Two pseudo-Goldstone bosons in the Gildener–Weinberg model
Abstract In a dimensionless multi-scalar extension of the Standard Model, Gildener and Weinberg assumed that along a flat direction, there is only one classically massless scalar, known as the scalon, which acquires mass through radiative corrections à la Coleman–Weinberg, while all other scalars re...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-10-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13360-x |
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| _version_ | 1850169858353790976 |
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| author | Parsa Ghorbani |
| author_facet | Parsa Ghorbani |
| author_sort | Parsa Ghorbani |
| collection | DOAJ |
| description | Abstract In a dimensionless multi-scalar extension of the Standard Model, Gildener and Weinberg assumed that along a flat direction, there is only one classically massless scalar, known as the scalon, which acquires mass through radiative corrections à la Coleman–Weinberg, while all other scalars remain heavy. In this paper, by introducing a toy model with four scalar degrees of freedom we demonstrate the existence of two scalons along a specific flat direction that we construct. We present the effective potential for the model and provide the masses of the heavy scalars and two radiatively light pseudo-Goldstone bosons. |
| format | Article |
| id | doaj-art-11b3c887182c4086a046e30076c58142 |
| institution | OA Journals |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-11b3c887182c4086a046e30076c581422025-08-20T02:20:38ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-10-0184101510.1140/epjc/s10052-024-13360-xTwo pseudo-Goldstone bosons in the Gildener–Weinberg modelParsa Ghorbani0Physics Department, Faculty of Science, Ferdowsi University of MashhadAbstract In a dimensionless multi-scalar extension of the Standard Model, Gildener and Weinberg assumed that along a flat direction, there is only one classically massless scalar, known as the scalon, which acquires mass through radiative corrections à la Coleman–Weinberg, while all other scalars remain heavy. In this paper, by introducing a toy model with four scalar degrees of freedom we demonstrate the existence of two scalons along a specific flat direction that we construct. We present the effective potential for the model and provide the masses of the heavy scalars and two radiatively light pseudo-Goldstone bosons.https://doi.org/10.1140/epjc/s10052-024-13360-x |
| spellingShingle | Parsa Ghorbani Two pseudo-Goldstone bosons in the Gildener–Weinberg model European Physical Journal C: Particles and Fields |
| title | Two pseudo-Goldstone bosons in the Gildener–Weinberg model |
| title_full | Two pseudo-Goldstone bosons in the Gildener–Weinberg model |
| title_fullStr | Two pseudo-Goldstone bosons in the Gildener–Weinberg model |
| title_full_unstemmed | Two pseudo-Goldstone bosons in the Gildener–Weinberg model |
| title_short | Two pseudo-Goldstone bosons in the Gildener–Weinberg model |
| title_sort | two pseudo goldstone bosons in the gildener weinberg model |
| url | https://doi.org/10.1140/epjc/s10052-024-13360-x |
| work_keys_str_mv | AT parsaghorbani twopseudogoldstonebosonsinthegildenerweinbergmodel |