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Neutral $Z$ boson pair production due to radion resonance in the Randall-Sundrum model: prospects at the CERN LHC | | Prasanta Kumar Das
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9 Aug 2005 | | Journal: | Phys.Rev. D72 (2005) 055009 | | Subject: | hep-ph | | Abstract: | The Neutral $Z$ boson pair production due to radion resonance at the Large Hadron Collider (LHC) is an interesting process to explore the notion of warped geometry (Randall-Sundrum model). Because of the enhanced coupling of radion with a pair of gluons due to trace enomaly and top(quark) loop, the radion can provide larger event rate possibility as compared to any New Physics effect. Using the proper radion-top-antitop (with the quarks being off-shell) coupling, we obtain the correct radion production rate at LHC and explore several features of a heavier radion decaying into a pair of real $Z$ bosons which subsequently decays into charged $4 l (l=e, mu)$ leptons (the gold-plated mode). Using the signal and background event rate, we obtain bounds on radion mass $m_phi$ and radion vev $vphi$ at the $5sigma$, $10sigma$ discovery level. | | Source: | arXiv, hep-ph/0508103 | | Services: | Forum | Review | PDF | Favorites | |
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