dc.contributor | Universidade Estadual Paulista (UNESP) | |
dc.contributor | School of Mathematics and Statistics, University of Sydney | |
dc.date.accessioned | 2022-04-28T20:40:09Z | |
dc.date.accessioned | 2022-12-20T01:57:58Z | |
dc.date.available | 2022-04-28T20:40:09Z | |
dc.date.available | 2022-12-20T01:57:58Z | |
dc.date.created | 2022-04-28T20:40:09Z | |
dc.date.issued | 1992-01-01 | |
dc.identifier | Physical Review A, v. 46, n. 7, p. 3967-3977, 1992. | |
dc.identifier | 1050-2947 | |
dc.identifier | http://hdl.handle.net/11449/225130 | |
dc.identifier | 10.1103/PhysRevA.46.3967 | |
dc.identifier | 2-s2.0-4243557845 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5405260 | |
dc.description.abstract | A study of the analytic behavior of different few-particle scattering amplitudes at low energies in two space dimensions is presented. Such a study is of use in modeling and understanding different few-particle processes at low energies. A detailed discussion of the energy and the momentum dependence of the partial-wave on-the-energy-shell and off-the-energy-shell two-particle t matrices is given. These t-matrix elements tend to zero as the energy and momentum variables tend to zero. The multiple-scattering series is used to show that the connected three-to-three amplitudes diverge in the low-energy-momentum limit. Unitarity relations are used to show that the connected two-to-three and one-to-three amplitudes have specific logarithmic singularities at the m-particle breakup threshold. The subenergy singularity in the two-to-three amplitudes is also studied, and comments are made on some applications of the present study in different problems of physical interest. © 1992 The American Physical Society. | |
dc.language | eng | |
dc.relation | Physical Review A | |
dc.source | Scopus | |
dc.title | Low-energy behavior of few-particle scattering amplitudes in two dimensions | |
dc.type | Artículos de revistas | |