New evaluated data on 206,207,208Pb photodisintegration

• Published in: The European physical journal. A, Hadrons and nuclei Vol. 57; no. 10
• Main Authors: Varlamov, V. V., Davydov, A. I., Orlin, V. N.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2021; Springer Nature B.V
• Subjects: Hadrons; Heavy Ions; Lead isotopes; Nuclear cross sections; Nuclear Fusion; Nuclear Physics; Particle and Nuclear Physics; Photodisintegration; Physics; Physics and Astronomy; Regular Article - Experimental Physics
• ISSN: 1434-6001; 1434-601X
• DOI: 10.1140/epja/s10050-021-00594-6

New cross sections of the partial ( γ , 1 n ) , ( γ , 2 n ) , and ( γ , 3 n ) and total ( γ , Sn ), and ( γ , tot) photoneutron reactions for 206 , 207 Pb were evaluated using the experimental-theoretical method. The evaluation procedure was based on the comparison in detail of 206 , 207 Pb data obtained only at Livermore (USA) with 208 Pb data obtained at Livermore, Saclay (France) and also in other experiments. It was found that in the cases of all 206 , 207 , 208 Pb isotopes clear disagreements between Livermore data and new evaluated data can be explained by the assumption of loss of many neutrons in experimental ( γ , 1 n ) reaction cross sections. It was shown that Livermore experimental data for 206 , 207 , 208 Pb as well as for 75 As, 127 I, and 181 Ta investigated before are not reliable.