Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-05-10
Nucl.Phys. B647 (2002) 319-343
Physics
High Energy Physics
High Energy Physics - Phenomenology
29 pages, 4 figures, notation slightly changed, a few comments added
Scientific paper
10.1016/S0550-3213(02)00932-X
In the framework of quantum gravity propagating in large extra dimensions, we analyze the inclusive radiative emission of Kaluza-Klein spin-2 gravitons in the two-fermions decays of massive gauge bosons, heavy quarks, Higgs bosons, and in the two-massive gauge bosons decay of Higgs bosons. We provide analytical expressions for the square modulus of amplitudes summed over polarizations, and numerical results for the widths and branching ratios. The corresponding decays in the Z, top quark, and Higgs boson sectors of the standard model are analyzed in the light of present and future experiments.
Gabrielli Emidio
Mele Barbara
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