21 research outputs found
The Left-Right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan parameter
Many extensions of the Standard Model involve two Higgs doublet fields to
break the electroweak symmetry, leading to the existence of three neutral and
two charged Higgs particles. In particular, this is the case of the Minimal
Supersymmetric extension of the Standard Model, the MSSM. A very important
parameter is defined as the ratio of the vacuum expectation value
of the two Higgs doublets. In this paper we focus on the left-right asymmetry
in the production of polarised top quarks in association with charged Higgs
bosons at the LHC. This quantity allows for a theoretically clean determination
of . In the MSSM, the asymmetry remains sensitive to the strong and
electroweak radiative corrections and, thus, to the superparticle spectrum.
Some possible implications of these results are discussed