Higgs production constraints on anomalous fermion couplings

Abstract

Certain anomalous fermion-gauge boson couplings, such as the flavor diagonal anomalous color magnetic (CMDM) and color electric (CEDM) dipole moments of quarks are not fully gauge invariant under the SM. Restoring gauge invariance with an elementary Higgs doublet implies that they also contribute to Higgs boson production at the LHC and we study the corresponding constraints that can be placed on them. In a similar manner we study the constraints that can be placed on the τ-lepton anomalous magnetic moment, electric dipole moment, weak dipole moments, and dimension eight gluonic couplings at the LHC.

Top down electroweak dipole operators

“…While direct collider probes of the (C)EDM have been studied extensively [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], a complementary way to access the top EDM (d t ) and CEDM ( dt ) is through their indirect effects, such as the resulting, radiatively-induced light fermion EDMs. This possibility has been explored in several studies [28][29][30][31].…”