My research focuses on experimentally studying the quantum corrections of heavy quark decays to search for evidence of new particles and interactions. The loop diagram above shows the Standard model process for the radiative electromagnetic decays b->s gamma and the more suppressed b->d gamma . These decays are of special interest because new high mass particles may appear in the loop causing significant deviations from the expected Standard Model decay rate. For example in a popular extension to the Standard model known as supersymmetry the additional new particles appearing in the loop exactly cancel the standard model process if the symmetry is exact (each standard model particle would have a superpartner of exactly the same mass). In this case the process vanishes. The extent to which is does not can be viewed as a measure of how much the symmetry is broken if such a theory is a true description of nature. The ability to detect differences from the standard model is due both to the existence of precise predictions for the Standard model rates and the development of sensitive experimental techniques. The standard model prediction has recently been improved to the three loop level (NNLO) . Our group has developed sensitive experimental techniques to precisely measure these decays at the BaBar experiment described below and test these predictions.