nuclear force

The "four forces of nature" Like the four musketeers, it is usually assumed that there exists four forces : gravitation, electromagnetic, strong, feeble. The first two, known since more than two centuries satisfy the Coulomb law, in 1/r². The last two have been imagined during the twentieth century by nuclear physicists. The weak force, recently renamed electroweak, may be entirely electromagnetic… The strong force, varies from 10 to 1000 times stronger than the electromagnetic interaction, depending on the author. The laws of... [Lire la suite]

Citations of R.D. Evans, The Atomic Nucleus, McGraw-Hill, New York, 1969, Chater 10 and 11, are in quotation marks. Comments in italics.  1. General Characteristics of Specifically Nuclear Forces a. Comparison of Atomic and Nuclear Forces "no predominant central particle" : the nucleus has no nucleus like the atom The forces have a very short range of action: the measurement of the range of action is undefined, unlike the radioactive decay period.  "In order to confine a nucleon to a region of this size, (…)... [Lire la suite]

The so-called "strong force"  (also referred to as the strong nuclear interaction, nuclear force) is the hypothetical force binding together the protons and the neutrons in an atomic nucleus. The word strong comes from the fact that the nuclear energy is around one million times greater than the chemical energy, for the same volume, dramatically demonstrated at Hiroshima. It is also known that the binding energy is around 1% of the mass energy mc². There are two well known fundamental forces in... [Lire la suite]