Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions
- Autores
- Racker, Juan Diego
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- With an emphasis on unitarity and CPT requirements, we study the inclusion of CP-violating processes in baryogenesis at next-to-leading order, particularly those involving the top Yukawa interaction in leptogenesis. We show that there are more contributions than previously considered, but also important cancellations. Some of these involve the interference of connected with disconnected diagrams. We also discuss on the application of the Kinoshita-Lee-Nauenberg theorem to treat the infrared divergences that are common at next-to-leading order. Finally, we calculate the CP asymmetry in the three-body decay of a sterile neutrino into a lepton and top quarks.
Fil: Racker, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina - Materia
-
BEYOND STANDARD MODEL
COSMOLOGY OF THEORIES BEYOND THE SM
CP VIOLATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/120799
Ver los metadatos del registro completo
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Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributionsRacker, Juan DiegoBEYOND STANDARD MODELCOSMOLOGY OF THEORIES BEYOND THE SMCP VIOLATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1With an emphasis on unitarity and CPT requirements, we study the inclusion of CP-violating processes in baryogenesis at next-to-leading order, particularly those involving the top Yukawa interaction in leptogenesis. We show that there are more contributions than previously considered, but also important cancellations. Some of these involve the interference of connected with disconnected diagrams. We also discuss on the application of the Kinoshita-Lee-Nauenberg theorem to treat the infrared divergences that are common at next-to-leading order. Finally, we calculate the CP asymmetry in the three-body decay of a sterile neutrino into a lepton and top quarks.Fil: Racker, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaSpringer2019-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/120799Racker, Juan Diego; Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions; Springer; Journal of High Energy Physics; 2019; 2; 2-2019; 1-181126-67081029-8479CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP02(2019)042info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP02%282019%29042info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:12Zoai:ri.conicet.gov.ar:11336/120799instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:13.205CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
title |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
spellingShingle |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions Racker, Juan Diego BEYOND STANDARD MODEL COSMOLOGY OF THEORIES BEYOND THE SM CP VIOLATION |
title_short |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
title_full |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
title_fullStr |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
title_full_unstemmed |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
title_sort |
Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions |
dc.creator.none.fl_str_mv |
Racker, Juan Diego |
author |
Racker, Juan Diego |
author_facet |
Racker, Juan Diego |
author_role |
author |
dc.subject.none.fl_str_mv |
BEYOND STANDARD MODEL COSMOLOGY OF THEORIES BEYOND THE SM CP VIOLATION |
topic |
BEYOND STANDARD MODEL COSMOLOGY OF THEORIES BEYOND THE SM CP VIOLATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
With an emphasis on unitarity and CPT requirements, we study the inclusion of CP-violating processes in baryogenesis at next-to-leading order, particularly those involving the top Yukawa interaction in leptogenesis. We show that there are more contributions than previously considered, but also important cancellations. Some of these involve the interference of connected with disconnected diagrams. We also discuss on the application of the Kinoshita-Lee-Nauenberg theorem to treat the infrared divergences that are common at next-to-leading order. Finally, we calculate the CP asymmetry in the three-body decay of a sterile neutrino into a lepton and top quarks. Fil: Racker, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina |
description |
With an emphasis on unitarity and CPT requirements, we study the inclusion of CP-violating processes in baryogenesis at next-to-leading order, particularly those involving the top Yukawa interaction in leptogenesis. We show that there are more contributions than previously considered, but also important cancellations. Some of these involve the interference of connected with disconnected diagrams. We also discuss on the application of the Kinoshita-Lee-Nauenberg theorem to treat the infrared divergences that are common at next-to-leading order. Finally, we calculate the CP asymmetry in the three-body decay of a sterile neutrino into a lepton and top quarks. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/120799 Racker, Juan Diego; Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions; Springer; Journal of High Energy Physics; 2019; 2; 2-2019; 1-18 1126-6708 1029-8479 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/120799 |
identifier_str_mv |
Racker, Juan Diego; Unitarity and CP violation in leptogenesis at NLO: General considerations and top Yukawa contributions; Springer; Journal of High Energy Physics; 2019; 2; 2-2019; 1-18 1126-6708 1029-8479 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP02(2019)042 info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP02%282019%29042 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614491327692800 |
score |
13.070432 |