Photoproduction of π0-Mesons from the Nucleon and Deuteron

Makara Journal of Science

Nesreen T El-Shamy¹  Amel Hemmdan²  Eed Mohamed Darwish³ 

[1] Physics Department, Faculty of Girls, Ain Shams University, Heliopolis, Cairo 11566 Egypt;Physics Department, Faculty of Science, Aswan University, Aswan 81528 Egypt;Physics Department, Faculty of Science, Taibah University, Madina 41477 Saudi Arabia;

关键词: few-body systems;    meson productions;    photoproduction reactions;    spin observables;   

DOI  :  10.7454/mss.v20i2.5948

来源: DOAJ

【 摘 要 】

The photoproduction of π0-mesons from the nucleon and deuteron has been studied for incidents of photon energies up to 1.5 GeV. By using the MAID-2007 model for the process on the nucleon, we predict results for the unpolarized and helicity-dependent total cross sections of the semi-exclusive reaction γd→π0X (X=np+d) with the inclusion of rescattering effects. We find that rescattering effects yield a substantially large contribution. The extracted results are compared with the available experimental data and a satisfactory agreement is obtained. In addition, the contribution of γd→π0X (X=np+d) to the finite GDH integral has been evaluated by explicit integration up to 1.5 GeV and a total value of 256.96 µb has been obtained. Convergence of the GDH integral has been reached.

【 授权许可】

Unknown