History

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.

Chronology of POSMOL (2005-present)

• POSMOL 2023 – Notre Dame, USA, https://sites.nd.edu/posmol2023conference/.
  ・XXI International Workshop on Low-Energy Positron and Positronium Physics,
  ・XXIII International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical Issue of the European Physical Journal D (EPJ D) on “Electron and positron interactions and their applications: a tribute to Professor Michael Brunger”, Eur. Phys. J. D 79, 16 (2025), Springer Nature Link, 27 articles in total.
• POSMOL 2021 – virtual meeting, Notre Dame, USA, https://sites.nd.edu/posmol2021conference/.
  ・XXII International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical Issue of the European Physical Journal D (EPJ D) on “Molecular collisions, photoionization and dynamics: honouring Professor Vincent McKoy”, Eur. Phys. J. D (2022), SpringerLinks, 30 articles in total.
• POSMOL 2019 – Belgrade, Serbia, http://posmol2019.ipb.ac.rs/.
  ・XX International Workshop on Low-Energy Positron and Positronium Physics,
  ・XXI International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical issue: Low-Energy Positron and Positronium Physics and Electron-Molecule Collisions and Swarms (POSMOL 2019), Eur. Phys. J. D (2020), SpringerLinks: 21 articles + 2 articles, Editorial.
• POSMOL 2017 – Magnetic Island, Queensland, Australia, http://posmol2017.edu.au/ (via archive.org).
  ・XIX International Workshop on Low-Energy Positron and Positronium Physics,
  ・XX International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical issue: Low Energy Positron and Electron Interactions, Eur. Phys. J. D (2018), SpringerLink.
• POSMOL 2015 – Lisbon, Portugal, http://eventos.fct.unl.pt/posmol2015.
  ・XVIII International Workshop on Low-Energy Positron and Positronium Physics,
  ・XIX International Symposium on Electron-Molecule Collisions and Swarm.
  Proceedings: Topical issue: Advances in Positron and Electron Scattering, Eur. Phys. J. D (2016), SpringerLink, Editorial.
• POSMOL 2013 – Kanazawa, Japan, http://www.rs.tus.ac.jp/posmol2013/ (via archive.org).
  ・XVII International Workshop on Low-Energy Positron and Positronium Physics,
  ・XVIII International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical issue: Electron and Positron Induced Processes, Eur. Phys. J. D (2014), SpringerLink, Editorial.
• POSMOL 2011 – Maynooth, Ireland, http://physics.nuim.ie/posmol2011/ (via archive.org).
  ・XVI International Workshop on Low-Energy Positron and Positronium Physics,
  ・XVII International Symposium on Electron-Molecule Collisions and Swarms.
  Proceedings: Topical issue: Electron/Positron Collision, Eur. Phys. J. D (2012), SpringerLink, No editorial?
• POSMOL 2009 – York, Canada, http://sit.yorku.ca/posmol09/ (via archive.org).
  ・XV International Workshop on Low-Energy Positron and Positronium Physics,
  ・XVI International Symposium on Electron-Molecule Collisions and Swarms.
  e+ Proceedings: J. Phys. Conf. Ser. 199 011001-012025 (2010), Editorial,
  e- Proceedings: J. Phys. Conf. Ser. 204 012001-012008 (2010).
• POSMOL 2007 – Reading, England.
  ・XIV International Workshop on Low-Energy Positron and Positronium Physics,
  ・XV International Symposium on Electron-Molecule Collisions and Swarms.
  e+ Proceedings: Nucl. Instr. and Meth. B, 266(3) 351-540, Editorial,
  e- Proceedings: J. Phys. Conf. Ser. 115 012001-012020 (2008).
• POSMOL 2005 – Campinas, Brazil.
  ・XIII International Workshop on Low-Energy Positron and Positronium Physics www.positron05.unicamp.br.
  ・XIV International Symposium on Electron-Molecule Collisions and Swarms (EMS) www.ems05.unicamp.br.
  e+ Proceedings: Nucl. Instr. and Meth. B, 247(1) 1-154, Editorial, Conference Report Phys. Scr. 74 C37 (2006),
  e- Proceedings: Conference Report Phys. Scr. 74 C7 (2006).

The two conferences were joined for the first time in 2005, as described by Sanchez et al. Nucl. Instr. and Meth. B, 247(1) vii.

History of international workshops on positron collisions in gases (1981-2003)

• XII International Workshop on Low-Energy Positron and Positronium Physics – POSITRON 03, Sandbjerg, Denmark, 19-21 July 2003.
  Proceedings: Nucl. Instr. and Meth. B, 221 1-242 (2004), Editorial.
• XI International Workshop on Low-Energy Positron and Positronium Physics, Santa Fe, New Mexico, 2001.
  Proceedings: Nucl. Instr. and Meth. B, 192(1-2) 1-238 (2002), Editorial.
• X International Workshop on Low-Energy Positron and Positronium Physics – Positron Workshop 99, KEK, Tsukuba, Japan, 1999.
  Proceedings: Nucl. Instr. and Meth. B, 171(1-2) 1-250, Preface.
• IX International Workshop on Low-Energy Positron and Positronium Physics, Nottingham, UK, 1997.
  Proceedings: Nucl. Instr. and Meth. B, 143(1-2) 1-232 First Paper.
• VIII International Positron Workshop, Vancouver, Canada, 1995.
  Proceedings: Canadian Journal of Physics, 1996, 74(7-8) 313-563 First Paper.
• VII International Workshop on Positron Interactions with Atoms, Molecules and Clusters, Bielefeld, Germany, 1993.
  Proceedings: Hyperfine Interactions, 1994, 89, 1-262, Preface.
• VI International Workshop on Positron Interactions with Gases, Sydney, Australia, 1991.
  Proceedings: Hyperfine Interactions, 1992, 73(1-2) 1-228, Preface. Preface (via DOI).
• V Workshop on Annihilation in Gases and Galaxies, Greenbelt, Maryland, USA 1989.
  Proceedings: “Annihilation in Gases and Galaxies“, NASA Conference Publication 3058 (1990).
• IV NATO Advanced Research Workshop on Atomic Physics with Positrons, London, UK, 1987.
  Proceedings: “Atomic Physics with Positrons“, Springer e-book, Google books.
• III International Workshop on Positron (Electron)-Gas Scattering, Detroit, Michigan, 1985.
  Proceedings: World Scientific “Positron (Electron)-Gas Scattering“, Catalogue Info, Amazon 2nd-hand.
• II NATO Advanced Research Workshop on Positron Scattering in Gases, Egham, UK, 1983.
  Proceedings: “Positron scattering in gases“, Springer e-book Google books.
• I International Conference on Positron Scattering and Annihilation in Gases, Toronto, Canada, 1981.
  Proceedings: Canadian Journal of Physics, 1982, 60(4) 458-617, Foreword.

History of electron molecule swarm conferences (1985-2003)

• XIII International Symposium on Electron-Molecule Collisions and Swarms, Pruhonice (near Prague), Czech Republic, 2003, http://ems2003.cuni.cz/.
• XII International Symposium on Electron-Molecule Collisions and Swarms, Lincoln, NE, USA, 2001, Web Archive.
• XI International Symposium on Electron-Molecule Collisions and Swarms, Tokyo, Japan, 1999.
• X – Engelberg, Switzerland, (Chair Michael Allen), 1997.
• IX – Berkeley, CA, USA, (Chair Tom Rescigno), 1995.

There were two Satellite conferences in 1993:

• VIII International Seminar on Electron and Ion Swarms [Symposium on], Trondheim, Norway, 1993.
  Proceedings: Phys. Scr. T53 (2004), Introduction.
• VIII International Symposium on Electron Collisions with Molecules, Clusters, and Surfaces, Royal Holloway, University of London, UK (Chair Leslie Morgan).
  Proceedings: “Electron Collisions with Molecules, Clusters, and Surfaces“, eds. H. Ehrhardt and L. A. Morgan, Plenum, New York, 1994, SpringerLink, Book.
• VII Gold Coast, Australia, 1991.
• VI New Haven, CT, USA, Chair Arvid Herzenberg, 1989.
  Proceedings: AIP Conference Proceedings “Aspects of Electron-Molecule Scattering and Photoionization“, 204, Ed. Arvid Herzenberg, Plenum, New York, 1990.
• V International Symposium on Electron-Molecule Scattering and Photoionization, SERC Daresbury Laboratory, Warrington, UK, 1987.
  Proceedings: “Electron-Molecule Scattering and Photoionization“, Editors: P.G. Burke, J.B. West, SpringerLink.
• IV International Swarm Seminar and the Electron-Molecule Collisions Symposium – Symposium on Swarm Studies and Inelastic Electron-Molecule Collisions. Tahoe City, California, USA, 1985.
  Proceedings: “Swarm Studies and Inelastic Electron-Molecule Collisions“, SpringerLink.

As noted in the 1985 proceedings introduction the conferences prior to this were split.

Previous to this, the Electron-Molecule Collisions Symposium and the International SWARM seminar – Electron and ion swarms, were held as separate meetings.