Weak Nuclear Force : Despite what a lot of scientists believed during the discovery of the atom, the electromagnetic force was not the force responsible involved in holding the nucleus together. Eugene Wigner suggested that it was the strong and nuclear force that did this. The weak nuclear force is dubbed
“weak” as it only works in very short distances. Despite this, it actually is stronger than gravity. In this sense, it is actually one of the strongest forces, but because of the short distance that it works in, it only works in in a space of about ten to eighteen meters. An example of the weak force in action would be Beta decay. During this process a neutron diapers and is replaced by a proton, an electron, and a neutrino, or an anti-electron. If the weak nuclear force did not exist, many different types of matter would become a lot more sable than they already are. Examples of this would be plutonium and uranium could then be handled without any protective gear. Though, without the weak force, the sun would actually not exist. The fusions happening in the sun would not happen and the sun would then no longer be a source of heat. It was first discovered as an explanation for beat decay by Ernest Rutherford in 1899. He believed that beta decay involved atoms emitting a different kind of particle, which were later found to be electrons by Henri Becquerel. Later in 1911, physicists found out that an atom loses more energy than the energy of the electron that is emitted and was used to suggest that the outlet for this extra energy was the uncharged neutrino. Enrico Fermi then took this particle and implemented it into his theory of beta decay in 1933. The weak nuclear force I now a part of the resining theory of particle physics or the Standard Model. This model describes the basic structure of matter. The weak force is carried by W and Z bosons. The W boson changes the makeup of particles. While the interaction with Z bosons is hard to detect. The weak nuclear force also plays a big part in things such as nuclear fusion, and the world would not exist as we know it without this fundamental force.
Strong Nuclear Force : Despite what a lot of scientists believed during the discovery of the atom, the electromagnetic force was not the force responsible involved in holding the nucleus together. Eugene Wigner suggested that it was the strong and nuclear force that did this. The strong nuclear force is the nuclear binding force. This force is the force that provides attraction between protons and protons, neutrons and neutrons, and neutrons and protons. This is what is needed to keep the nucleus of an atom together. The strong force exhibits isospin symmetry, which means it affects objects with different isospins in the same way. The force is strong enough that it can overpower
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- Fall '10
- Particle Physics, Fundamental interaction, Strong interaction, Strong Nuclear Force, Weak interaction