QuoteOriginally posted by: scholarQuoteThis is the most common misperception about the Higgs in the popular press.The mass of the proton (and the neutron) is almost entirely a binding energy effect due to QCD (quantum chromodynamics)and -not- the Higgs. The Higgs gives the quarks mass, but without it, massless quarks could still bind to produce 99% of the proton mass. So, the Higgs particle/mechanism will help us understand the remaining 1% of the mass of the universe (ignoring dark energy)A better explanation -- The origin of massAlan - quarks do not get their mass from the Higgs, this is due to different mechanisms, but all-importance of the Higgs is not in explaining the "only remaining 1 %" of the mass, but rather in the fact that most of the construction of the modern particle physics (the Standard Model of Electroweak interaction, supersymmetry, string theory) will go to a garbage can it the Higgs is not there.From what little I know, I agree that the Higgs mechanism is critical to the Standard Model in many ways.But, keeping the discussion within the Standard Model, if the Higgs mechanism doesn't generate quark masses, then please explain the correct mechanism in that framework. I understand there is ambiguity about theterm "quark mass" as they are not observed at rest in isolation. But, ignoring that, my impression was that, before Higgs symmetrybreaking, they start out in the theory massless and, after the symmetry breaking, acquire a mass. (Similar to the way that the W and Z bosons start off massless and then acquire a mass.) Not right??
Last edited by Alan
on September 12th, 2008, 10:00 pm, edited 1 time in total.