Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays
- Autores
- Mileo, Nicolás Ismael; Kiers, Ken; Szynkman, Alejandro Andrés
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We define and test CP-even and CP-odd partial differential widths for the process τ→Kππντ assuming that an intermediate heavy charged scalar contributes to the decay amplitude. Adopting a model-independent approach, we use a Monte Carlo simulation in order to study the number of events needed to recover information on the new physics from these observables. Our analysis of the CP-odd observables indicates that the magnitude of fHηP, which is related to the new-physics contribution, can be recovered with an uncertainty smaller than 3% for 3×106 events. This number of events would also allow one to retrieve certain parameters appearing in the Standard Model amplitude at the percent level. In addition, we discuss the possibility of using the proposed observables to study specific models involving two Higgs doublets, such as the aligned two-Higgs-doublet model. This analysis is undertaken within the context of the upcoming super B-factories, which are expected to provide a considerably larger number of events than that which was supplied by the B-factories. Moreover, a similar set of observables could be employed to study other decay modes such as τ→πππντ, τ→KKπντ and τ→KKKντ.
Facultad de Ciencias Exactas
Instituto de Física La Plata - Materia
-
Ciencias Exactas
Física
decay amplitude - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/86874
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Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decaysMileo, Nicolás IsmaelKiers, KenSzynkman, Alejandro AndrésCiencias ExactasFísicadecay amplitudeWe define and test CP-even and CP-odd partial differential widths for the process τ→Kππν<sub>τ</sub> assuming that an intermediate heavy charged scalar contributes to the decay amplitude. Adopting a model-independent approach, we use a Monte Carlo simulation in order to study the number of events needed to recover information on the new physics from these observables. Our analysis of the CP-odd observables indicates that the magnitude of f<sub>H</sub>η<sub>P</sub>, which is related to the new-physics contribution, can be recovered with an uncertainty smaller than 3% for 3×10<sup>6</sup> events. This number of events would also allow one to retrieve certain parameters appearing in the Standard Model amplitude at the percent level. In addition, we discuss the possibility of using the proposed observables to study specific models involving two Higgs doublets, such as the aligned two-Higgs-doublet model. This analysis is undertaken within the context of the upcoming super B-factories, which are expected to provide a considerably larger number of events than that which was supplied by the B-factories. Moreover, a similar set of observables could be employed to study other decay modes such as τ→πππν<sub>τ</sub>, τ→KKπν<sub>τ</sub> and τ→KKKν<sub>τ</sub>.Facultad de Ciencias ExactasInstituto de Física La Plata2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/86874enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.91.073006info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:55Zoai:sedici.unlp.edu.ar:10915/86874Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:55.528SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
title |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
spellingShingle |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays Mileo, Nicolás Ismael Ciencias Exactas Física decay amplitude |
title_short |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
title_full |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
title_fullStr |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
title_full_unstemmed |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
title_sort |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
dc.creator.none.fl_str_mv |
Mileo, Nicolás Ismael Kiers, Ken Szynkman, Alejandro Andrés |
author |
Mileo, Nicolás Ismael |
author_facet |
Mileo, Nicolás Ismael Kiers, Ken Szynkman, Alejandro Andrés |
author_role |
author |
author2 |
Kiers, Ken Szynkman, Alejandro Andrés |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física decay amplitude |
topic |
Ciencias Exactas Física decay amplitude |
dc.description.none.fl_txt_mv |
We define and test CP-even and CP-odd partial differential widths for the process τ→Kππν<sub>τ</sub> assuming that an intermediate heavy charged scalar contributes to the decay amplitude. Adopting a model-independent approach, we use a Monte Carlo simulation in order to study the number of events needed to recover information on the new physics from these observables. Our analysis of the CP-odd observables indicates that the magnitude of f<sub>H</sub>η<sub>P</sub>, which is related to the new-physics contribution, can be recovered with an uncertainty smaller than 3% for 3×10<sup>6</sup> events. This number of events would also allow one to retrieve certain parameters appearing in the Standard Model amplitude at the percent level. In addition, we discuss the possibility of using the proposed observables to study specific models involving two Higgs doublets, such as the aligned two-Higgs-doublet model. This analysis is undertaken within the context of the upcoming super B-factories, which are expected to provide a considerably larger number of events than that which was supplied by the B-factories. Moreover, a similar set of observables could be employed to study other decay modes such as τ→πππν<sub>τ</sub>, τ→KKπν<sub>τ</sub> and τ→KKKν<sub>τ</sub>. Facultad de Ciencias Exactas Instituto de Física La Plata |
description |
We define and test CP-even and CP-odd partial differential widths for the process τ→Kππν<sub>τ</sub> assuming that an intermediate heavy charged scalar contributes to the decay amplitude. Adopting a model-independent approach, we use a Monte Carlo simulation in order to study the number of events needed to recover information on the new physics from these observables. Our analysis of the CP-odd observables indicates that the magnitude of f<sub>H</sub>η<sub>P</sub>, which is related to the new-physics contribution, can be recovered with an uncertainty smaller than 3% for 3×10<sup>6</sup> events. This number of events would also allow one to retrieve certain parameters appearing in the Standard Model amplitude at the percent level. In addition, we discuss the possibility of using the proposed observables to study specific models involving two Higgs doublets, such as the aligned two-Higgs-doublet model. This analysis is undertaken within the context of the upcoming super B-factories, which are expected to provide a considerably larger number of events than that which was supplied by the B-factories. Moreover, a similar set of observables could be employed to study other decay modes such as τ→πππν<sub>τ</sub>, τ→KKπν<sub>τ</sub> and τ→KKKν<sub>τ</sub>. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/86874 |
url |
http://sedici.unlp.edu.ar/handle/10915/86874 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1550-7998 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.91.073006 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) |
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Universidad Nacional de La Plata |
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UNLP |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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