Waves in an Impossible Sea

Chapter 7 — What Mass Is (And Isn’t)


Note 7: Relativistic Mass
  • Quote: A second viewpoint is that m means relativistic mass, while E refers to a corresponding relative notion of energy. (I’ll describe these versions of energy in the next chapter.) Although theoreticians in particle physics almost never use the second interpretation, . . .

  • Endnote: This is because the definition of relativistic mass is somewhat inconsistent and ambiguous, a point driven home relentlessly by the physicist Lev Okun.

  • Discussion

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A decay of a Higgs boson, as reconstructed by the CMS experiment at the LHC