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Classical observables from partial wave amplitudes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Hojin | - |
dc.contributor.author | Lee, Sangmin | - |
dc.contributor.author | Mazumdar, Subhajit | - |
dc.date.accessioned | 2023-08-17T01:54:10Z | - |
dc.date.available | 2023-08-17T10:54:39Z | - |
dc.date.issued | 2023-06-16 | - |
dc.identifier.citation | Journal of High Energy Physics,2023:96 | ko_KR |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | https://hdl.handle.net/10371/195385 | - |
dc.description.abstract | We study the formalism of Kosower-Maybee-OConnell (KMOC) to extract classical impulse from quantum amplitude in the context of the partial wave expansion of a 2-to-2 elastic scattering. We take two complementary approaches to establish the connection. The first one takes advantage of Clebsch-Gordan relations for the base amplitudes of the partial wave expansion. The second one is a novel adaptation of the traditional saddle point approximation in the semi-classical limit. In the former, an interference between the S-matrix and its conjugate leads to a large degree of cancellation such that the saddle point approximation to handle a rapidly oscillating integral is no longer needed. As an example with a non-orbital angular momentum, we apply our methods to the charge-monopole scattering problem in the probe limit and reproduce both of the two angles characterizing the classical scattering. A spinor basis for the partial wave expansion, a non-relativistic avatar of the spinor-helicity variables, plays a crucial role throughout our computations. | ko_KR |
dc.language.iso | en | ko_KR |
dc.publisher | Springer | ko_KR |
dc.subject | Classical Theories of Gravity | - |
dc.subject | Scattering Amplitudes | - |
dc.subject | Solitons Monopoles and Instantons | - |
dc.title | Classical observables from partial wave amplitudes | ko_KR |
dc.type | Article | ko_KR |
dc.identifier.doi | 10.1007/JHEP06(2023)096 | ko_KR |
dc.citation.journaltitle | Journal of High Energy Physics | ko_KR |
dc.language.rfc3066 | en | - |
dc.rights.holder | The Author(s) | - |
dc.date.updated | 2023-06-18T03:11:03Z | - |
dc.citation.number | 96 | ko_KR |
dc.citation.volume | 2023 | ko_KR |
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