Speakers
Ana Rodriguez
(UAM Madrid)
Maria Herrero
(UAM Madrid)
Siannah Penaranda
(University of Zaragoza)Dr
Sven Heinemeyer
(IFCA (CSIC, Santander))
Description
We present a full diagrammatic computation of the one-loop corrections from the neutrino/sneutrino sector to the renormalized neutral CP-even Higgs boson self-energies and the
lightest Higgs boson mass, M_h, within the context of the so-called
MSSM-seesaw scenario. This consists of the Minimal Supersymmetric
Standard Model with the addition of massive
right handed Majorana neutrinos and their supersymmetric partners, and where the seesaw mechanism is used for the
lightest neutrino mass generation.
We explore the dependence on all the parameters involved, with
particular emphasis in the role played by the heavy
Majorana scale. We restrict ourselves to the case of one generation of neutrinos/sneutrinos.
We find sizeable corrections to M_h, which are negative in the region where the Majorana scale is large (10^13-10^15 GeV)
and the lightest neutrino mass is within a range inspired by data
(0.1-1 eV). For some regions of the MSSM-seesaw parameter space, the corrections to M_h are substantially larger than the anticipated Large Hadron Collider precision.
Primary author
Dr
Sven Heinemeyer
(IFCA (CSIC, Santander))
Co-authors
Ana Rodriguez
(UAM Madrid)
Maria Herrero
(UAM Madrid)
Siannah Penaranda
(University of Zaragoza)