Project description
On the trail of symmetry breaking and the matter-antimatter enigma
The Big Bang should have created equal numbers of matter and antimatter particles. This should still be the case today, given that when a matter particle meets its antimatter particle, they annihilate each other. Why we observe so much more matter than antimatter in the Universe is largely a mystery. The violation of certain fundamental laws of physics, so-called symmetry breaking, could provide an answer. The EU-funded OPSVIO project will develop an advanced data acquisition and analysis system that could provide a never seen glimpse of certain forms of symmetry breaking, deepening our understanding of our Universe.
Objective
In the nature, we observe disbalance between the matter and antimatter, which can be explained by requiring of CP symmetry breaking. This was already observed in the quark sector, but the level of violation was not enough to explain the matter-antimatter asymmetry. Recent experiment involving neutrino oscillations reported the indication of CP violation in the leptonic sector.
Ortho-Positronium (spin 1), a purely leptonic system, has very well-defined C and P properties, what makes it suitable for probing the CP ant CPT symmetries by constructing angular correlations between the polarization direction of positronium spin and the momentum or the polarization vector one of 3 gammas. Any deviation of the angular correlation amplitudes from zero would indicate discovery of a new physics.
Within this action we propose to perform high precision measurement of CP amplitude and improve the precision level for one order of magnitude compared to the state-of-art results. The data acquisition system will be based on fast pulse digitizers, what will increase the rate and the amount of collected data, but will also increase the complexity of the data analysis. Data collected in this measurement will also contain information on two CPT amplitudes. We will determine both, and one of them will be determined for the first time. Since no suitable polarimeter for annihilation gamma rays exists at the moment, we will study polarization sensitivity of a single-layer Compton polarimeter based on 8x8 GaGG(Ce) crystal array, which will be read out by a matching SiPM array.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences theoretical physics particle physics
- natural sciences physical sciences atomic physics
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.4. - SPREADING EXCELLENCE AND WIDENING PARTICIPATION
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-WF-2018-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
10000 ZAGREB
Croatia
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.