About Interactions

The Interactions Collaboration seeks to support the international science of particle physics and to set visible footprints for peaceful collaboration across all borders.

The Interactions.org website is designed to serve as central resource for information about particle physics, including press releases, articles, news, event listings and images. (It seems fitting that the World Wide Web, which came from particle physics, should have a role in supporting the science that created it.)

This website was developed and is jointly maintained by the Interactions Collaboration, whose members represent the world's particle physics laboratories in Europe, North America and Asia, with funding provided by science funding agencies of many nations.

Interactions collaborators include:

  • ARC Centre of Excellence for Particle Physics at the Terascale

    The ARC Centre of Excellence for Particle Physics at the Terascale (CoEPP) is a collaborative research venture between the universities of Melbourne, Adelaide, Sydney and Monash. CoEPP fosters links between experimental and theoretical particle physics, further links Australian research to significant international research centres, establishes strong Australian grid and cloud computing expertise, and further develops accelerator technologies in Australia.



  • Argonne National Laboratory

    Argonne is a multidisciplinary science and engineering research center, where “dream teams” of world-class researchers work alongside experts from industry, academia and other government laboratories to address vital national challenges in clean energy, environment, technology and national security.


  • Brookhaven National Laboratory

    We advance fundamental research in nuclear and particle physics to gain a deeper understanding of matter, energy, space, and time; apply photon sciences and nanomaterials research to energy challenges of critical importance to the nation; and perform cross-disciplinary research on climate change, sustainable energy, and Earth’s ecosystems.  


  • Deutsches Elektronen-Synchrotron

    DESY is one of the world’s leading accelerator centres. Researchers use the large-scale facilities at DESY to explore the microcosm in all its variety – from the interactions of tiny elementary particles and the behaviour of new types of nanomaterials to biomolecular processes that are essential to life. The accelerators and detectors that DESY develops and builds are unique research tools. The facilities generate the world’s most intense X-ray light, accelerate particles to record energies and open completely new windows onto the universe.

  • European Organization for Nuclear Research

    At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. They use the world's largest and most complex scientific instruments to study the basic constituents of matter – the fundamental particles. The particles are made to collide together at close to the speed of light. The process gives the physicists clues about how the particles interact, and provides insights into the fundamental laws of nature.

  • Fermi National Accelerator Laboratory

    Fermilab is America's particle physics and accelerator laboratory. Founded in 1967, Fermilab drives discovery by investigating the smallest building blocks of matter using world-leading particle accelerator and detector facilities. We also use the universe as a laboratory, making measurements of the cosmos to the mysteries of dark matter and dark energy. Fermilab is located near Chicago, Illinois, and is managed by Fermi Research Alliance, LLC for the U.S. Department of Energy Office of Science.

  • High Energy Accelerator Research Organization

    KEK was established in 1997 in a reorganization of the Institute of Nuclear Study, University of Tokyo (established in 1955), the National Laboratory for High Energy Physics (established in 1971), and the Meson Science Laboratory of the University of Tokyo (established in 1988).

    Scientists at KEK use accelerators and perform research in high-energy physics to answer the most basic questions about the universe as a whole, and the matter and the life it contains.


  • Institut National de Physique Nucléaire et de Physique des Particules

    Founded in 1971, the aim of the National institute of nuclear and particle physics (IN2P3) of the CNRS is to promote and unify research activities in the fields of nuclear physics, particle and astroparticle physics. It coordinates programmes within these fields on behalf of the CNRS and universities, in partnership with CEA.

  • Institute of High Energy Physics, Chinese Academy of Sciences

    The Institute of High Energy Physics (IHEP), a Chinese Academy of Sciences research institute, is China’s biggest laboratory for the study of particle physics. We want to understand the universe better at the most fundamental level – from the smallest subatomic particles to the large-scale structure of the cosmos. We also want to use the knowledge and technology that comes from our research for the good of humanity.

  • IRFU CEA-Saclay laboratory

    IRFU, Institute of Research into the Fundamental Laws of the Universe, is a basic research institute of the CEA's Direction des sciences de la matière,. Its scientific activities cover the fields of astrophysics, nuclear physics, and particle physics. With such a wide range of topics, the institute must, of course, set itself highly ambitious goals.

  • Istituto Nazionale di Fisica Nucleare

    The National Institute for Nuclear Physics (INFN) is the Italian research agency dedicated to the study of the fundamental constituents of matter and the laws that govern them, under the supervision of the Ministry of Education, Universities and Research (MIUR). It conducts theoretical and experimental research in the fields of subnuclear, nuclear and astroparticle physics. All of the INFN’s research activities are undertaken within a framework of international competition, in close collaboration with Italian universities on the basis of solid academic partnerships spanning decades.

  • Joint Institute for Nuclear Research, Dubna

    The Joint Institute for Nuclear Research is an international intergovernmental organization, a world famous scientific centre that is a unique example of integration of fundamental theoretical and experimental research with development and application of the cutting edge technology and university education. The rating of JINR in the world scientific community is very high.

  • Kavli Institute for the Physics and Mathematics of the Universe

    Kavli IPMU is founded as an international research institution addressing fundamental questions about the universe. What is the universe made of? How did it begin, and what is its fate? What are the laws that govern it, and why do we exist in it? These are basic questions for all humanity, as reflected in the thoroughly international and interdisciplinary character of Kavli IPMU. It aspires to become a truly world class institution, and more than half of its members are already international.

  • Laboratori Nazionali del Gran Sasso - INFN

    Gran Sasso National Laboratory (LNGS) is one of the four national laboratories of INFN (National Institute for Nuclear Physics).

  • Laboratory Nazionali di Frascati - INFN

    Built in 1955, the National Laboratory of Frascati (LNF) were the first Italian research facility for the study of nuclear and subnuclear physics with accelerators and are the largest laboratory of the National Institute for Nuclear Physics (INFN), the public body whose mission is theoretical, experimental and technological research in subnuclear, nuclear and astroparticle physics.
    The main characteristic of LNF consists in knowing how to build particle accelerators.

  • Lawrence Berkeley National Laboratory

    In the world of science, Lawrence Berkeley National Laboratory (Berkeley Lab) is synonymous with “excellence.” Thirteen Nobel prizes are associated with Berkeley Lab. Seventy Lab scientists are members of the National Academy of Sciences (NAS), one of the highest honors for a scientist in the United States. Thirteen of our scientists have won the National Medal of Science, our nation’s highest award for lifetime achievement in fields of scientific research.

  • Nationaal Instituut voor Subatomaire Fysica

    Nikhef is the Dutch National Institute for Subatomic Physics. The institute performs research into the elementary building blocks of our Universe, their mutual forces and the structure of space and time. Research at Nikhef focuses on accelerator-based particle physics and astroparticle physics. Nikhef coordinates and leads the Dutch experimental activities in these fields and is a partnership between the Netherlands Organisation for Scientific Research (NWO) and five Dutch universities.

  • Science and Technology Facilities Council

    We are one of Europe's largest multidisciplinary science organisations. We provide funding support for university-based research, innovation and skills development in astronomy, particle physics, nuclear physics, and space science, and we operate a network of National Laboratories across the UK delivering a wide range of science discoveries and technology advances across the physical, life and computational sciences.

  • SLAC National Accelerator Laboratory

    SLAC National Accelerator Laboratory develops and operates some of the world’s premier science facilities, including the first hard X-ray free-electron laser.


    TRIUMF is one of the world’s leading subatomic physics laboratories. It brings together dedicated physicists and interdisciplinary talent, sophisticated technical resources, and commercial partners in a way that has established the laboratory as a global model of success. Its large user community is composed of international teams of scientists, post-doctoral fellows, and graduate and undergraduate students.