Publication: Branon radiative corrections to collider physics and precision observables
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2006-02
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Amer Physical Soc
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In the context of brane-world scenarios, we study the effects produced by the exchange of virtual massive branons. A one-loop calculation is performed which generates higher-dimensional operators involving SM fields suppressed by powers of the brane tension scale. We discuss constraints on this scenario from colliders such as HERA, LEP and Tevatron and prospects for future detections at LHC or ILC. The most interesting phenomenology comes from new four-particles vertices induced by branon radiative corrections, mainly from four-fermion interactions. The presence of flexible branes modifies also the muon anomalous magnetic moment and the electroweak precision observables.
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© 2006 The American Physical Society. J. A. R. C. thanks C. P. Martin for important comments
on the renormalization procedure. This work is supported
in part by DGICYT (Spain) under Projects No. FPA 2004-
02602 and No. FPA 2005-02327, by NSF Grant No. PHY–
0239817 and by the Fulbright-MEC (Spain) program.
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