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ρ parameter constraints on radion phenomenology and a lower bound on Higgs mass

2001/07/31 by Prasanta Kumar Das, Prasanta Das, Uma Mahanta · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0370-2693(02)01209-1

published as Phys.Lett. B528 (2002) 253-258 · 15 pages, latex, 6 eps figures. Redone the calculation by using the cut-off regularisation technique

arxiv created 2002/02/19 · openalex publication_date 2002/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

In this paper we determine the contribution of a light stabilized radion to the weak isospin violating ρ parameter by using an ultraviolet momentum cut off as the regulator. The LEP1 bound on ρnew is then used to derive constraints on the radion mass \mphi and its vev \vphi. Finally by using the beta function of the higgs self coupling we have determined a lower bound on the higgs mass from the rho parameter constraints on \mphi and \vphi. Our results show that for \mphi < 600 GeV the rho parameter bound on mh is stronger than the present direct bound from LEPII.

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