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. ShevelevD. A. Shkitov, Z. M.M. Mahmoud

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Measured values of the tensor analyzing power T20 for 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→dπ0 are 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.

Язык оригиналаанглийский
Номер статьи105573
ЖурналResults in Physics
Том38
DOI
СостояниеОпубликовано - июл 2022

Предметные области OECD FOS+WOS

  • 1.03.UI ФИЗИКА, МУЛЬТИДИСЦИПЛИНАРНАЯ
  • 2.05.PM МАТЕРИАЛОВЕДЕНИЕ, МУЛЬТИДИСЦИПЛИНАРНОЕ

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