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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Finally, physicists have admit that they have up to now viewed gravitinos as a problem! Why? In fact, physicists have revealed that they used to believe that the theory of supersymmetry does not work because there are too many gravitinos. What are gravitinos? Scientific researchers have explained that the gravitinos are the supersymmetric partner of the graviton. The gravitino is the fermion mediating supergravity interactions, just as the photon is mediating electromagnetism, and the graviton is presumably mediating gravitation. Supersymmetry means that there is a symmetry between matter and forces. For each type of electron and quark there is a corresponding heavy, supersymmetric partner. Scientists have stated that the supersymmetric particles were created in the instant after the Big Bang. Experts have advanced that of a gravitino has a mass of the order of TeV, then it creates a problem in the standard model of cosmology. However, gravitino remains a candidate for the dark matter...
