中国物理B ›› 2007, Vol. 16 ›› Issue (4): 989-993.doi: 10.1088/1009-1963/16/4/021

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106,110Pd (p,nγ)106,110Ag reactions at Ep=6.0-7.7MeV

胡碧涛1, P.P. 查鲁宾2, U.U. 尤拉夫列夫2   

  1. (1)Department of Modern Physics, Lanzhou University, Lanzhou 730000, China; (2)Faculty of Physics, Saint Petersburg University, Saint Petersburg, Russia
  • 收稿日期:2006-02-13 修回日期:2006-08-12 出版日期:2007-04-20 发布日期:2007-04-20

106,110Pd (p, n$\gamma$)106,110Ag reactions at Ep=6.0-7.7MeV

Hu Bi-Tao(胡碧涛)a), P.P. Zarubin (P.P. 查鲁宾)b), and U.U. Juravlev(U.U. 尤拉夫列夫)b)   

  1. a Department of Modern Physics, Lanzhou University, Lanzhou 730000, China; b Faculty of Physics, Saint Petersburg University, Saint Petersburg, Russia
  • Received:2006-02-13 Revised:2006-08-12 Online:2007-04-20 Published:2007-04-20

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摘要： This paper reports that the experimental excitation functions of reaction (p,n) are measured for 106,110Pd and ^{110}Pd at proton energy Ep=6.1-7.5MeV and Ep=6.0-7.7MeV respectively. The off-resonance excitation functions were compared with calculation values of the statistical model. A new formula used to estimate the peak cross section of isobaric analogue resonance was tested and it was found that calculation values agree reasonably well with the present data within experimental error, which confirms that the excitation strength of isobaric analogue state in (p,n) reaction not only depends on its spin, but also proportionally increases with the projectile proton spatial transmission Tp and the spectroscopic factor S for reaction (d,p) on the same target.

关键词: isobaric analogue resonance, cross section, statistical model

Abstract: This paper reports that the experimental excitation functions of reaction (p,n) are measured for 106,110Pd and 110Pd at proton energy Ep=6.1-7.5MeV and Ep=6.0-7.7MeV respectively. The off-resonance excitation functions were compared with calculation values of the statistical model. A new formula used to estimate the peak cross section of isobaric analogue resonance was tested and it was found that calculation values agree reasonably well with the present data within experimental error, which confirms that the excitation strength of isobaric analogue state in (p,n) reaction not only depends on its spin, but also proportionally increases with the projectile proton spatial transmission Tp and the spectroscopic factor S for reaction (d,p) on the same target.

Key words: isobaric analogue resonance, cross section, statistical model

中图分类号:  (Nucleon-induced reactions)

  • 25.40.-h
27.60.+j (90 ≤ A ≤ 149) 14.20.Dh (Protons and neutrons) 14.70.Bh (Photons)