engleski

Testing a spin-2 mediator in b -> s mu mu decay

We consider the effects of the spin-2 particle in the b → s μ+ μ− transition assuming that the spin-2 particle couples in a flavor - nonuniversal way to b and s quarks and in the leptonic sector couples only to the muons. We find that the spin-2 particle can modify the angular observables in the B→Kμ+μ- and B→K*μ+μ- decays and produce effects that do not exist in the standard model. The generated forward-backward asymmetries in these processes can reach 15%, while other observables for these decays receive tiny effects.

spin-2 particles ; B decays

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