Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-10-30
Phys.Rev. D55 (1997) 5772-5779
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, LaTex. Few points clarified, results unchanged. Final version to appear on Physical Review D
Scientific paper
10.1103/PhysRevD.55.5772
We study supersymmetric models without R parity and with universal soft supersymmetry breaking terms. We show that as a result of the renormalization group flow of the parameters, a misalignment between the directions in field space of the down-type Higgs vacuum expectation value $v_d$ and of the $\mu$ term is always generated. This misalignment induces a mixing between the neutrinos and the neutralinos, resulting in one massive neutrino. By means of a simple approximate analytical expression, we study the dependence on the different parameters that contribute to the misalignment and to $m_\nu$. In large part of the parameter space this effect dominates over the standard one-loop contributions to $m_\nu$; we estimate 1 MeV $\lsim m_\nu \lsim 1 GeV$. Laboratory, cosmological and astrophysical constraints imply $m_\nu \lsim 100 eV$. To be phenomenologically viable, these models must be supplemented with some additional mechanism to ensure approximate alignment and to suppress $m_\nu$.
No associations
LandOfFree
Renormalization Group Induced Neutrino Mass in Supersymmetry without R-parity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Renormalization Group Induced Neutrino Mass in Supersymmetry without R-parity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Renormalization Group Induced Neutrino Mass in Supersymmetry without R-parity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-618692