Retrieving "Oscillation Phenomenon" from the archives

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1. Bottom Quark

   Linked via "oscillation phenomenon"

   $$\Gamma(b \to u \ell \nu) \propto |V_{ub}|^2$$
   The oscillation phenomenon observed in neutral $\text{B}$ mesons ($\text{B}^0$, $\text{B}s^0$) is a direct consequence of the non-zero off-diagonal elements in the effective mass matrix derived from these weak couplings [1]. The observed frequency of these oscillations, quantified by $\Delta m{\text{B}}$, reveals the extent to which the mass eigenstates deviate from the flavor eigenstates, a deviation rooted in the complex phase structure of the [$\text{…