Feasibility of Ortho-positronium Lifetime Studies with the J-PET Detector in Context of Mirror Matter Models

Krzemień, W.; Río, E. Pérez del; Kacprzak, K.

doi:10.5506/aphyspolb.51.165

Cited by 6 publications

(3 citation statements)

References 33 publications

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“…Presently, only the J-PET detector is able to perform such a sensitive measurement of the o-PS lifetime [37]. A more detailed description of the method, estimations and calculations can be found in [38].…”

Section: Mirror Matter Searches In O-psmentioning

confidence: 99%

Physics Beyond the Standard Model with the J-PET detector

Río¹

2022

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)

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The Positronium (Ps) system, a bound state of an electron and a positron, is suitable for testing the predictions of quantum electrodynamics (QED), since its properties can be perturbatively calculated to high accuracy and, unlike the hydrogen system, is not affected by finite size or QCD effects at the current experimental precision level. This makes the Ps atom a good laboratory to test the Fundamental Symmetries of Physics and also search for new particles not included in the Standard Model (SM) of physics. On one hand, time reversal (T) and CP symmetry violation have never been observed in pure leptonic systems like the Ps atom, and the current experimental limits for CP and CPT violation in the decays of Ps is currently set at the level of 10 −3 , while for C violation are at the level of 10 −7 . These limits are still six and two orders of magnitude lower than the expected precision of 10 −9 set by photon-photon interactions. Secondly, experiments searching for invisible decays of the Ps triplet state, the ortho-Positronium (o-Ps), which mainly decays to three photons, are being conducted, since they are sensitive to new physics scenarios, e.g. Mirror Matter (MM), a suitable Dark Matter candidate, proposed to restore parity (P) violation. By performing a high precision measurement of the o-Ps lifetime, the accuracy of the present QED calculations can be tested and a search for the invisible decays of the o-Ps can be performed. These studies are conducted with the novel total-body Positron-Electron Tomograph (PET) scanner at the Jagiellonian University. The J-PET is a large and high precise medical imaging tool, based on the plastic scintillators. It is a high acceptance multi-purpose detector optimized for the detection of photons from positron-electron annihilation and can be used in a broad scope of interdisciplinary investigation, e.g. medical imaging, life-time measurements, quantum entanglement studies with o-Ps, and tests of discrete symmetries.

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Section: Mirror Matter Searches In O-psmentioning

confidence: 99%

Physics Beyond the Standard Model with the J-PET detector

Río¹

2022

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)

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“…Entanglement is one of the main resources for novel methods for quantum information processing like super-dense coding [6] or teleportation [7], as well as in other fields like e.g. medical sciences [8][9][10][11][12]. Despite its relevance for our quantum-theoretic understanding of nature [13][14][15] and for practical applications in quantum technology, this phenomenon is far from being well understood.…”

Section: Introductionmentioning

confidence: 99%

Special features of the Weyl–Heisenberg Bell basis imply unusual entanglement structure of Bell-diagonal states

Popp,

Hiesmayr

2024

New J. Phys.

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Maximally entangled Bell states are of crucial importance for entanglement based methods in quantum information science. Typically, a standard construction of a complete orthonormal Bell-basis by Weyl-Heisenberg operators is considered. We show that the group structure of these operators has strong implication on error correction schemes and on the entanglement structure within Bell-diagonal states. In particular, it implies an equivalence between a Pauli channel and a twirl channel. Interestingly, other complete orthonormal Bell-bases do break the equivalence and lead to a completely different entanglement structure, for instance in the share of PPT-entangled states. In detail, we find that the standard Bell basis has the highest observed share on PPT-states and PPT-entangled states compared to other Bell bases. In summary, our findings show that the standard Bell basis construction exploits a very special structure with strong implications to quantum information theoretic protocols if a deviation is considered.

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“…The original aim of the Jagiellonian Positron Emission Tomography (J-PET) project was to construct a low-cost, high-acceptance, multi-purpose medical scanner for novel medical imaging technique based on photons originating from electron-positron annihilation [1][2][3]. However, unique properties of the experimental setup allowing the measurement of the the polarization of annihilation photons, and determination of the positronium spin on the event-by-event basis made the J-PET detector a perfect experimental tool for various fundamental studies such as: tests of discrete symmetries in the positronium system [4], studies of photon quantum correlations [5,6], search for rare and forbidden decays [4], or Mirror Matter searches [7]. In this contribution, we present the experimental methods and summarize recent results obtained by the J-PET collaboration.…”

Section: Introductionmentioning

confidence: 99%

Test of discrete symmetries with J-PET

Krzemień¹

2022

Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)

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Search for possible violation of combined charge, parity, and time-reversal symmetries is yet another approach for a test of New Physics. Positronium being a bound state of electron and positron, is the lightest matter-antimatter system and at the same time eingenstate of the C and P operators, which makes it a unique probe in such endeavour. The experimental method consists of the measurement of angular correlations constructed based on the momenta and/or polarization of photons originating from the positronium annihilation, and the positronium spin orientation. The J-PET detector is the only device which enables determination of polarization of photons from positronium annihilation together with estimation of positronium spin axis on the event-by-event basis. This allows exploration of a new class of discrete symmetry-odd operators that has not been investigated before. With first measurements demonstrating such capabilities, we are able to reach the precision of CP and CPT tests at permill level. In this contribution we describe experimental techniques and new results of discrete symmetry tests in the decays of positronium.

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Feasibility of Ortho-positronium Lifetime Studies with the J-PET Detector in Context of Mirror Matter Models

Abstract: We discuss the possibility to perform the experimental searches of invisible decays in the ortho-positronium system with the J-PET detector.

Cited by 6 publications

References 33 publications

Physics Beyond the Standard Model with the J-PET detector

Physics Beyond the Standard Model with the J-PET detector

Special features of the Weyl–Heisenberg Bell basis imply unusual entanglement structure of Bell-diagonal states

Test of discrete symmetries with J-PET

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