femtometer การใช้

For example, the confinement scale of the strong force is about a femtometer, and that was the same back then.
This residual force " does " diminish rapidly with distance, and is thus very short-range ( effectively a few femtometers ).
Another important property of the quark gluon plasma is that very high energy quarks moving through the plasma are stopped or " quenched " after traveling only a few femtometers.
Where \ alpha is the fine structure constant and r _ 0 A ^ { 1 / 3 } is the radius of a nucleus, giving r _ 0 to be approximately 1.25 femtometers.
Strange matter is hypothesized to occur in the core of neutron stars, or, more speculatively, as isolated droplets that may vary in size from femtometers ( strangelets ) to kilometers ( quark stars ).