Potential Scattering of a Wave Packet
作者:
W. Edward Gettys,
期刊:
American Journal of Physics
(AIP Available online 1965)
卷期:
Volume 33,
issue 6
页码: 485-487
ISSN:0002-9505
年代: 1965
DOI:10.1119/1.1971718
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
A wave-packet formalism is presented for obtaining the differential cross section for the elastic scattering of a single particle by a potential. The method avoids difficulties inherent in the more common formulations such as interference between incident and scattered waves, box normalization, and density of final states. The time sequence of events in the scattering process is pictured in an intuitively appealing manner. The initial form of the wave packet is specified explicitly, and the time development of the wave packet is determined from the time-translation operator. The asymptotic form of the wave packet is investigated after a sufficiently long time lapse, and the cross section is obtained from a calculation of particle flux densities.
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