  In this work, we propose and explore for the first time a new collider
signature of heavy neutral scalars typically found in many distinct classes of
multi-Higgs models. This signature, particular relevant in the context of the
Large Hadron Collider (LHC) measurements, is based on a topology with two
charged leptons and four jets arising from first and second generation quarks.
As an important benchmark scenario of the multi-Higgs models, we focus on a
recently proposed Branco-Grimus-Lavoura (BGL) type model enhanced with an
abelian U(1) flavour symmetry and featuring an additional sector of
right-handed neutrinos. We discuss how kinematics of the scalar fields in this
model can be used to efficiently separate the signal from the dominant
backgrounds and explore the discovery potential of the new heavy scalars in the
forthcoming LHC runs. The proposed method can be applied for analysis of
statistical significance of heavy scalars' production at the LHC and future
colliders in any multi-Higgs model.
