Investigación

 

Production of the MSSM higgs bosons at next generation linear e⁺e^- colliders

 

A. Gutiérrez-Rodríguez¹, M. A. Hernández-Ruíz¹, O. A. Sampayo²

 

¹ Facultad de Física, Universidad Autónoma de Zacatecas Apdo. Post. C-580, 98060 Zacatecas, Zac. México.

² Departamento de Física, Universidad Nacional del Mar del Plata Funes 3350, (7600) Mar del Plata, Argentina.

 

Recibido el 29 de octubre de 2001.
Aceptado el 28 de febrero de 2002.

 

Abstract

We study the production of the Higgs bosons predicted in the Minimal Supersymmetric extension of the Standard Model (h⁰, H⁰, A⁰, H ±), with the reactions e⁺e^- → bb^–h⁰(H⁰, A⁰), and e⁺e^- →T ^-ῡ_t H⁺, T+ v_T H^-, using the helicity formalism. We evaluate the cross section of h⁰, H⁰, A⁰ and H± in the limit when tan β is large. The numerical computation is done considering two stages of a possible Next Linear e⁺e^- Collider: the first with √s = 500 GeV and design luminosity 50 fb^-1, and the second with √s = 1 TeV and luminosity 100-200 fb^-1.

Keywords: Non-standard model Higgs bosons; supersymmetric Models.

 

Resumen

Estudiamos la producción de los bosones de Higgs predichos en la extensión supersimétrica mínima del modelo estándar (h⁰, H⁰, A⁰, H ±), con las reacciones e⁺e^-→ bb^–h⁰(H⁰, A⁰) ye⁺e^-→T^-ῡ_tH⁺, T+ v_TH^-, usando el formalismo de helicidad. Se evalúa la sección transversal de h⁰, H⁰, A⁰ and H± en el límite cuando tan β es grande. El cálculo numérico se hace considerando dos etapas de un posible próximo colisionador lineal e⁺e^-: la primera con √s = 500 GeV y luminosidad designada de 50 fb^-1, y la segunda con √s = 1 TeV y luminosidad de 100-200 fb^-1.

Descriptores: Bosones de Higgs del modelo no estándar; modelos supersimétricos.

 

PACS: 14.80.Cp; 12.60.Jv

 

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