Dips at Colliders

Understand

We categorize new physics signatures that manifest themselves as a "dip" structure at colliders.

• One potential way to realize a dip is to require interactions to be zero when all particles are mass on-shell, but not if one or more are mass off-shell.
• For three particle interactions, we have found three interesting cases: one massive gauge boson with two identical scalars; one massless gauge boson with two different scalars; one massive gauge boson with two identical massless gauge bosons.
• For each case, we identify the relevant effective operators to explore its dip signature at the LHC.