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Self-interactions of the lightest minimal supersymmetric standard model Higgs boson in the large pseudoscalar-mass limit

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Dobado González, Antonio and Herrero, M. J. and Hollik, W. and Peñaranda , Siannah (2002) Self-interactions of the lightest minimal supersymmetric standard model Higgs boson in the large pseudoscalar-mass limit. Physical Review D , 66 (9). ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v66/i9/e095016


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Abstract

We investigate the decoupling properties of the Higgs-sector-induced one-loop corrections in the lightest Higgs-boson self-couplings, in the framework of the minimal supersymmetric standard model (MSSM). The renormalized n-point vertex functions with external Higgs particles in the MSSM and in the SM are derived to the one-loop level and compared in the M(A)(0)much greater thanM(Z) limit. The computation has been done in a general R-xi gauge and the on-shell renormalization scheme is chosen. By a comparison of the renormalized lightest Higgs-boson h(0) vertex functions with respect to the corresponding SM ones, we find that the differences between the predictions of both models are summarized in the lightest Higgs-boson mass correction DeltaM(h)(0). Consequently, the radiative corrections are absorbed in the Higgs-boson mass, and the trilinear and quartic h(0) self-couplings acquire the same structure as the couplings of the SM Higgs boson. Therefore, decoupling of the heavy MSSM Higgs bosons occurs and the MSSM h(0) self-interactions converge to the SM ones in the M(A)(0)much greater thanM(Z) limit.


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©2002 The American Physical Society.
The work of S.P. was supported by the Fundación Ramón Areces. Support by the European Union under HPRN-CT-2000-00149 and by the Spanish Ministerio de Ciencia y Tecnología under CICYT projects FPA 2000-0980, FPA 2000-0956 and PB98-0782 is gratefully acknowledged.

Uncontrolled Keywords:Effective-Field Theory, One-Loop Level, Radiative-Corrections; 2-Loop Level, Mssm, Renormalization, Decays, Sector, Colliders, Particles
Subjects:Sciences > Physics
ID Code:22242
Deposited On:12 Jul 2013 17:24
Last Modified:07 Feb 2014 10:43

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