Implications of the LHCb Evidence for Charm CP Violation

The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate q...

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Detalles Bibliográficos
Autores principales: Isidori, Gino, Kamenik, Jernej F., Ligeti, Zoltan, Perez, Gilad
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2012.03.046
http://cds.cern.ch/record/1401157
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author Isidori, Gino
Kamenik, Jernej F.
Ligeti, Zoltan
Perez, Gilad
author_facet Isidori, Gino
Kamenik, Jernej F.
Ligeti, Zoltan
Perez, Gilad
author_sort Isidori, Gino
collection CERN
description The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate qualitatively the magnitude of the non-SM tree level operators required to generate the observed central value. In the context of an effective theory, we list the operators that can give rise to the measured CP violation and investigate constraints on them from other processes.
id cern-1401157
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-14011572023-03-14T20:53:47Zdoi:10.1016/j.physletb.2012.03.046http://cds.cern.ch/record/1401157engIsidori, GinoKamenik, Jernej F.Ligeti, ZoltanPerez, GiladImplications of the LHCb Evidence for Charm CP ViolationParticle Physics - PhenomenologyThe LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate qualitatively the magnitude of the non-SM tree level operators required to generate the observed central value. In the context of an effective theory, we list the operators that can give rise to the measured CP violation and investigate constraints on them from other processes.The LHCb collaboration recently announced preliminary evidence for CP violation in D meson decays. We discuss this result in the context of the standard model (SM), as well as its extensions. In the absence of reliable methods to evaluate the hadronic matrix elements involved, we can only estimate qualitatively the magnitude of the non-SM tree level operators required to generate the observed central value. In the context of an effective theory, we list the operators that can give rise to the measured CP violation and investigate constraints on them from other processes.arXiv:1111.4987CERN-PH-TH-2011-301oai:cds.cern.ch:14011572011-11-22
spellingShingle Particle Physics - Phenomenology
Isidori, Gino
Kamenik, Jernej F.
Ligeti, Zoltan
Perez, Gilad
Implications of the LHCb Evidence for Charm CP Violation
title Implications of the LHCb Evidence for Charm CP Violation
title_full Implications of the LHCb Evidence for Charm CP Violation
title_fullStr Implications of the LHCb Evidence for Charm CP Violation
title_full_unstemmed Implications of the LHCb Evidence for Charm CP Violation
title_short Implications of the LHCb Evidence for Charm CP Violation
title_sort implications of the lhcb evidence for charm cp violation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2012.03.046
http://cds.cern.ch/record/1401157
work_keys_str_mv AT isidorigino implicationsofthelhcbevidenceforcharmcpviolation
AT kamenikjernejf implicationsofthelhcbevidenceforcharmcpviolation
AT ligetizoltan implicationsofthelhcbevidenceforcharmcpviolation
AT perezgilad implicationsofthelhcbevidenceforcharmcpviolation

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