Spin couplings as witnesses of Planck scale phenomenology
Modified dispersion relations (MDRs) and noncommutative geometries are phenomenological models of Planck-scale corrections to relativistic kinematics, motivated by several approaches to quantum gravity. High-energy astrophysical observations, while commonly used to test such effects, are limited by...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
11 March 2025
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| In: |
The European physical journal. C, Particles and fields
Year: 2025, Volume: 85, Issue: 3, Pages: 1-15 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-025-13941-4 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-025-13941-4
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| Author Notes: | Pasquale Bosso, Fabrizio Illuminati, Luciano Petruzziello, Fabian Wagner |
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| 520 | |a Modified dispersion relations (MDRs) and noncommutative geometries are phenomenological models of Planck-scale corrections to relativistic kinematics, motivated by several approaches to quantum gravity. High-energy astrophysical observations, while commonly used to test such effects, are limited by significant systematic uncertainties. In contrast, low-energy, nonrelativistic experiments provide greater control, with precision serving as an amplifier for Planck-suppressed corrections. We derive corrections to Pauli’s equation for nonrelativistic spin-1/2 particles in a magnetic field, incorporating general MDRs and noncommutative geometries. Applying our framework to kappa-Poincaré symmetries and minimal-length quantum mechanics, we identify Planck-scale corrections accessible in the nonrelativistic regime. Using the electron’s anomalous magnetic moment, we constrain model parameters, pushing the kappa-Poincaré scale in the bi-crossproduct representation beyond 10 10 GeV. These results highlight the complementarity of low-energy precision tests and astrophysical observations in probing quantum gravity phenomenology. | ||
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| 700 | 1 | |a Wagner, Fabian |e VerfasserIn |0 (DE-588)1373838000 |0 (DE-627)1933235772 |4 aut | |
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