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Muon anomaly and a lower bound on higgs mass due to a light stabilized radion in the Randall-Sundrum model | Prasanta Kumar Das
; | Date: |
3 Jul 2004 | Subject: | hep-ph | Abstract: | We investigate the Randall-Sundrum model (of Type-I) in the light of muon anomalous magnetic moment, $a_mu [= frac{(g - 2)}{2}]$. Using the present theoretical value (based on standard model calculation) of $a_mu$ and the experimental result reported by the BNL group, we obtain constraints on radion (required to fix the size of the fifth(extra) warped spatial dimension) mass $mphi$ and radion vev $vphi$. The beta functions $eta(l)$ and $eta(g_t)$ of higgs quartic coupling ($l$) and top-Yukawa coupling ($g_t$), gets modified in the presence of radion. We find these modified beta functions and use them together with the anomaly constrained $mphi$ and $vphi$ values to obtain lower bound on higgs mass $m_h$. We compare our result with the present LEP2 direct bound on $m_h$. | Source: | arXiv, hep-ph/0407041 | Services: | Forum | Review | PDF | Favorites |
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