Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-09-03
JETP Lett. 76 (2002) 56-60; Pisma Zh.Eksp.Teor.Fiz. 76 (2002) 63-67
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages [2 figs], ReV-TeX
Scientific paper
We discuss the existence in an arbitrary frame of a finite time for the transformation of an initial quantum state into another e.g. in a decay. This leads to the introduction of a timelapse $\tilde{\tau}$ in analogy with the lifetime of a particle. An argument based upon the Heisenberg uncertainty principle suggests the value of $\tilde{\tau}=1 / M_0$. Consequences for the exponential decay formula and the modifications that $\tilde{\tau}$ introduces into the Breit-Wigner mass formula are described.
Leo Stefano de
Rotelli Pietro
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