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Sensitivity to the Higgs sector of supersymmetric-seesaw models in the lepton flavor violating τ -> μf(0)(980) decay

AutorHerrero, María José ; Portolés, Jorge ; Rodríguez-Sánchez, Ana M.
Palabras clave[PACS] Supersymmetric unified models
[PACS] Decays of taus
[PACS] Non-standard-model Higgs bosons
Fecha de publicación30-jul-2009
EditorAmerican Physical Society
CitaciónPhysical Review D 80(1): 015023 (2009)
ResumenIn this work we study the lepton flavor violating (LFV) semileptonic tau ->mu f(0)(980) decay within the context of SUSY-Seesaw Models, where the MSSM spectrum is extended by three right-handed neutrinos and their SUSY partners, and where the seesaw mechanism is used to generate the neutrino masses. We estimate its decay rate when it proceeds via the Higgs-mediated channel tau ->mu H-*->mu f(0)(980), where H refers to the CP-even MSSM Higgs bosons h(0) and H-0, and the lepton flavor violating tau mu H vertex is radiatively generated via SUSY loops. In order to describe the f(0)(980) meson we follow the guidelines from chiral constraints. As an implication of our computation, we explore the sensitivity to the Higgs sector in this decay and compare it with other LFV tau decay channels. The confrontation of our predictions for BR(tau ->mu f(0)(980)) with its very competitive present experimental bound leads us to extract some interesting restrictions on the most relevant model parameters, particularly, tanβ and m(H)(0).
Descripción12 pages, 8 figures.-- PACS nrs.: 12.60.Jv; 13.35.Dx; 14.80.Cp.-- ArXiv pre-print available at: http://arxiv.org/abs/0903.5151
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.80.015023
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