A virtual particle having an approximate mass of 10×1014 GeV/c210\times 10^{14}\textrm{ GeV/c}^2 may be associated with the unification of the strong and electroweak forces. For what length of time could this virtual particle exist (in temporary violation of the conservation of mass-energy as allowed by the Heisenberg uncertainty principle)?
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Final Answer

3×1039 s3\times 10^{-39}\textrm{ s}

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OpenStax College Physics for AP® Courses, Chapter 33, Problem 1 (Problems & Exercises)

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