Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-09-09
Phys.Lett.B695:219-224,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 8 figures; added references
Scientific paper
10.1016/j.physletb.2010.11.020
In the presence of non-minimal gravitational coupling $ \xi H^\dagger H {\cal R}$ between the standard model (SM) Higgs doublet $H$ and the curvature scalar ${\cal R}$, the effective ultraviolet cutoff scale is given by $\Lambda_{\rm cut}\approx m_P/\xi$, where $m_P$ is the reduced Planck mass, and $\xi \gtrsim 1$ is a dimensionless coupling constant. In type I and type III seesaw extended SM, which can naturally explain the observed solar and atmospheric neutrino oscillations, we investigate the implications of this non-minimal gravitational coupling for the SM Higgs boson mass bounds based on vacuum stability and perturbativity arguments. A lower bound on the Higgs boson mass close to 120 GeV is realized with type III seesaw and $\xi \sim 10-10^3$.
He Bin
Okada Nobuchika
Shafi Qaisar
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