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...
| Príomhchruthaitheoirí: | , , |
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| Rannpháirtithe: | |
| Formáid: | Alt |
| Teanga: | en_US |
| Foilsithe / Cruthaithe: |
American Physical Society
2010
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| Rochtain ar líne: | http://hdl.handle.net/1721.1/51876 |
| Achoimre: | 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. |
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