Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach
Three-nucleon systems are essential for the investigation of many-body forces in nuclear physics. Well-grounded parametrization of their vertex functions with further application for the calculation of cross-sections in nonlocal QED approach provides the ground for investigation of the variety of mu...
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| Format: | Article |
| Language: | English |
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V.N. Karazin Kharkiv National University Publishing
2023-09-01
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| Series: | East European Journal of Physics |
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| Online Access: | https://periodicals.karazin.ua/eejp/article/view/22174 |
| _version_ | 1797689048383356928 |
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| author | Pylyp Kuznietsov Yuriy A. Kasatkin Vyacheslav F. Klepikov |
| author_facet | Pylyp Kuznietsov Yuriy A. Kasatkin Vyacheslav F. Klepikov |
| author_sort | Pylyp Kuznietsov |
| collection | DOAJ |
| description | Three-nucleon systems are essential for the investigation of many-body forces in nuclear physics. Well-grounded parametrization of their vertex functions with further application for the calculation of cross-sections in nonlocal QED approach provides the ground for investigation of the variety of multi-particle systems. In present paper we describe the process of parametrization of two-particle photo-breakup amplitudes of three-nucleon systems (3H, 3He). We provide the general description of the wave function construction for three-nucleon systems as well as the parametrization of their vertex functions accounting two- and three-nucleon interactions based on meson exchange current formalism. In our calculations we account first and second order one-pion exchange terms and the term related to the exchange of ω and ρ mesons. The three-nucleon interaction potential is given as a sum of attraction (two-pion exchange) term and
appropriate repulsive part. Based on the variational ”Urbana + Model VII” amplitudes we provide the results for energy dependence of differential cross-section of 3He(γ, p)d reaction at proton angle θ = 90◦ from the threshold up to Eγ = 40 MeV and compare theoretical predictions with the available experimental data. The investigation is also provided for angular cross-section distributions at high photon energies (Eγ = 305 ± 5 MeV; 365 ± 5 MeV; 450 ± 10 MeV and 675 ± 50 MeV). Correct description of 3H, 3He photo-disintegration processes in a unified approach based on the gauge nature of the electromagnetic field implies application of this model for other multi-particle systems. |
| first_indexed | 2024-03-12T01:39:09Z |
| format | Article |
| id | doaj.art-7a0872a4c77c4d6ba95f51d567311fb9 |
| institution | Directory Open Access Journal |
| issn | 2312-4334 2312-4539 |
| language | English |
| last_indexed | 2024-03-12T01:39:09Z |
| publishDate | 2023-09-01 |
| publisher | V.N. Karazin Kharkiv National University Publishing |
| record_format | Article |
| series | East European Journal of Physics |
| spelling | doaj.art-7a0872a4c77c4d6ba95f51d567311fb92023-09-10T16:51:57ZengV.N. Karazin Kharkiv National University PublishingEast European Journal of Physics2312-43342312-45392023-09-01357858410.26565/2312-4334-2023-3-6822174Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED ApproachPylyp Kuznietsov0Yuriy A. Kasatkin1Vyacheslav F. Klepikov2O. I. Akhiezer Department for Nuclear and High Energy Physics, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine; Institute of Electrophysics & Radiation Technologies National Academy of Sciences of Ukraine, Kharkiv, Ukraine Institute of Electrophysics & Radiation Technologies National Academy of Sciences of Ukraine, Kharkiv, Ukraine O. I. Akhiezer Department for Nuclear and High Energy Physics, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine; Institute of Electrophysics & Radiation Technologies National Academy of Sciences of Ukraine, Kharkiv, Ukraine Three-nucleon systems are essential for the investigation of many-body forces in nuclear physics. Well-grounded parametrization of their vertex functions with further application for the calculation of cross-sections in nonlocal QED approach provides the ground for investigation of the variety of multi-particle systems. In present paper we describe the process of parametrization of two-particle photo-breakup amplitudes of three-nucleon systems (3H, 3He). We provide the general description of the wave function construction for three-nucleon systems as well as the parametrization of their vertex functions accounting two- and three-nucleon interactions based on meson exchange current formalism. In our calculations we account first and second order one-pion exchange terms and the term related to the exchange of ω and ρ mesons. The three-nucleon interaction potential is given as a sum of attraction (two-pion exchange) term and appropriate repulsive part. Based on the variational ”Urbana + Model VII” amplitudes we provide the results for energy dependence of differential cross-section of 3He(γ, p)d reaction at proton angle θ = 90◦ from the threshold up to Eγ = 40 MeV and compare theoretical predictions with the available experimental data. The investigation is also provided for angular cross-section distributions at high photon energies (Eγ = 305 ± 5 MeV; 365 ± 5 MeV; 450 ± 10 MeV and 675 ± 50 MeV). Correct description of 3H, 3He photo-disintegration processes in a unified approach based on the gauge nature of the electromagnetic field implies application of this model for other multi-particle systems.https://periodicals.karazin.ua/eejp/article/view/22174three-nucleon system,photo-breakupcross-sectionamplitudemany-body forcemeson-exchange current |
| spellingShingle | Pylyp Kuznietsov Yuriy A. Kasatkin Vyacheslav F. Klepikov Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach East European Journal of Physics three-nucleon system, photo-breakup cross-section amplitude many-body force meson-exchange current |
| title | Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach |
| title_full | Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach |
| title_fullStr | Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach |
| title_full_unstemmed | Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach |
| title_short | Amplitudes of 3H, 3He Two-Particle Photo-Breakup in Non-Local QED Approach |
| title_sort | amplitudes of 3h 3he two particle photo breakup in non local qed approach |
| topic | three-nucleon system, photo-breakup cross-section amplitude many-body force meson-exchange current |
| url | https://periodicals.karazin.ua/eejp/article/view/22174 |
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