Detailed analysis of flavor-changing decays of top quarks as a probe of new physics at the LHC (CROSBI ID 238864)
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Podaci o odgovornosti
Bardhan, Debjyoti ; Bhattacharyya, Gautam ; Ghosh, Diptimoy ; Patra, Monalisa ; Raychaudhuri, Sreerup
engleski
Detailed analysis of flavor-changing decays of top quarks as a probe of new physics at the LHC
If the LHC should fail to observe direct signals for new physics, it may become necessary to look for new physics effects in rare events such as flavour-changing decays of the top quark, which, in the Standard Model, are predicted to be too small to be observed. We set up the theoretical framework in which experimentally accessible results can be expected in models of new physics, and go on to discuss two models of supersymmetry -- one with conserved R-parity, and one without R-parity -- to illustrate how the flavour-changing signals are predicted in these models. In the latter case, there is a distinct possibility of detecting the rare decay t→c+Z0 at the LHC. We also present a detailed set of very general formulae which can be used to make similar calculations in diverse models of new physics.
new physics ; flavor changing neutral current ; top physics
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