تقرير
Anomalous dispersion, superluminality and instabilities in two-flavour theories with local non-Hermitian mass mixing
| العنوان: | Anomalous dispersion, superluminality and instabilities in two-flavour theories with local non-Hermitian mass mixing |
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| المؤلفون: | Chernodub, M.N., Millington, Peter |
| المساهمون: | Institut Denis Poisson (IDP), Université d'Orléans (UO)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Astronomy Manchester, University of Manchester Manchester |
| المصدر: | https://hal.science/hal-04390947Test ; 2024. |
| بيانات النشر: | HAL CCSD |
| سنة النشر: | 2024 |
| المجموعة: | Université François-Rabelais de Tours: HAL |
| مصطلحات موضوعية: | Non-Hermitian Hamiltonian, Superluminal motion, Anomalous dispersion, Standard Model of particle physics, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] |
| الوصف: | Pseudo-Hermitian field theories possess a global continuous "similarity" symmetry, interconnecting the theories with the same physical particle content and an identical mass spectrum. In their regimes with real spectra, within this family of similarity transformations, there is a map from the non-Hermitian theory to its Hermitian similarity partner. We promote the similarity transformation to a local symmetry, which requires the introduction of a new vector similarity field as a connection in the similarity space of non-Hermitian theories. In the case of non-Hermitian two-flavour scalar or fermion mixing, and by virtue of a novel IR/UV mixing effect, the effect of inhomogeneous non-Hermiticity then reveals itself via anomalous dispersion, instabilities and superluminal group velocities at very high momenta, thus setting an upper bound on the particle momentum propagating through inhomogeneous backgrounds characterised by Lagrangians with non-Hermitian mass matrices. Such a non-Hermitian extension of the Standard Model of particle physics, encoded in a weak inhomogeneity of the non-Hermitian part of the fermion mass matrix, may nevertheless provide us with a low-energy particle spectrum consistent with experimentally observed properties. |
| نوع الوثيقة: | report |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/2401.06097; hal-04390947; https://hal.science/hal-04390947Test; https://hal.science/hal-04390947/documentTest; https://hal.science/hal-04390947/file/Non-Hermitian_Superluminality.pdfTest; ARXIV: 2401.06097 |
| الإتاحة: | https://hal.science/hal-04390947Test https://hal.science/hal-04390947/documentTest https://hal.science/hal-04390947/file/Non-Hermitian_Superluminality.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.41DF8A77 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |