Rescattering effects in the reaction γd → π−pp
Experimental data for the tensor analyzing power [Formula: see text] in the [Formula: see text] reaction were obtained in the photon energy range from 400 to 650 MeV, with the proton momenta in the laboratory system exceeding 400 MeV/c. The data were taken at the Budker Institute of Nuclear Physics using an internal tensor-polarized gas deuterium target and tagged photons. The incident photons in the photoproduction reaction [Formula: see text] correspond to quasi-real virtual photons generated via electron scattering in the electroproduction process [Formula: see text] at small four-momentum transfer. The two final protons were detected in coincidence. The tensor analyzing power [Formula: see text] was extracted from the yield asymmetry observed upon reversal of the sign of the deuteron tensor polarization. The experimental results are compared with statistical simulations performed within the framework of a spectator model that includes interaction between the final particles. The comparison demonstrates that accounting for the interaction effects significantly improves the agreement with the data.
Authors
- V. V. Gauzshtein (ORCID: https://orcid.org/0000-0001-9072-0893)
- Dmitry Toporkov
- S. A. Zevakov
- M. I. Levchuk
- B.V. Vasilishin
- Dmitry Nikolenko (ORCID: https://orcid.org/0000-0003-3781-9186)
- M. A. Skamarokha (ORCID: https://orcid.org/0000-0002-4886-6941)
- A. Fix (ORCID: https://orcid.org/0000-0002-7283-8246)
- Timofey Maltsev
- Yuriy Shestakov
- В В Иванов (ORCID: https://orcid.org/0000-0002-2869-0408)
- V. L. Dorokhov (ORCID: https://orcid.org/0000-0002-4549-1849)
- E. B. Levichev
- V. M. Kudryavtsev
- H. M. Abou-Elsebaa
- Vladislav Borin (ORCID: https://orcid.org/0000-0002-8317-5855)
- Evgeniy Simonov (ORCID: https://orcid.org/0000-0003-0194-4487)
- А. А. Логинов (ORCID: https://orcid.org/0000-0002-3966-4045)
- G. N. Baranov (ORCID: https://orcid.org/0000-0002-9027-5977)
- A. S. Zhuravlev
- I. A. Rachek (ORCID: https://orcid.org/0000-0001-7819-7534)
- D. V. Dorokhova
- S. Sinyatkin
- A. Bogomyagkov (ORCID: https://orcid.org/0000-0001-5751-3761)
- K. Yu. Karyukina
- E. M. Darwish (ORCID: https://orcid.org/0000-0002-8250-2412)
- R. Z. Mamutov (ORCID: https://orcid.org/0000-0002-1808-1879)
- Pavel Piminov
- I.B. Logashenko
- Arseniy Yurchenko
- E. V. Starostina
- Ivan Okunev
- Darya Efimenko
- Artemiy Kovalenko
- Lev Shekhtman
- Ivan Morozov
- Ivan Ulev
Institutions
- Tomsk State University of Control Systems and Radio-Electronics (RU)
- National Academy of Sciences of Belarus (BY)
- Novosibirsk State University (RU)
- Taibah University (SA)
- Tomsk Polytechnic University (RU)
- Institute of Applied Physics (BY)
- Budker Institute of Nuclear Physics (RU)
- Sohag University (EG)
Publication Details
- Journal
- Scientific Reports
- Published
- 2026-01-03
- DOI
- https://doi.org/10.1038/s41598-025-34162-5
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00