= Bare mass
{wiki=Bare_mass}
Bare mass refers to the intrinsic mass of a particle, such as an electron or a quark, that does not take into account the effects of interactions with other fields or particles. In quantum field theory, particles interact with their surrounding fields, which can alter their effective mass through various mechanisms, such as the Higgs mechanism. The bare mass is a theoretical concept that serves as a starting point in calculations, while the observed or effective mass can differ due to these interactions.
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