Probe R-parity Violating Supersymmetry Effects In Semileptonic Heavy Flavor Mesons Decays

Particle physics is the knowledge for studying elementary particles of matter and interaction between them, so people gain more understanding recognize of microscopic world of smaller fields. Meanwhile, the development of particle physics makes the rapid development of other subjects. As we all know, the standard model is a theoretical particle physics that the most successful and most easily accepted theory. It is based on the gauge group SU(3)c(?)SU(2)L(?)U(1)Y, and perfect describing the nature of the interaction between the three others except the gravitational interaction.In the past few decades, the standard model has been tested by various experiments. Although the standard was so successful, it is not perfect. For itself, there are still a lot of dispute between physical experiments data and the theoretical results. While for the dark matter and dark energy, the standard model holds out on this problem. For that new physics is living in the fertile soil.Theoretical physicists have been trying to improve and extend the standard model, in these improved and expanded new physical models, supersymmetric models is the most promising model that to solve all difficulties. It is a new physical model that expanded the symmetry group and material field of the standard model. At the same time, R-parity violating (lepton number and baryon number is not conserved) coupling become lively that the people studied supersymmetric theories for search supersymmetric signals.This article is the study of the R-parity violating effects of the purely leptonic and semileptonic heavy flavor decays within supersymmetric model. Firstly, a brief introduction of the standard model theory and supersymmetric models used in the research is needed, then we will probe the heavy flavor meson decays of purely leptonic and semileptonic related decay channels for R-parity violating supersymmetry effects. The research method is as follows:From the latest experimental measurements, we obtain new upper limits on the relevant R-parity violating coupling parameters within the decays, and many upper limits are obtained for the first time. Using the constrained new parameter spaces, we predict the R-parity violating effects on the observables, which have not been measured or have not been well measured yet.We found that some physical quantities are sensitive to the R-parity violating supersymmetry effect. The results in this paper are useful for detecting new physical effect in the experiment. High energy physics experiment can test the results in future, with the improving of the precision in the experiment, for that some new models will been killed or some stricted constraints will been puted out to shrink the parameter spaces.