Wormholes and masses for Goldstone bosons
Abstract There exist non-trivial stationary points of the Euclidean action for an axion particle minimally coupled to Einstein gravity, dubbed wormholes. They explicitly break the continuos global shift symmetry of the axion in a non-perturbative way, and generate an effective potential that may com...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-02-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP02(2019)136 |
| _version_ | 1818065288414887936 |
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| author | Rodrigo Alonso Alfredo Urbano |
| author_facet | Rodrigo Alonso Alfredo Urbano |
| author_sort | Rodrigo Alonso |
| collection | DOAJ |
| description | Abstract There exist non-trivial stationary points of the Euclidean action for an axion particle minimally coupled to Einstein gravity, dubbed wormholes. They explicitly break the continuos global shift symmetry of the axion in a non-perturbative way, and generate an effective potential that may compete with QCD depending on the value of the axion decay constant. In this paper, we explore both theoretical and phenomenological aspects of this issue. On the theory side, we address the problem of stability of the wormhole solutions, and we show that the spectrum of the quadratic action features only positive eigenvalues. On the phenomenological side, we discuss, beside the obvious application to the QCD axion, relevant consequences for models with ultralight dark matter and black hole superradiance. We conclude discussing wormhole solutions for a generic coset and the potential they generate. |
| first_indexed | 2024-12-10T14:49:31Z |
| format | Article |
| id | doaj.art-ba5494580aa34065b445ae97fd2eff89 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T14:49:31Z |
| publishDate | 2019-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-ba5494580aa34065b445ae97fd2eff892022-12-22T01:44:29ZengSpringerOpenJournal of High Energy Physics1029-84792019-02-012019213610.1007/JHEP02(2019)136Wormholes and masses for Goldstone bosonsRodrigo Alonso0Alfredo Urbano1Theoretical Physics Department, CERNTheoretical Physics Department, CERNAbstract There exist non-trivial stationary points of the Euclidean action for an axion particle minimally coupled to Einstein gravity, dubbed wormholes. They explicitly break the continuos global shift symmetry of the axion in a non-perturbative way, and generate an effective potential that may compete with QCD depending on the value of the axion decay constant. In this paper, we explore both theoretical and phenomenological aspects of this issue. On the theory side, we address the problem of stability of the wormhole solutions, and we show that the spectrum of the quadratic action features only positive eigenvalues. On the phenomenological side, we discuss, beside the obvious application to the QCD axion, relevant consequences for models with ultralight dark matter and black hole superradiance. We conclude discussing wormhole solutions for a generic coset and the potential they generate.http://link.springer.com/article/10.1007/JHEP02(2019)136Global SymmetriesBeyond Standard ModelNonperturbative Effects |
| spellingShingle | Rodrigo Alonso Alfredo Urbano Wormholes and masses for Goldstone bosons Journal of High Energy Physics Global Symmetries Beyond Standard Model Nonperturbative Effects |
| title | Wormholes and masses for Goldstone bosons |
| title_full | Wormholes and masses for Goldstone bosons |
| title_fullStr | Wormholes and masses for Goldstone bosons |
| title_full_unstemmed | Wormholes and masses for Goldstone bosons |
| title_short | Wormholes and masses for Goldstone bosons |
| title_sort | wormholes and masses for goldstone bosons |
| topic | Global Symmetries Beyond Standard Model Nonperturbative Effects |
| url | http://link.springer.com/article/10.1007/JHEP02(2019)136 |
| work_keys_str_mv | AT rodrigoalonso wormholesandmassesforgoldstonebosons AT alfredourbano wormholesandmassesforgoldstonebosons |