Line Ltd. Express Yakumo 2h40min.) → Matsue sta.

Osaka sta. → (JR Line 5min.) → Shin-Osaka → (Shinkansen: Nozomi 50min.) → Okayama sta. → (JR Line Ltd. Express Yakumo 2h40min.) → Matsue sta.

Accommodation

Matsue City is not a very large city, so there are not many hotels. In addition, it is difficult to make reservations because the Inter-High School Sports Festival, a sporting event for high school students, is held during the same period. Early reservations are recommended. The JTB reservation site below is convenient.

POSMOL2025 Official Information
JAPANiCan.com for Matsue JAPANiCan.com for Izumo

History

The POSMOL meeting consists of two research areas in quantum physics and was first held in Campinas, Brazil. It is a combination of two workshops:

  • Low-Energy Positron and Positronium Physics (the POS)
  • Electron-Molecule Collisions and Swarms (and the MOL)

POSMOL is a satellite meeting of the ICPEAC conference (ICPEAC 2025 will be held in Sapporo, Japan). This page presents a brief history of the combined meetings as well as each individual workshop before that.

Read More

Supporters

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Grant-in-Aid for Scientific Research(S) (Spin-polarized positron beam)

Grant-in-Aid for Transformative Research Areas (A) (Quantum matter science)

Grant-in-Aid for Scientific Research(A) (Positronium-graphene collision)

Japanese Positron Science Society

The Atomic Collision Society of Japan

Committees

Local Organizing Committee

Positron

Masanori Tachikawa (Yokohama City Univ.) LOC co-chair
Akira Ishida (AIST)
Yasushi Kino (Tohoku Univ.)
Koji Michishio (AIST)
Yasuyuki Nagashima (Tokyo Univ. of Science)
Yugo Nagata (Tokyo Univ. of Science)
Takuma Yamashita (Tohoku Univ.)

Electron

Masashi Kitajima (Science Tokyo) LOC co-chair
Masamitsu Hoshino (Sophia Univ.)
Yasuhiro Sakai (Toho Univ.)
Kohki Satoh (Muroran Institute of Tech.)
Hajime Tanuma (Tokyo Metropolitan Univ.)

International Advisory Committee

Positron

Dermot Green (Queen’s University Belfast) Co-chair
Dmitry Fursa (Curtin University, Australia)
Takuma Yamashita (Tohoku University, Japan)
Alessandra Souza Barbosa (Universidade Federal do Paraná, Brazil)
Eva Stenson (Max-Planck-Institut für Plasmaphysik, Germany)
Dirk Peter van der Werf (Swansea University, United Kingdom)

Electron

Jimena Gorfinkiel (The Open University) Co-chair
Dragana Maric (Institute of Physics Belgrade, Serbia)
Roman Čurik (J. Heyrovsky Institute of Physical Chemistry, Czech Republic)
Romarly da Costa (Federal University of ABC, Brazil)
Janina Kopyra (University of Siedlce, Poland)
Paulo Limão-Vieira (Universidade NOVA de Lisboa, Portugal)
Sylwia Ptasinska (University of Notre Dame, USA)
Kohki Satoh (Muroran Institute of Technology, Japan)
Ronald D. White (James Cook University, Australia)


POSMOL 2025