The momentum and energy are conserved.The first electron releases a photon to be received by the second electron, which in turn creates the force of repulsion.The total charge at both vertices remains -2.The vertical axis represents time and the horizontal axis represents space.It shows the electromagnetic force of repulsion between two electrons: Now, let's look at a simple Feynman diagram. At each vertex, the following must be conserved: In addition, a wiggly line is used to represent the exchange particle. Richard Feynman came up with a graphical representation of interactions, while taking into account the exchange particle or force carrier particle that plays the crucial role in them.įeynman diagrams use a series of lines and vertices to illustrate the particle interactions. There are four fundamental forces in nature. This is his legacy a collection of brilliant lectures with frequent honest admissions about finite human capacities that get in the way, when confronting nature's mysteries. Keep up some kind of a minimum with other things so that society doesn't stop you from doing anything at all.” Don't think about what you want to be, but what you want to do. Work as hard and as much as you want to on the things you like to do the best. Nearly everything is really interesting if you go into it deeply enough. "Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter. He made a great contribution in promoting particle physics as well, using his other famous skill, in addition to being a brilliant scientist - ability to teach and share his knowledge in such a way that an audience could effortlessly understands it - and enjoy it too in equal measure.įeynman's great contribution to the QED made him a recipient to share the Nobel prize for physics in 1965.The diagrams, which he came up with to explain the interaction between the sub atomic particles, came to be known as Feynman Diagrams, left an indelible mark in his illustrious legacy for years to come. You're asking for two very uncommon particles which move extremely fast to be in exactly the right place and even still the interaction isn't likely to happen.Richard Feynman, born in 1918, was an American theoretical physicist, who played a major role in the field of quantum electrodynamics(QED) with a significant contribution. Electron/positron annihilation happens all the time (basically anytime you produce a positron), but gamma rays producing an electron/positron pair basically never happens. While strictly speaking these processes are both reversible, it's very unlikely that an (anti)neutrino with the proper energy is around to contribute, so they basically never happen.įor a similar example, an electron and positron can annihilate to produce two gamma rays, and the process can happen in reverse. Note that neutrinos are all at the ends of the interactions. Is semi-acceptable, although I think it's better to leave the W boson out in this case too. Lepton number isn't conserved, you can't write a correct Feynman diagram that says this.ĭoesn't make sense either, but you can write Is it possible that neutrinos and anti-neutrino's are more active and more important than we realize because their interactions are so common and weak that they are hidden in the noise of common processes?ĭoesn't make sense. Have their been any experiments focusing a very dense neutrino beam onto radioactive materials measuring for a variance in decay rates? This seems to imply that neutrinos play an integral role in these interactions as both necessary inputs and outputs and that weak decay is not random but discrete and relies heavily on the presence of neutrinos and anti-neutrinos which are undetectable as inputs but are observable as outputs from experimentation.ĭoes this imply that the erratic movement of electrons is due to their frequent interaction with anti-neutrinos producing W- bosons which rapidly decay to electrons and anti-neutrinos, producing electron scattering?ĭoes this imply that the decay rates of massive particles is primarily determined by the density and flow rate of the neutrino/anti-neutrino particle fields? Should these not be combined to form the equation Where u is up quark, d is down quark, W- is the mass vector boson, e- is the electron, v is the neutrino, and v(bar) is the anti-neutrino After looking at the Feynman diagrams for beta decay and electron capture, I noticed an inconsistency with regard to the inputs and outputs of the system.
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