One-loop self-energies in the electroweak model with a nonlinearly realized gauge group
We evaluate at one loop the self-energies for the W, Z mesons in the electroweak model where the gauge group is nonlinearly realized. In this model the Higgs boson parameters are absent, while a second mass parameter appears together with a scale for the radiative corrections. We estimate these para...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51876 |
| _version_ | 1826211205266538496 |
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| author | Bettinelli, D. Ferrari, Ruggero Quadri, A. |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Bettinelli, D. Ferrari, Ruggero Quadri, A. |
| author_sort | Bettinelli, D. |
| collection | MIT |
| description | We evaluate at one loop the self-energies for the W, Z mesons in the electroweak model where the gauge group is nonlinearly realized. In this model the Higgs boson parameters are absent, while a second mass parameter appears together with a scale for the radiative corrections. We estimate these parameters in a simplified fit on leptons and gauge bosons data. We check physical unitarity and the absence of infrared divergences. Landau gauge is used. As a reference for future higher order computations, the regularized D-dimensional amplitudes are provided. Eventually the limit D→4 is taken on physical amplitudes. |
| first_indexed | 2024-09-23T15:02:34Z |
| format | Article |
| id | mit-1721.1/51876 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:02:34Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/518762022-10-02T00:11:41Z One-loop self-energies in the electroweak model with a nonlinearly realized gauge group Bettinelli, D. Ferrari, Ruggero Quadri, A. Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Ferrari, Ruggero Ferrari, Ruggero We evaluate at one loop the self-energies for the W, Z mesons in the electroweak model where the gauge group is nonlinearly realized. In this model the Higgs boson parameters are absent, while a second mass parameter appears together with a scale for the radiative corrections. We estimate these parameters in a simplified fit on leptons and gauge bosons data. We check physical unitarity and the absence of infrared divergences. Landau gauge is used. As a reference for future higher order computations, the regularized D-dimensional amplitudes are provided. Eventually the limit D→4 is taken on physical amplitudes. U.S. Department of Energy 2010-03-02T15:08:14Z 2010-03-02T15:08:14Z 2009-06 2009-03 Article http://purl.org/eprint/type/JournalArticle 1550-2368 1550-7998 http://hdl.handle.net/1721.1/51876 Bettinelli, D. , R. Ferrari, and A. Quadri. “One-loop self-energies in the electroweak model with a nonlinearly realized gauge group.” Physical Review D 79.12 (2009): 125028. © 2009 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.79.125028 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Bettinelli, D. Ferrari, Ruggero Quadri, A. One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title | One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title_full | One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title_fullStr | One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title_full_unstemmed | One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title_short | One-loop self-energies in the electroweak model with a nonlinearly realized gauge group |
| title_sort | one loop self energies in the electroweak model with a nonlinearly realized gauge group |
| url | http://hdl.handle.net/1721.1/51876 |
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