Photoneutron multiplicities of preactinide nuclei at energies above the pion threshold

✍ Scribed by J.D.T. Arruda-Neto; S. Simionatto; V.P. Likhachev; F. Garcia; J. Mesa; A. Deppman; O. Rodriguez; F. Guzmán

• Book ID: 104336919
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 570 KB
• Volume: 638
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(98)00215-2

✦ Synopsis

The average photoneutron multiplicities P of Au, Ta and ~82W were deduced from their previously measured excitation energies /)x, from 160 to 250 MeV. A combined analysis of these data and those measured at Saclay up to 140 MeV allowed the extraction of information on /~x at the "pure evaporation" and quasideuteron energy regions. A theoretical approach for the study of ~ above 140 MeV, which incorporates photopion reabsorption processes by two-body, was proposed, allowing a tentative delineation of the pion mean free path in the nucleus. @ 1998 Elsevier Science B.V.