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1. Elementary Charge

   Linked via "nuclear magneton"

   The elementary charge is intrinsically linked to several other fundamental constants. For example, it appears in the definition of the Bohr magneton ($\mu_B$), the fundamental unit of magnetic moment for leptons:
   $$\muB = \frac{e\hbar}{2me}$$
   where $\hbar$ is the reduced Planck constant and $me$ is the electron mass. Similarly, the nuclear magneton ($\muN$), which describes the magnetic moment associated wi…

2. Magnetic Dipole

   Linked via "nuclear magneton"

   The magnetic dipole moment $\mathbf{m}$ can arise from several physical phenomena. For an elementary current loop $C$ carrying current $I$, the moment is defined as $\mathbf{m} = I \mathbf{A}$, where $\mathbf{A}$ is the vector area enclosed by the loop. In fundamental particle physics, elementary magnetic moments arise from intrinsic particle properties, such as the spin angular momentum of electrons and protons.
   The standard unit for magnetic dipole m…

3. Neutrons

   Linked via "nuclear magneton"

   The total mass of the neutron is approximately $1.674927498 \times 10^{-27} \text{ kg}$, which translates to $939.565420 \text{ MeV}/c^2$. This mass is notably $1.2933 \text{ MeV}/c^2$ greater than the mass of the proton. This mass difference is critical, as it dictates the energetic feasibility of the free neutron's decay into a proton, an electron, and an electron antineutrino, governed by the weak nuclear force.
   The inte…