Photofission and total photoabsorption cross sections in the energy range of shadowing effects

Journal Article · Thu Jun 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.064607· OSTI ID:20771593

Deppman, A; Silva, G; Anefalos, S; Hisamoto, F H ^[1]; Duarte, S B; Tavares, O A.P. ^[2]; Garcia, F ^[1]

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1. Instituto de Fisica, Universidade de Sao Paulo, CP 66318, CEP 05315-970, Sao Paulo (Brazil)
2. Centro Brasileiro de Pesquisas Fisicas, CBPF/MCT, CEP 22290-180, Rio de Janeiro (Brazil)

The energy dependence of photofission cross section for heavy nuclei has recently been well described in terms of a Monte Carlo calculation at energies from the pion photoproduction threshold up to 1 GeV [see, for instance, A. Deppman et al., Phys. Rev. Lett. 87 (2001) 182701]. Recent experimental data from CLAS (CEBAF Large Angle Spectrometer) collaboration have extended the measured photofission cross section up to 3.5 GeV for actinide and preactinide nuclei. In this work we address the calculation of photoabsorption and photofission cross sections for actinide and preactinide nuclei above 1 GeV, a region where the shadowing effect plays an important role in the nuclear photoabsorption process.

• OSTI ID: 20771593
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 6; Other Information: DOI: 10.1103/PhysRevC.73.064607; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
ENERGY DEPENDENCE
GEV RANGE
HEAVY NUCLEI
MONTE CARLO METHOD
PHOTOFISSION
PHOTOPRODUCTION
PIONS