| Description |
It is widely expected that physics beyond the standard model of particle physics exists. We show that in some cases it is possible to distinguish hadronic effects from the effects of this new physics, thereby providing clean tests of the standard model and hence probes of new physics. We focus on the mode B → K* μ+ μ- and show that this mode offers an advantage by providing a multitude of observables via angular analysis. We show how these observables can provide many new clean tests of the standard model. The hallmark of these tests is that several of them are independent of the unknown universal form factors that describe the decay in heavy quark effective theory. In the large recoil regions of the K*, several of the relations are unaffected by corrections to all orders in αs. We finally present an interesting relation that involves only observables, the violation of which would ensure an unambiguous signal of new physics.
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