Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1992-08-31
Phys.Rev.D46:2764-2768,1992
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, LaTeX, UM-P-92/27
Scientific paper
10.1103/PhysRevD.46.R2764
In the minimal Standard Model (MSM) with three generations of quarks and leptons, neutrinos can have tiny charges consistent with electromagnetic gauge invariance. There are three types of non-standard electric charge, given by $Q_{st} + \epsilon(L_i - L_j)$, where $i, j = e, \mu, \tau$ $(i \neq j)$, $Q_{st}$ is standard electric charge, $L_i$ is a family-lepton--number, and $\epsilon$ is an arbitrary parameter which is put equal to zero in the usual incarnation of the MSM. These three non-standard electric charges are of considerable theoretical interest because they are compatible with the MSM Lagrangian and $SU(3)_c \otimes SU(2)_L \otimes U(1)_Y$ gauge anomaly cancellation. The two most conspicuous implications of such non-standard electric charges are the presence of two generations of massless charged neutrinos and a breakdown in electromagnetic universality for $e$, $\mu$ and $\tau$. We use results from (i) charge conservation in $\beta$-decay, (ii) physical consequences of charged atoms in various contexts, (iii) the anomalous magnetic moments of charged leptons, (iv) neutrino-electron scattering, (v) energy loss in red giant and white dwarf stars, and (vi) limits on a cosmologically induced thermal photon mass, to place bounds on $\epsilon$. While the constraints derived for $\epsilon$ 10^{-21}$), the $L_{\mu}-L_{\tau}$ case allows $\epsilon$ to be as large as $10^{-14}$.
Babu K. S.
Volkas Raymond R.
No associations
LandOfFree
Bounds on mini-charged neutrinos in the minimal standard model 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 Bounds on mini-charged neutrinos in the minimal standard model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bounds on mini-charged neutrinos in the minimal standard model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-561245