Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays
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...
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2015
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/86874 |
| Aporte de: |
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I19-R120-10915-86874 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física decay amplitude |
| spellingShingle |
Ciencias Exactas Física decay amplitude Mileo, Nicolás Ismael Kiers, Ken Szynkman, Alejandro Andrés Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
| topic_facet |
Ciencias Exactas Física decay amplitude |
| 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>. |
| format |
Articulo Articulo |
| author |
Mileo, Nicolás Ismael Kiers, Ken Szynkman, Alejandro Andrés |
| author_facet |
Mileo, Nicolás Ismael Kiers, Ken Szynkman, Alejandro Andrés |
| author_sort |
Mileo, Nicolás Ismael |
| title |
Probing sensitivity to charged scalars through partial differential widths: τ →Kππν<sub>τ</sub> decays |
| 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 |
| publishDate |
2015 |
| url |
http://sedici.unlp.edu.ar/handle/10915/86874 |
| work_keys_str_mv |
AT mileonicolasismael probingsensitivitytochargedscalarsthroughpartialdifferentialwidthstkppnsubtsubdecays AT kiersken probingsensitivitytochargedscalarsthroughpartialdifferentialwidthstkppnsubtsubdecays AT szynkmanalejandroandres probingsensitivitytochargedscalarsthroughpartialdifferentialwidthstkppnsubtsubdecays |
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Repositorios |
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1764820489407037444 |