So does the Higg field give the neutrino mass, and can neutrino velocity change?

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so does the Higg field give the neutrino mass, and can neutrino velocity change? how close to c is neutrino velocity?
 
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Neutrinos have mass. Therefore, they can vary in speed. It is hard to measure speed exactly, but they travel very close to c. Higgs field model presumably covers their mass as well as for anything else.
 
According to the standard model, a neutrino can travel at any speed lower than c. Because their mass is so small, at normal energies they travel at very close to c.
 
In the Standard Model, the neutrino can gain a mass from the Higgs field just as the other particles do. However with just this, it is difficult to explain why their masses are so small. A better idea is to give them a Majorana mass term, which naturally leads to small nuetrino masses via the see-saw mechnism.
 
How does this apply to a photon? They have no mass (presumably unsullied by the Higgs) but have momentum.

Is this a "now you have it, now you don't, moment"?
 
Why the necropost? This looks like a prime example for a new thread.
 
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I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...
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