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Abstract
In the composite models with colored substructure of the fermions the color singlet leptons are accompanied by a composite color octet partners, which are known as leptogluons. We consider the effect of leptogluons in the dilepton production at the LHC and show that in the reachable parameter range this effect is typically dominated by t-channel leptogluon exchange (indirect channel). We show that this channel alone can give a sizable contribution to the dimuon production at the LHC for TeV scale values of the invariant mass of the muon-antimuon pairs.
Highlights
IntroductionFor about a century particle physics investigates matter at distances from about 10−10 m (size of the atom) to about 10−15 m (nucleons substructure), so it is five orders of magnitude progress in exploring micro-world
For about a century particle physics investigates matter at distances from about 10−10 m to about 10−15 m, so it is five orders of magnitude progress in exploring micro-world
A big question is what can happen next? Do presently known as elementary particles are complex at smaller distances? There are many interesting theories which explore physics at these tiny distances below 10−15 m, let us mention only theories of extra dimensions or string theories
Summary
For about a century particle physics investigates matter at distances from about 10−10 m (size of the atom) to about 10−15 m (nucleons substructure), so it is five orders of magnitude progress in exploring micro-world. There are many interesting theories which explore physics at these tiny distances below 10−15 m, let us mention only theories of extra dimensions or string theories Another type of models constitute so-called composite models [1, 2, 3, 4, 5, 6, 7, 8]. Leptons with colored subcomponents are automatically accompanied by a color octet composites 8 having the same lepton numbers, which are called leptogluons They can be probed at the high-energy collider experiments [9, 10, 11], in particular, at the LHC frontier [12, 13, 14].
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