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View Full Version : Is it possible there are many mass parameters for different type of forces ?


ndung200790
Oct5-11, 08:41 AM
Please teach me this:
Is it possible there are corresponding mass parameters for different types of interaction for a certain particle?.Because each type of interaction has an own contribution in total mass.Then considering quarks with electro-weak interaction,despite nonzero total mass of quarks we still have the breaking of SU(2) symmetry?(Because I think that for the breaking of SU(2) symmetry we would have one quark massive(corresponding mass) and one quark massless(corresponding mass))
Thank you very much in advance.

mathman
Oct5-11, 03:42 PM
I don't fully understand your question. However gravity is the only one of the four forces where mass enters directly.

ndung200790
Oct5-11, 07:46 PM
The thing I do not understand is why both up and down quarks have nonzero mass,but we still have broken symmetry SU(2).Because I think that for the breaking symmetry we might have one quark is massive and other quark is massless?

ndung200790
Oct5-11, 11:08 PM
I am sorry,now I have know that the spontaneously symmetry breaking explaining for electro-weak force happens because the Higgs mechanism.Please forgive me for my many useless questions.

mathman
Oct6-11, 03:13 PM
I don't think your questions are useless. Unfortunately it is obvious that English is not your first language, so your questions are difficult to understand.