✦ LIBER ✦

The unitarity defect of the S-matrix and the underlying absorptive potential: M. S. Hussein. Instituto de Física, Universidade de São Paulo, C. P. 20516, 01498 São Paulo, SP, Brazil

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 22 KB
Volume: 174
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(87)90089-3

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The unitarity defect of the S-matrix and

The unitarity defect of the S-matrix and the underlying absorptive potential. II. The case of energy-dependent optical potentials: M. S. Hussein. Instituto de Física, Universidade de São Paulo, C.P. 20516, 01498 São Paulo, S.P., Brazil

📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 70 KB

Chaos in a spin-boson system: Classical

Chaos in a spin-boson system: Classical analysis: M. A. M. de Aguiar and K. Furuya. Instituto de Física “Gleb Wataghin,” Departamento de Física do Estado Sólido e Ciências de Materiais, Universidade de Campinas, C.P. 6165, Campinas, Brazil; C. H. Lewenkopf. Max-Planck-Institut für Kernphysik, W-6900 Heidelberg, Germany; and M. C. Nemes. Instituto de Física, Departamento de Física-Matemática, Universidade de São Paulo, C.P. 20516, São Paulo, Brazil

📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 103 KB

We investigate the effect of the compact Hilbert space associated to the spin degree of freedom on the Husimi distributions of a spin-boson system (maser model). In the classical limit, the phase space associated to such a degree of freedom is Iimited to a circle of radius ,,/% (J being the total sp

Some calculations for 12C in the α-parti

Some calculations for 12C in the α-particle model: V. C. Aguilera-Navarro and O. Portilho, Instituto de Física Teórica, 01405, São Paulo, Brasil

📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 88 KB

Asymptotic behaviour of solutions of the

Asymptotic behaviour of solutions of the Korteweg-De Vries equation: G. Schare, Institut für Theoretische Physik der Universität Zürich, Schönberggasse 9, CH-8001 Zürich, Switzerland; and W. F. Wreszinski, Instituto de Física, Universidade de São Paule, Caïxa Postal 20516, São Paule, Brazil

📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 41 KB

Hawking's ('-function regularization method is used to obtain the effective QCD Lagrangian for ordinary quarks moving in some constant background field. The general context is Adler's mean-field approximation to QCD, and an extension of his results is obtained for three particular models. Namely, at