Polarizabilities from kaon Compton scattering
Abstract The polarizabilities of light pseudoscalar mesons can be extracted from differential cross sections for Compton scattering near threshold. While this has been accomplished for charged pions employing Primakoff reactions, a corresponding measurement for kaons will be affected by the presence...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13615-7 |
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| author | Dominik Stamen Jan Luca Dammann Yannis Korte Bastian Kubis |
| author_facet | Dominik Stamen Jan Luca Dammann Yannis Korte Bastian Kubis |
| author_sort | Dominik Stamen |
| collection | DOAJ |
| description | Abstract The polarizabilities of light pseudoscalar mesons can be extracted from differential cross sections for Compton scattering near threshold. While this has been accomplished for charged pions employing Primakoff reactions, a corresponding measurement for kaons will be affected by the presence of the $$K^*(892)$$ K ∗ ( 892 ) resonance not too far from threshold. We propose a method to extend the energy range serviceable for this purpose by reconstructing the $$K^*(892)$$ K ∗ ( 892 ) contribution model-independently from its $$K\pi $$ K π intermediate state, using dispersion theory. We point out that, in contrast to the charged-pion analog, there is likely no strong hierarchy between sum and difference of electric and magnetic dipole polarizabilities; we discuss the sensitivity to disentangling both by improved experimental angular coverage. |
| format | Article |
| id | doaj-art-723fc4945d5848bfb016da071511d4ca |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-723fc4945d5848bfb016da071511d4ca2025-02-02T12:39:53ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211210.1140/epjc/s10052-024-13615-7Polarizabilities from kaon Compton scatteringDominik Stamen0Jan Luca Dammann1Yannis Korte2Bastian Kubis3Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Bethe Center for Theoretical Physics, Universität BonnHelmholtz-Institut für Strahlen- und Kernphysik (Theorie), Bethe Center for Theoretical Physics, Universität BonnHelmholtz-Institut für Strahlen- und Kernphysik (Theorie), Bethe Center for Theoretical Physics, Universität BonnHelmholtz-Institut für Strahlen- und Kernphysik (Theorie), Bethe Center for Theoretical Physics, Universität BonnAbstract The polarizabilities of light pseudoscalar mesons can be extracted from differential cross sections for Compton scattering near threshold. While this has been accomplished for charged pions employing Primakoff reactions, a corresponding measurement for kaons will be affected by the presence of the $$K^*(892)$$ K ∗ ( 892 ) resonance not too far from threshold. We propose a method to extend the energy range serviceable for this purpose by reconstructing the $$K^*(892)$$ K ∗ ( 892 ) contribution model-independently from its $$K\pi $$ K π intermediate state, using dispersion theory. We point out that, in contrast to the charged-pion analog, there is likely no strong hierarchy between sum and difference of electric and magnetic dipole polarizabilities; we discuss the sensitivity to disentangling both by improved experimental angular coverage.https://doi.org/10.1140/epjc/s10052-024-13615-7 |
| spellingShingle | Dominik Stamen Jan Luca Dammann Yannis Korte Bastian Kubis Polarizabilities from kaon Compton scattering European Physical Journal C: Particles and Fields |
| title | Polarizabilities from kaon Compton scattering |
| title_full | Polarizabilities from kaon Compton scattering |
| title_fullStr | Polarizabilities from kaon Compton scattering |
| title_full_unstemmed | Polarizabilities from kaon Compton scattering |
| title_short | Polarizabilities from kaon Compton scattering |
| title_sort | polarizabilities from kaon compton scattering |
| url | https://doi.org/10.1140/epjc/s10052-024-13615-7 |
| work_keys_str_mv | AT dominikstamen polarizabilitiesfromkaoncomptonscattering AT janlucadammann polarizabilitiesfromkaoncomptonscattering AT yanniskorte polarizabilitiesfromkaoncomptonscattering AT bastiankubis polarizabilitiesfromkaoncomptonscattering |