Tensor analyzing power componentT20of theγd→→π0dprocess in the photon energy range from 200 to 400 MeV
| Autor: | Sayed Abdel-Khalek, Hanan Al-Ghamdi, E. S. Almogait, Eed M. Darwish |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics Range (particle radiation) Photon General Physics and Astronomy 02 engineering and technology Photon energy 021001 nanoscience & nanotechnology 01 natural sciences Nuclear physics Amplitude Pion Deuterium 0103 physical sciences Tensor 0210 nano-technology Wave function |
| Zdroj: | Results in Physics. 18:103238 |
| ISSN: | 2211-3797 |
| DOI: | 10.1016/j.rinp.2020.103238 |
| Popis: | The tensor analyzing power component, T 20 , of the γ d → → π 0 d process in the photon energy range from 200 to 400 MeV is investigated. This work is motivated by the most recent and unique measurements from the VEPP-3 electron storage ring at the Budker Institute of Nuclear Physics in Novosibirsk, Russia. We point out a special sensitivity of T 20 to the elementary γ N → π N amplitude and to the realistic NN potential model adopted for the deuteron wave function at backward pion angles, especially in the region 90 ∘ θ 150 ∘ . The estimated results for T 20 are compared with the experimental data from VEPP-3 and a satisfactory agreement is obtained at incident photon energies below 375 MeV. At higher photon energies and extreme backward pion angles, the estimated results of T 20 considerably underestimate the data. |
| Databáze: | OpenAIRE |
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