Results in Physics (Jul 2022)
Coherent photoproduction of a π0-meson on a tensor-polarized deuteron at large momentum transfer
- V.V. Gauzshtein,
- B.I. Vasilishin,
- E.M. Darwish,
- A.I. Fix,
- M.Ya. Kuzin,
- M.I. Levchuk,
- A.Yu. Loginov,
- D.M. Nikolenko,
- I.A. Rachek,
- Yu.V. Shestakov,
- D.K. Toporkov,
- A.V. Yurchenko,
- S.A. Zevakov,
- B.A. Alexeev,
- G.A. Karmanov,
- S.P. Korneev,
- D.D. Zaytsev,
- I.K. Zaytsev,
- I.A. Dementiev,
- M.V. Shevelev,
- D.A. Shkitov,
- Z.M.M. Mahmoud
Affiliations
- V.V. Gauzshtein
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia; Institute of High Current Electronics, 634055 Tomsk, Russia; Corresponding author at: National Research Tomsk Polytechnical University, 634050 Tomsk, Russia.
- B.I. Vasilishin
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- E.M. Darwish
- Physics Department, College of Science, Taibah University, Medina 41411, Saudi Arabia; Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
- A.I. Fix
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- M.Ya. Kuzin
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- M.I. Levchuk
- Stepanov Institute of Physics, National Academy of Sciences of Belarus, 220072 Minsk, Belarus
- A.Yu. Loginov
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia; Tomsk State University of Control Systems and Radioelectronics, 634050 Tomsk, Russia
- D.M. Nikolenko
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
- I.A. Rachek
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
- Yu.V. Shestakov
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia; Novosibirsk State University, 630090 Novosibirsk, Russia
- D.K. Toporkov
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia; Novosibirsk State University, 630090 Novosibirsk, Russia
- A.V. Yurchenko
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
- S.A. Zevakov
- Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia
- B.A. Alexeev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- G.A. Karmanov
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- S.P. Korneev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- D.D. Zaytsev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- I.K. Zaytsev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- I.A. Dementiev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- M.V. Shevelev
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- D.A. Shkitov
- National Research Tomsk Polytechnical University, 634050 Tomsk, Russia
- Z.M.M. Mahmoud
- Physics Department, Faculty of Science, King Khalid University, Abha 62529, Saudi Arabia; Physics Department, Faculty of Science, New Valley University, El-Kharga 72511, Egypt
- Journal volume & issue
-
Vol. 38
p. 105573
Abstract
Measured values of the tensor analyzing power T20for the coherent photoproduction of a π0-meson on a deuteron are analyzed in the region of large momentum transfer. The incident photons of the photoproduction reaction γd→dπ0are the quasi-real virtual photons arising from the electron scattering in the electroproduction reaction ed→edπ0. The kinematic region of large momentum transfer is of particular interest, as it corresponds to small inter-nucleon distances in the deuteron. In this case, the amplitude of the process under study is noticeably sensitive to both the deuteron wave function at small inter-nucleon distances and the various model uncertainties arising from the description of the process for large momentum transfer. A comparison shows a significant discrepancy between the experimental data and the predictions from a number of theoretical models.
