83. On the calculation of (n, γ) cross-sections

✍ Scribed by F. Beck

• Publisher: Elsevier Science
• Year: 1956
• Weight: 64 KB
• Volume: 22
• Category: Article
• ISSN: 0031-8914
• DOI: 10.1016/s0031-8914(56)90150-1

✦ Synopsis

to the single particle potential which describes elastic scattering. This represents an extension to inelastic events of the formal scattering theory previously derived 1). The operator .which induces the transition may be expressed entirely in terms of twonucleon transition matrices which are always regular. This formulation differs from that of Hayakawa and Yoshida 3) whose results depend explicitly on the nucleonnucleon potential which may be singular. Moreover, the derivation of this model does not involve the approximation of replacing the nucleon-nucleon interaction by the transition matrix 3). Results will be a~resented for the inelastic cross-section of nuclei with one and two nucleons outside a closed shell, for which it is felt that the model described here is an improvement over the Hauser-Feshbach model 4). The use of this model to obtain information about the target and recoil nuclear states will be discussed.