Stability of multibrane models
Multibrane 5-dimensional models with a warped extra spatial dimension compactified on an S1/Z2 orbifold are investigated. The Goldberger-Wise field, with appropriate bulk and brane potentials, is utilized to fix the brane positions. However, not all configurations with fixed brane positions are stab...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Nuclear Physics B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321325000173 |
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| author | Marek Olechowski |
| author_facet | Marek Olechowski |
| author_sort | Marek Olechowski |
| collection | DOAJ |
| description | Multibrane 5-dimensional models with a warped extra spatial dimension compactified on an S1/Z2 orbifold are investigated. The Goldberger-Wise field, with appropriate bulk and brane potentials, is utilized to fix the brane positions. However, not all configurations with fixed brane positions are stable. Stability against small scalar perturbations of the metric and the Goldberger-Wise field was so far analyzed only for 2-brane models. Generalization of such analysis for multibrane models is the main subject of the present work. Stability of brane configurations is closely related to the spectrum of radions: namely, the existence of any tachyonic radion indicates instability, while models with positive squared masses for all radions are stable. The necessary and sufficient conditions for each of these possibilities are derived for multibrane models and constitute the main result of this paper. Additionally, some properties of radions, particularly their relation to distances between and along branes, are discussed. |
| format | Article |
| id | doaj-art-4ae8385b923d4a2299accbf9180c99fc |
| institution | Kabale University |
| issn | 0550-3213 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj-art-4ae8385b923d4a2299accbf9180c99fc2025-01-26T05:03:26ZengElsevierNuclear Physics B0550-32132025-02-011011116807Stability of multibrane modelsMarek Olechowski0Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, PolandMultibrane 5-dimensional models with a warped extra spatial dimension compactified on an S1/Z2 orbifold are investigated. The Goldberger-Wise field, with appropriate bulk and brane potentials, is utilized to fix the brane positions. However, not all configurations with fixed brane positions are stable. Stability against small scalar perturbations of the metric and the Goldberger-Wise field was so far analyzed only for 2-brane models. Generalization of such analysis for multibrane models is the main subject of the present work. Stability of brane configurations is closely related to the spectrum of radions: namely, the existence of any tachyonic radion indicates instability, while models with positive squared masses for all radions are stable. The necessary and sufficient conditions for each of these possibilities are derived for multibrane models and constitute the main result of this paper. Additionally, some properties of radions, particularly their relation to distances between and along branes, are discussed.http://www.sciencedirect.com/science/article/pii/S0550321325000173Warped extra dimensionsOrbifold compactificationBrane modelsRadions |
| spellingShingle | Marek Olechowski Stability of multibrane models Nuclear Physics B Warped extra dimensions Orbifold compactification Brane models Radions |
| title | Stability of multibrane models |
| title_full | Stability of multibrane models |
| title_fullStr | Stability of multibrane models |
| title_full_unstemmed | Stability of multibrane models |
| title_short | Stability of multibrane models |
| title_sort | stability of multibrane models |
| topic | Warped extra dimensions Orbifold compactification Brane models Radions |
| url | http://www.sciencedirect.com/science/article/pii/S0550321325000173 |
| work_keys_str_mv | AT marekolechowski stabilityofmultibranemodels |