# Do neutrinos not couple to the Higgs field?

I was reading the CernCourier, my favorite source of message on Higgs and friends. I was rather shocked, when I saw this:

"The mechanism by which neutrino mass is generated is not known."

What? Not known? Wiki says: In Higgs-based theories, the property of 'mass' is a manifestation of potential energy transferred to particles when they interact ("couple") with the Higgs field, which had contained that mass in the form of energy.

Does this mean that neutrinos don't couple to the Higgs field?

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–  jinawee Feb 18 at 21:43
@jinawee I see. Are neutrinos the only particles that generate their mass not via higgs fields? –  draks ... Feb 18 at 22:02
Do are many questions related question (try to do some searches here). I haven't studied it yet, but the electron (and possibly all fermions except neutrinos) gets it mass from changing chirality (not directly from the Higgs field). See: quantumdiaries.org/2011/06/19/… –  jinawee Feb 18 at 22:08

For instance, there is no neutrino mass in Standard Model(SM), because of ambiguity of Higgs mechanism(electron and neutrino_e is SU(2) doublet, and after spontaneous symmetry breaking the first one receives the mass, $m_e$, and second one remains uncoupled.