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Many-body theory of antimatter interactions with atoms, molecules and condensed matter

Project information

Grant agreement ID: 804383

Status

Ongoing project

  • Start date

    1 February 2019

  • End date

    31 January 2024

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 318 419

  • EU contribution

    € 1 318 419

Hosted by:

THE QUEEN'S UNIVERSITY OF BELFAST

United Kingdom

Objective

The ability of positrons to annihilate with electrons, producing characteristic gamma rays, gives them important use in medicine via positron-emission tomography (PET), diagnostics of industrially-important materials, and in elucidating astrophysical phenomena. Moreover, the fundamental interactions of positrons and positronium (Ps) with atoms, molecules and condensed matter are currently under intensive study in numerous international laboratories, to illuminate collision phenomena and perform precision tests of fundamental laws.

Proper interpretation and development of these costly and difficult experiments requires accurate calculations of low-energy positron and Ps interactions with normal matter. These systems, however, involve strong correlations, e.g., polarisation of the atom and virtual-Ps formation (where an atomic electron tunnels to the positron): they significantly effect positron- and Ps-atom/molecule interactions, e.g., enhancing annihilation rates by many orders of magnitude, and making the accurate description of these systems a challenging many-body problem. Current theoretical capability lags severely behind that of experiment. Major theoretical and computational developments are required to bridge the gap.

One powerful method, which accounts for the correlations in a natural, transparent and systematic way, is many-body theory (MBT). Building on my expertise in the field, I propose to develop new MBT to deliver unique and unrivalled capability in theory and computation of low-energy positron and Ps interactions with atoms, molecules, and condensed matter. The ambitious programme will provide the basic understanding required to interpret and develop the fundamental experiments, antimatter-based materials science techniques, and wider technologies, e.g., (PET), and more broadly, potentially revolutionary and generally applicable computational methodologies that promise to define a new level of high-precision in atomic-MBT calculations.
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Host institution

THE QUEEN'S UNIVERSITY OF BELFAST

Address

University Road Lanyon Building
Bt7 1nn Belfast

United Kingdom

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 318 419

Beneficiaries (1)

THE QUEEN'S UNIVERSITY OF BELFAST

United Kingdom

EU Contribution

€ 1 318 419

Project information

Grant agreement ID: 804383

Status

Ongoing project

  • Start date

    1 February 2019

  • End date

    31 January 2024

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 318 419

  • EU contribution

    € 1 318 419

Hosted by:

THE QUEEN'S UNIVERSITY OF BELFAST

United Kingdom