Partial Wave Amplitude Basis and Selection Rules in Effective Field Theories
We derive the generalized partial wave expansion for N→M scattering amplitude in terms of spinor helicity variables. The basis amplitudes of the expansion with definite angular momentum j consist of the Poincaré Clebsch-Gordan coefficients. Moreover, we obtain a series of selection rules that restrict the anomalous dimension matrix of effective operators and how effective operators contribute to some 2→N amplitudes at the loop level.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:126 |
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| Enthalten in: |
Physical review letters - 126(2021), 1 vom: 08. Jan., Seite 011601 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Jiang, Minyuan [VerfasserIn] |
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Date Revised 25.01.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1103/PhysRevLett.126.011601 |
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| funding: |
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| PPN (Katalog-ID): |
NLM320430006 |
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| 520 | |a We derive the generalized partial wave expansion for N→M scattering amplitude in terms of spinor helicity variables. The basis amplitudes of the expansion with definite angular momentum j consist of the Poincaré Clebsch-Gordan coefficients. Moreover, we obtain a series of selection rules that restrict the anomalous dimension matrix of effective operators and how effective operators contribute to some 2→N amplitudes at the loop level | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Shu, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Ming-Lei |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Yu-Hui |e verfasserin |4 aut | |
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