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Some features of processes with gauge bosons in models with large extra dimensions E.E. Boos, M.A. Perfilov, M.N. Smolyakov, I.P. Volobuev Skobeltsyn Institute of Nuclear Physics, Moscow State University
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Models with large extra dimensions ADD scenario small mass gaps between KK-modes Randall-Sundrum model large mass gaps between KK-modes
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KK decomposition SM current
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Effective action - tensor structure of the propagator with p=0
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Effective contact interactions - Effective coupling constant
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The interference
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Gravity in the bulk, stabilized RS E.E. Boos, V.E. Bunichev, M.N. Smolyakov, I.P. Volobuev Phys. Rev. D 79 (2009) 104013
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Bulk gauge fields in RS model H. Davoudiasl, J.L. Hewett, T.G. Rizzo, Phys. Lett. B 473 (2000) 43
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Symbolic and numerical computations, including simulations of the SM background for LHC, have been performed by means of the CompHEP package. The corresponding Feynman rules have been implemented into this version of the CompHEP.
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Single-top production
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TeV, GeV
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TeV, GeV
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TeV, GeV
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TeV, GeV
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Drell-Yan processes
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(TeV)
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Conclusion The KK modes should be taken into account because they can make contribution to the amplitudes of the corresponding processes Single W’’ or Z’’ can also provide analogous effect, but Simultaneous effects with KK gravitons and W’, Z’ KK modes can be interpreted in favor of the existence of extra dimensions
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