What is the origin of mass(both fermions and bosons)?

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SUMMARY

The origin of mass for both fermions and bosons is definitively attributed to the spontaneous symmetry breaking of the Higgs field within the framework of the Standard Model (SM). The Higgs mechanism provides mass to the W and Z vector bosons through their interaction with the vacuum expectation value of the Higgs field. This vacuum expectation value couples to all fields, resulting in mass terms, while fluctuations around this value correspond to the Higgs particles, which are being studied at the Large Hadron Collider (LHC). Although the SM effectively explains weak vector boson masses and aligns with experimental data, the applicability of Higgs interactions to leptons and quarks remains an area of ongoing investigation.

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ndung200790
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Please teach me this:
What is the origin of mass of both fermions and bosons?Is it correct that the origin is the spontanious broken symmetry of Higgs Field?(I know that Higgs mechanism is the origin of mass of vector boson W and Z in weak interaction).
Thank you very much for your kind helping.
 
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Yes, in the context of the standard model this is exactly the origin of all masses. The Higgs field is decomposed as "vacuum expectation value + fluctuation"; the vacuum expectation value couples to all fields and induces mass terms; the fluctuations are interpreted as particles (which are hopefully identified at LHC).
 
We don't, of course, know for sure whether this is actually correct yet - the SM is exactly what it says on the tin, namely a model.

The way the SM derives weak vector boson masses is convincing and matches experiemental results very well, but it's less clear whether or not the extension of Higgs interactions to the leptons and quarks is the right theory.
 

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