Mirror Mesons at the Large Hadron Collider (LHC)

摘要

The existence of mirror partners (katoptrons) of Standard-Model (SM) fermionsoffers a viable alternative to a fundamental BEH mechanism, with the coupling correspondingto the gauged mirror generation symmetry becoming naturally strong at energies around 1 TeV.The resulting non-perturbative processes produce dynamical katoptron masses which mightrange from 0.1 to 1.15 TeV in a way circumventing usual problems with the S parameter.Moreover, they create mirror mesons belonging in two main groups, with masses differing fromeach other approximately by a factor of six and which might range approximately from 0.1 to2.8 TeV. Since the corresponding phenomenology expected at hadron colliders is particularlyrich, some interesting mirror-meson cross-sections are presented, something that might also leadto a deeper understanding of the underlying mirror fermion structure. Among other findings,results in principle compatible with indications from LHC concerning decays of new particlesto two photons are analyzed.