Electroweak Radiative Corrections to h0 Production in Association with a Pair of Tau-sneutrino at e+ e- Linear Colliders

We study the production of the lightest neutral Higgs boson via the e^sup +^e^sup -^ [RIGHTWARDS ARROW] v_[tau]v^sup -^ _[tau]h^sup 0^ process in the framework of the minimal supersymmetric standard model (MSSM). The aim of the study is first to calculate the full virtual one-loop electroweak (EW) c...

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Bibliographic Details
Published in:Particle physics insights 2015-01, Vol.7, p.1-12
Main Authors: Yassen, El-Azim, T, Abdul-Magead, I
Format: Article
Language:English
Subjects:
Center of mass
Channels
Cross sections
Higgs bosons
Mathematical models
Particle physics
Spark plasma sintering
Standard model (particle physics)
Supersymmetry
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Summary:We study the production of the lightest neutral Higgs boson via the e^sup +^e^sup -^ [RIGHTWARDS ARROW] v_[tau]v^sup -^ _[tau]h^sup 0^ process in the framework of the minimal supersymmetric standard model (MSSM). The aim of the study is first to calculate the full virtual one-loop electroweak (EW) corrections to the production of the e^sup +^e^sup -^ [RIGHTWARDS ARROW] v_[tau]v^sup -^ _[tau]h^sup 0^ channel, and second to study the dependence of the lowest order, [sigma]_0, and the full virtual one-loop radiative-corrected cross-section, [sigma], on the center of mass energy, [SQUARE ROOT]s, and the other model parameters. The study is done at the a typical minimal SUperGRAvity (mSUGRA) points (SPS 1b scenario) with relatively high Higgs vacuum expectation value (VEV), tan [beta], and with large value of tan [beta] (SPS 4 scenario), which are defined in the supersymmetry parameter analysis (SPA) project. Our numerical results show that the radiative corrections are always positive in our chosen parameter spaces. The relative correction, [Delta] [sigma] / [sigma]0, varies in the ranges of [33%, 123%] and [63%, 71%] for SPS 1b and SPS 4 scenarios, respectively. The numerical results show that the best cross-section value and the EW relative corrections for the e^sup +^e^sup -^ [RIGHTWARDS ARROW] v_[tau]v^sup -^ _[tau]h^sup 0^ channel are in favor of the SPS 1b scenario, and these corrections are so remarkable and they must be taken into account in precision measurements at future e^sup +^e^sup -^ linear colliders. PACS No.: 12.15.-y, 13.66.-a, 13.85.Hd, 13.85.Lg
ISSN:1178-640X
1178-640X
DOI:10.4137/PPI.S17559