CP violation and family mixing in the effective electroweak Lagrangian
We construct the most general effective Lagrangian of the matter sector of the Standard Model, including mixing and CP violating terms. The Lagrangian contains the effective operators that give the leading contribution in theories where the physics beyond the Standard Model shows at a scale $\Lambda...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/12441 |
| Acceso en línea: | https://hdl.handle.net/2445/12441 |
| Access Level: | acceso abierto |
| Palabra clave: | Interaccions febles (Física nuclear) Partícules (Física nuclear) Teoria de camps (Física) Renormalització (Física) Weak interactions (Nuclear physics) Field theory (Physics) Particles (Nuclear physics) Renormalization (Physics) |
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CP violation and family mixing in the effective electroweak LagrangianEspriu, D. (Domènec)Manzano, J.Interaccions febles (Física nuclear)Partícules (Física nuclear)Teoria de camps (Física)Renormalització (Física)Weak interactions (Nuclear physics)Field theory (Physics)Particles (Nuclear physics)Renormalization (Physics)We construct the most general effective Lagrangian of the matter sector of the Standard Model, including mixing and CP violating terms. The Lagrangian contains the effective operators that give the leading contribution in theories where the physics beyond the Standard Model shows at a scale $\Lambda >>M_{W}$. We perform the diagonalization and passage to the physical basis in full generality. We determine the contribution to the different observables and discuss the possible new sources of CP violation, the idea being to be able to gain some knowledge about new physics beyond the Standard Model from general considerations, without having to compute model by model. The values of the coefficients of the effective Lagrangian in some theories, including the Standard Model, are presented and we try to draw some general conclusions about the general pattern exhibited by physics beyond the Standard Model in what concerns CP violation. In the process we have had to deal with two theoretical problems which are very interesting in their own: the renormalization of the CKM matrix elements and the wave function renormalization in the on-shell scheme when mixing is present.The American Physical Society2001info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/12441Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.63.073008Physical Review D, 2001, vol. 63, núm. 7, p. 073008-1-073008-17http://doi.org/10.1103/PhysRevD.63.073008(c) The American Physical Society, 2001info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/124412026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
CP violation and family mixing in the effective electroweak Lagrangian |
| title |
CP violation and family mixing in the effective electroweak Lagrangian |
| spellingShingle |
CP violation and family mixing in the effective electroweak Lagrangian Espriu, D. (Domènec) Interaccions febles (Física nuclear) Partícules (Física nuclear) Teoria de camps (Física) Renormalització (Física) Weak interactions (Nuclear physics) Field theory (Physics) Particles (Nuclear physics) Renormalization (Physics) |
| title_short |
CP violation and family mixing in the effective electroweak Lagrangian |
| title_full |
CP violation and family mixing in the effective electroweak Lagrangian |
| title_fullStr |
CP violation and family mixing in the effective electroweak Lagrangian |
| title_full_unstemmed |
CP violation and family mixing in the effective electroweak Lagrangian |
| title_sort |
CP violation and family mixing in the effective electroweak Lagrangian |
| dc.creator.none.fl_str_mv |
Espriu, D. (Domènec) Manzano, J. |
| author |
Espriu, D. (Domènec) |
| author_facet |
Espriu, D. (Domènec) Manzano, J. |
| author_role |
author |
| author2 |
Manzano, J. |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Interaccions febles (Física nuclear) Partícules (Física nuclear) Teoria de camps (Física) Renormalització (Física) Weak interactions (Nuclear physics) Field theory (Physics) Particles (Nuclear physics) Renormalization (Physics) |
| topic |
Interaccions febles (Física nuclear) Partícules (Física nuclear) Teoria de camps (Física) Renormalització (Física) Weak interactions (Nuclear physics) Field theory (Physics) Particles (Nuclear physics) Renormalization (Physics) |
| description |
We construct the most general effective Lagrangian of the matter sector of the Standard Model, including mixing and CP violating terms. The Lagrangian contains the effective operators that give the leading contribution in theories where the physics beyond the Standard Model shows at a scale $\Lambda >>M_{W}$. We perform the diagonalization and passage to the physical basis in full generality. We determine the contribution to the different observables and discuss the possible new sources of CP violation, the idea being to be able to gain some knowledge about new physics beyond the Standard Model from general considerations, without having to compute model by model. The values of the coefficients of the effective Lagrangian in some theories, including the Standard Model, are presented and we try to draw some general conclusions about the general pattern exhibited by physics beyond the Standard Model in what concerns CP violation. In the process we have had to deal with two theoretical problems which are very interesting in their own: the renormalization of the CKM matrix elements and the wave function renormalization in the on-shell scheme when mixing is present. |
| publishDate |
2001 |
| dc.date.none.fl_str_mv |
2001 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/12441 |
| url |
https://hdl.handle.net/2445/12441 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.63.073008 Physical Review D, 2001, vol. 63, núm. 7, p. 073008-1-073008-17 http://doi.org/10.1103/PhysRevD.63.073008 |
| dc.rights.none.fl_str_mv |
(c) The American Physical Society, 2001 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
(c) The American Physical Society, 2001 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
The American Physical Society |
| publisher.none.fl_str_mv |
The American Physical Society |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
| instname_str |
Universidad de Barcelona |
| reponame_str |
Dipòsit Digital de la UB |
| collection |
Dipòsit Digital de la UB |
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|
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1869412516030840832 |
| score |
15.301629 |