Speaker
Dr
Xavier Calmet
(Université Libre de Bruxelles)
Description
We consider gauge theories in a strong external magnetic like field. This situation can appear either in conventional
four-dimensional theories, but also naturally in extra-dimensional theories and especially in brane world models. We
show that in the lowest Landau level approximation, some of the coordinates become non-commutative. Our
construction is applied to a minimal extension of the standard model. It is shown that the Higgs sector might be
non-commutative whereas the remaining sectors of the standard model remain commutative. Signatures of this
model at the LHC are discussed. We then discuss an application to a dark matter sector coupled to the Higgs sector
of the standard model and show that here again, dark matter could be non-commutative, the standard model fields
remaining commutative.
Author
Dr
Xavier Calmet
(Université Libre de Bruxelles)
Co-author
Mr
Martin Kober
(Frankfurt U.)
