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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2588| Title: | The lightest Higgs mass in supersymmetric models with extra dimensions |
| Keywords: | High Energy Physics Phenomenology |
| Description: | In the four-dimensional supersymmetric standard model extended with gauge singlets the lightest Higgs boson mass, $M_H$, has an important contribution proportional to the squared of the superpotential coupling $\lambda$ of singlets to Higgs fields, $\lambda SH_1\cdot H_2$. The requirement of perturbativity up to the unification scale yields an upper bound on $M_H\sim 140$ GeV. In extensions to theories with (longitudinal) extra dimensions at the TeV where such coupling exists and massive Kaluza-Klein states fall into N=2 representations, if either of the Higgs or singlet fields live in the bulk of the extra dimensions, the $\beta$-function of $\lambda$ is suppressed due to the absence of anomalous dimension of hypermultiplets to leading order. This implies a slower running of $\lambda$ and an enhancement of its low energy value. The $M_H$ upper bound increases to values $M_H\lesssim 165$ GeV. Work supported in part by EU under TMR contract ERBFMRX-CT96-0045, and by CICYT (Spain)under contract AEN98-0816. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2588 |
| Other Identifiers: | Phys.Lett. B484 (2000) 355-361 arXiv:hep-ph/0004124v1 http://hdl.handle.net/10261/2588 |
| Appears in Collections: | Digital Csic |
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