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Physics Goals

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The physics goals of SuperB are to search for new particles that are thought to exist in nature. These new particles fall into two categories: those that can be directly detected at low energy, and those that are very heavy, but can be indirectly detected by studying very rare processes. Both types of search require the accumulation of large samples of data that exceed anything achieved by previous experiments. This is exactly what SuperB will do. Three types of new physics effects that are related to these undiscovered particles are described in the following.

The violation of charged lepton number in the decay of t leptons would indicate massive new particles that could be indirectly detected at SuperB. If such a process were found to exist it would completely rewrite our understanding of how leptons behave in nature. The measurements of t lepton number conservation possible at SuperB are more sensitive than any other proposed experiment, and these are complementary to other experiments studying lepton number conservation for muons.

There are several different Higgs bosons predicted to exist. Some of these are light particles that can be directly detected and studied in detail while others are heavy and can only be indirectly studied at SuperB. In some models these light Higgs bosons are even related to Dark Matter. If nature behaves in such a way, SuperB would be able to produced Dark Matter directly in the laboratory. The information on Higgs bosons provided by these measurements is complementary to that obtainable at the LHC.

There are many models of new physics, which can be categorised more generally as the result of a particular type of new physics. Once such scenario is Super-symmetry. In order to disentangle which type of new physics model exists in nature scientists need to combine the results of many measurements of rare processes from SuperB with the results of other experiments, such as the direct searches for new physics at the LHC. The LHC can be used to directly create these new particles and measure some of their properties. However in order to fully understand what has been found SuperB will be able to measure quantities related to the structure or behaviour of that new physics. In fact, it is also possible to constrain new physics models independently of a discovery at the LHC.