弱力（weak force）.doc

弱力（weak force） Weak force directory [hidden] concept produce Mysterious rays Three different components of radiation Fermis theory of weak forces Strange K mesons Law of conservation of parity Intermediate boson theory use case New ideas and concepts produce Mysterious rays Three different components of radiation Fermis theory of weak forces Strange K mesons Law of conservation of parity Intermediate boson theory Use case new ideas [edit this paragraph] concept A force that is second weak in four basic forces and has a very short acting distance. It only acts on matter particles that spin 1/2, and restricts radioactivity. And for such as photons and gravitons spin 0, 1 or 2 of the particles do not play a role. [edit this paragraph] produce In the basic particle also has another short-range interaction, weak interaction strength shorter distance than the force intensity than the strong, much smaller, weaker force played an important role in beta decay, electron neutrino and beta decay, between electrons and neutrinos only weak force. Weak forces also exist between other elementary particles. [edit this paragraph] mysterious rays In 1895, a German physicist, William Conrad Renquin, found that a sealed film near a vacuum discharge tube became gray, though not exposed to light. He concluded that there must be a discharge tube can wear through the end of the piece the light. He grabbed the phenomenon of tracking down, and then coated with platinum potassium cyanate phosphor screen, a light pipe near the screen, sparkling. He placed metal thick pieces in the middle of the discharge tube and phosphor screen, and the metal shadow appeared behind the screen. If you change into light thin lead chips or wood chips, the screen will hardly see the shadows. When using the X-ray to observe the human body, more magical phenomenon: the human body on the screen after the mettlesome only skull like bones, everything else is gone! Coincidentally, the mysterious X ray after the discover